CVE-2021-41773
Detail
Description
A flaw was found in a change made to path normalization in Apache HTTP Server 2.4.49. An attacker could use a path traversal attack to map URLs to files outside the directories configured by Alias-like directives. If files outside of these directories are not protected by the usual default configuration "require all denied", these requests can succeed. If CGI scripts are also enabled for these aliased pathes, this could allow for remote code execution. This issue is known to be exploited in the wild. This issue only affects Apache 2.4.49 and not earlier versions. The fix in Apache HTTP Server 2.4.50 was found to be incomplete, see CVE-2021-42013.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS 2.0 Severity and Vector Strings:
Vector:
(AV:N/AC:M/Au:N/C:P/I:N/A:N)
References to Advisories, Solutions, and Tools
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URL
Source(s)
Tag(s)
http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal-Remote-Code-Execution.html
Apache Software Foundation, CVE
Exploit
Third Party Advisory
VDB Entry
http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal.html
Apache Software Foundation, CVE
Exploit
Third Party Advisory
VDB Entry
http://packetstormsecurity.com/files/164629/Apache-2.4.49-2.4.50-Traversal-Remote-Code-Execution.html
Apache Software Foundation, CVE
Exploit
Third Party Advisory
VDB Entry
http://packetstormsecurity.com/files/164941/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html
Apache Software Foundation, CVE
Exploit
Third Party Advisory
VDB Entry
http://www.openwall.com/lists/oss-security/2021/10/05/2
Apache Software Foundation, CVE
Mailing List
Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/07/1
Apache Software Foundation, CVE
Mailing List
Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/07/6
Apache Software Foundation, CVE
Mailing List
Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/1
Apache Software Foundation, CVE
Exploit
Mailing List
Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/2
Apache Software Foundation, CVE
Mailing List
Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/3
Apache Software Foundation, CVE
Exploit
Mailing List
Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/4
Apache Software Foundation, CVE
Mailing List
Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/5
Apache Software Foundation, CVE
Mailing List
Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/6
Apache Software Foundation, CVE
Mailing List
Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/09/1
Apache Software Foundation, CVE
Mailing List
Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/11/4
Apache Software Foundation, CVE
Mailing List
Patch
Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/15/3
Apache Software Foundation, CVE
Mailing List
Patch
Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/16/1
Apache Software Foundation, CVE
Mailing List
Third Party Advisory
https://httpd.apache.org/security/vulnerabilities_24.html
Apache Software Foundation, CVE
Release Notes
Vendor Advisory
https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3%40%3Ccvs.httpd.apache.org%3E
Apache Software Foundation, CVE
Mailing List
Patch
https://lists.apache.org/thread.html/r6abf5f2ba6f1aa8b1030f95367aaf17660c4e4c78cb2338aee18982f%40%3Cusers.httpd.apache.org%3E
Apache Software Foundation, CVE
Mailing List
https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837%40%3Cannounce.apache.org%3E
Apache Software Foundation, CVE
Mailing List
https://lists.apache.org/thread.html/r98d704ed4377ed889d40479db79ed1ee2f43b2ebdd79ce84b042df45%40%3Cannounce.apache.org%3E
Apache Software Foundation, CVE
Mailing List
https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb%40%3Cusers.httpd.apache.org%3E
Apache Software Foundation, CVE
Mailing List
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/
Apache Software Foundation, CVE
Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/
Apache Software Foundation, CVE
Release Notes
https://security.gentoo.org/glsa/202208-20
Apache Software Foundation, CVE
Third Party Advisory
https://security.netapp.com/advisory/ntap-20211029-0009/
Apache Software Foundation, CVE
Third Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ
Apache Software Foundation, CVE
Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html
Apache Software Foundation, CVE
Patch
Third Party Advisory
This CVE is in CISA's Known Exploited Vulnerabilities Catalog
Reference
CISA's BOD 22-01 and Known
Exploited Vulnerabilities Catalog for further guidance and requirements.
Vulnerability Name
Date Added
Due Date
Required Action
Apache HTTP Server Path Traversal Vulnerability
11/03/2021
11/17/2021
Apply updates per vendor instructions.
Weakness Enumeration
CWE-ID
CWE Name
Source
CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
NIST  
Apache Software Foundation  
Change History
35 change records found show changes
Modified Analysis by NIST 3/21/2025 5:07:31 PM
Action
Type
Old Value
New Value
CVE Modified by CISA-ADP 2/04/2025 10:15:13 AM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVE Modified by CVE 11/21/2024 1:26:44 AM
Action
Type
Old Value
New Value
Added
Reference
http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal-Remote-Code-Execution.html
Added
Reference
http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal.html
Added
Reference
http://packetstormsecurity.com/files/164629/Apache-2.4.49-2.4.50-Traversal-Remote-Code-Execution.html
Added
Reference
http://packetstormsecurity.com/files/164941/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html
Added
Reference
http://www.openwall.com/lists/oss-security/2021/10/05/2
Added
Reference
http://www.openwall.com/lists/oss-security/2021/10/07/1
Added
Reference
http://www.openwall.com/lists/oss-security/2021/10/07/6
Added
Reference
http://www.openwall.com/lists/oss-security/2021/10/08/1
Added
Reference
http://www.openwall.com/lists/oss-security/2021/10/08/2
Added
Reference
http://www.openwall.com/lists/oss-security/2021/10/08/3
Added
Reference
http://www.openwall.com/lists/oss-security/2021/10/08/4
Added
Reference
http://www.openwall.com/lists/oss-security/2021/10/08/5
Added
Reference
http://www.openwall.com/lists/oss-security/2021/10/08/6
Added
Reference
http://www.openwall.com/lists/oss-security/2021/10/09/1
Added
Reference
http://www.openwall.com/lists/oss-security/2021/10/11/4
Added
Reference
http://www.openwall.com/lists/oss-security/2021/10/15/3
Added
Reference
http://www.openwall.com/lists/oss-security/2021/10/16/1
Added
Reference
https://httpd.apache.org/security/vulnerabilities_24.html
Added
Reference
https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3%40%3Ccvs.httpd.apache.org%3E
Added
Reference
https://lists.apache.org/thread.html/r6abf5f2ba6f1aa8b1030f95367aaf17660c4e4c78cb2338aee18982f%40%3Cusers.httpd.apache.org%3E
Added
Reference
https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837%40%3Cannounce.apache.org%3E
Added
Reference
https://lists.apache.org/thread.html/r98d704ed4377ed889d40479db79ed1ee2f43b2ebdd79ce84b042df45%40%3Cannounce.apache.org%3E
Added
Reference
https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb%40%3Cusers.httpd.apache.org%3E
Added
Reference
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/
Added
Reference
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/
Added
Reference
https://security.gentoo.org/glsa/202208-20
Added
Reference
https://security.netapp.com/advisory/ntap-20211029-0009/
Added
Reference
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ
Added
Reference
https://www.oracle.com/security-alerts/cpujan2022.html
Modified Analysis by NIST 7/26/2024 3:40:13 PM
Action
Type
Old Value
New Value
Changed
Reference Type
https://httpd.apache.org/security/vulnerabilities_24.html Vendor Advisory
https://httpd.apache.org/security/vulnerabilities_24.html Release Notes, Vendor Advisory
Changed
Reference Type
https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3%40%3Ccvs.httpd.apache.org%3E No Types Assigned
https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3%40%3Ccvs.httpd.apache.org%3E Mailing List, Patch
Changed
Reference Type
https://lists.apache.org/thread.html/r6abf5f2ba6f1aa8b1030f95367aaf17660c4e4c78cb2338aee18982f%40%3Cusers.httpd.apache.org%3E No Types Assigned
https://lists.apache.org/thread.html/r6abf5f2ba6f1aa8b1030f95367aaf17660c4e4c78cb2338aee18982f%40%3Cusers.httpd.apache.org%3E Mailing List
Changed
Reference Type
https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837%40%3Cannounce.apache.org%3E No Types Assigned
https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837%40%3Cannounce.apache.org%3E Mailing List
Changed
Reference Type
https://lists.apache.org/thread.html/r98d704ed4377ed889d40479db79ed1ee2f43b2ebdd79ce84b042df45%40%3Cannounce.apache.org%3E No Types Assigned
https://lists.apache.org/thread.html/r98d704ed4377ed889d40479db79ed1ee2f43b2ebdd79ce84b042df45%40%3Cannounce.apache.org%3E Mailing List
Changed
Reference Type
https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb%40%3Cusers.httpd.apache.org%3E No Types Assigned
https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb%40%3Cusers.httpd.apache.org%3E Mailing List
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/ No Types Assigned
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/ Release Notes
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/ No Types Assigned
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/ Release Notes
CVE Modified by Apache Software Foundation 5/14/2024 5:29:26 AM
Action
Type
Old Value
New Value
CVE Modified by Apache Software Foundation 11/06/2023 10:39:00 PM
Action
Type
Old Value
New Value
Added
Reference
Apache Software Foundation https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3%40%3Ccvs.httpd.apache.org%3E [No types assigned]
Added
Reference
Apache Software Foundation https://lists.apache.org/thread.html/r6abf5f2ba6f1aa8b1030f95367aaf17660c4e4c78cb2338aee18982f%40%3Cusers.httpd.apache.org%3E [No types assigned]
Added
Reference
Apache Software Foundation https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837%40%3Cannounce.apache.org%3E [No types assigned]
Added
Reference
Apache Software Foundation https://lists.apache.org/thread.html/r98d704ed4377ed889d40479db79ed1ee2f43b2ebdd79ce84b042df45%40%3Cannounce.apache.org%3E [No types assigned]
Added
Reference
Apache Software Foundation https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb%40%3Cusers.httpd.apache.org%3E [No types assigned]
Added
Reference
Apache Software Foundation https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/ [No types assigned]
Added
Reference
Apache Software Foundation https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/ [No types assigned]
Removed
Reference
Apache Software Foundation https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3@%3Ccvs.httpd.apache.org%3E
Removed
Reference
Apache Software Foundation https://lists.apache.org/thread.html/r6abf5f2ba6f1aa8b1030f95367aaf17660c4e4c78cb2338aee18982f@%3Cusers.httpd.apache.org%3E
Removed
Reference
Apache Software Foundation https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837@%3Cannounce.apache.org%3E
Removed
Reference
Apache Software Foundation https://lists.apache.org/thread.html/r98d704ed4377ed889d40479db79ed1ee2f43b2ebdd79ce84b042df45@%3Cannounce.apache.org%3E
Removed
Reference
Apache Software Foundation https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb@%3Cusers.httpd.apache.org%3E
Removed
Reference
Apache Software Foundation https://lists.fedoraproject.org/archives/list/[email protected] /message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/
Removed
Reference
Apache Software Foundation https://lists.fedoraproject.org/archives/list/[email protected] /message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/
Modified Analysis by NIST 10/28/2022 12:16:21 PM
Action
Type
Old Value
New Value
Changed
Reference Type
https://security.gentoo.org/glsa/202208-20 No Types Assigned
https://security.gentoo.org/glsa/202208-20 Third Party Advisory
CVE Modified by Apache Software Foundation 8/15/2022 7:15:30 AM
Action
Type
Old Value
New Value
Added
Reference
https://security.gentoo.org/glsa/202208-20 [No Types Assigned]
Modified Analysis by NIST 3/25/2022 2:22:13 PM
Action
Type
Old Value
New Value
Added
CPE Configuration
OR
*cpe:2.3:a:netapp:cloud_backup:-:*:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:a:oracle:instantis_enterprisetrack:17.1:*:*:*:*:*:*:*
*cpe:2.3:a:oracle:instantis_enterprisetrack:17.2:*:*:*:*:*:*:*
*cpe:2.3:a:oracle:instantis_enterprisetrack:17.3:*:*:*:*:*:*:*
Changed
Reference Type
https://www.oracle.com/security-alerts/cpujan2022.html No Types Assigned
https://www.oracle.com/security-alerts/cpujan2022.html Patch, Third Party Advisory
CVE Modified by Apache Software Foundation 2/07/2022 11:16:29 AM
Action
Type
Old Value
New Value
Added
Reference
https://www.oracle.com/security-alerts/cpujan2022.html [No Types Assigned]
Modified Analysis by NIST 11/30/2021 3:18:04 PM
Action
Type
Old Value
New Value
Added
CPE Configuration
OR
*cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
*cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Changed
Reference Type
http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal-Remote-Code-Execution.html Exploit, Third Party Advisory
http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
Changed
Reference Type
http://packetstormsecurity.com/files/164629/Apache-2.4.49-2.4.50-Traversal-Remote-Code-Execution.html No Types Assigned
http://packetstormsecurity.com/files/164629/Apache-2.4.49-2.4.50-Traversal-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
Changed
Reference Type
http://packetstormsecurity.com/files/164941/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html No Types Assigned
http://packetstormsecurity.com/files/164941/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html Exploit, Third Party Advisory, VDB Entry
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/07/1 Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/07/1 Mailing List, Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/07/6 Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/07/6 Mailing List, Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/08/1 Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/1 Exploit, Mailing List, Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/08/2 Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/2 Mailing List, Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/08/3 Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/3 Exploit, Mailing List, Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/08/4 Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/4 Mailing List, Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/08/5 Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/5 Mailing List, Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/08/6 Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/08/6 Mailing List, Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/09/1 Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/09/1 Mailing List, Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/11/4 Third Party Advisory
http://www.openwall.com/lists/oss-security/2021/10/11/4 Mailing List, Patch, Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/15/3 No Types Assigned
http://www.openwall.com/lists/oss-security/2021/10/15/3 Mailing List, Patch, Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/16/1 No Types Assigned
http://www.openwall.com/lists/oss-security/2021/10/16/1 Mailing List, Third Party Advisory
Changed
Reference Type
https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3@%3Ccvs.httpd.apache.org%3E Mailing List, Vendor Advisory
https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3@%3Ccvs.httpd.apache.org%3E Mailing List, Patch, Vendor Advisory
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/[email protected] /message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/ No Types Assigned
https://lists.fedoraproject.org/archives/list/[email protected] /message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/ Mailing List, Third Party Advisory
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/[email protected] /message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/ No Types Assigned
https://lists.fedoraproject.org/archives/list/[email protected] /message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/ Mailing List, Third Party Advisory
Changed
Reference Type
https://security.netapp.com/advisory/ntap-20211029-0009/ No Types Assigned
https://security.netapp.com/advisory/ntap-20211029-0009/ Third Party Advisory
CVE Modified by Apache Software Foundation 11/11/2021 12:15:07 PM
Action
Type
Old Value
New Value
Added
Reference
http://packetstormsecurity.com/files/164941/Apache-HTTP-Server-2.4.50-Remote-Code-Execution.html [No Types Assigned]
CVE Modified by Apache Software Foundation 10/29/2021 9:15:09 AM
Action
Type
Old Value
New Value
Added
Reference
https://security.netapp.com/advisory/ntap-20211029-0009/ [No Types Assigned]
CVE Modified by Apache Software Foundation 10/25/2021 3:15:09 PM
Action
Type
Old Value
New Value
Added
Reference
http://packetstormsecurity.com/files/164629/Apache-2.4.49-2.4.50-Traversal-Remote-Code-Execution.html [No Types Assigned]
CVE Modified by Apache Software Foundation 10/16/2021 5:15:08 AM
Action
Type
Old Value
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Reference
http://www.openwall.com/lists/oss-security/2021/10/16/1 [No Types Assigned]
CVE Modified by Apache Software Foundation 10/15/2021 5:15:08 PM
Action
Type
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Reference
http://www.openwall.com/lists/oss-security/2021/10/15/3 [No Types Assigned]
CVE Modified by Apache Software Foundation 10/14/2021 11:15:06 PM
Action
Type
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Reference
https://lists.fedoraproject.org/archives/list/[email protected] /message/WS5RVHOIIRECG65ZBTZY7IEJVWQSQPG3/ [No Types Assigned]
CVE Modified by Apache Software Foundation 10/12/2021 10:15:10 PM
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Type
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Reference
https://lists.fedoraproject.org/archives/list/[email protected] /message/RMIIEFINL6FUIOPD2A3M5XC6DH45Y3CC/ [No Types Assigned]
Initial Analysis by NIST 10/12/2021 11:43:01 AM
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CVSS V3.1
NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Added
CVSS V2
NIST (AV:N/AC:M/Au:N/C:P/I:N/A:N)
Added
CWE
NIST CWE-22
Added
CPE Configuration
OR
*cpe:2.3:a:apache:http_server:2.4.49:*:*:*:*:*:*:*
Changed
Reference Type
http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal-Remote-Code-Execution.html No Types Assigned
http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal-Remote-Code-Execution.html Exploit, Third Party Advisory
Changed
Reference Type
http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal.html No Types Assigned
http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal.html Exploit, Third Party Advisory, VDB Entry
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/05/2 No Types Assigned
http://www.openwall.com/lists/oss-security/2021/10/05/2 Mailing List, Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/07/1 No Types Assigned
http://www.openwall.com/lists/oss-security/2021/10/07/1 Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/07/6 No Types Assigned
http://www.openwall.com/lists/oss-security/2021/10/07/6 Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/08/1 No Types Assigned
http://www.openwall.com/lists/oss-security/2021/10/08/1 Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/08/2 No Types Assigned
http://www.openwall.com/lists/oss-security/2021/10/08/2 Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/08/3 No Types Assigned
http://www.openwall.com/lists/oss-security/2021/10/08/3 Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/08/4 No Types Assigned
http://www.openwall.com/lists/oss-security/2021/10/08/4 Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/08/5 No Types Assigned
http://www.openwall.com/lists/oss-security/2021/10/08/5 Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/08/6 No Types Assigned
http://www.openwall.com/lists/oss-security/2021/10/08/6 Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/09/1 No Types Assigned
http://www.openwall.com/lists/oss-security/2021/10/09/1 Third Party Advisory
Changed
Reference Type
http://www.openwall.com/lists/oss-security/2021/10/11/4 No Types Assigned
http://www.openwall.com/lists/oss-security/2021/10/11/4 Third Party Advisory
Changed
Reference Type
https://httpd.apache.org/security/vulnerabilities_24.html No Types Assigned
https://httpd.apache.org/security/vulnerabilities_24.html Vendor Advisory
Changed
Reference Type
https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3@%3Ccvs.httpd.apache.org%3E No Types Assigned
https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3@%3Ccvs.httpd.apache.org%3E Mailing List, Vendor Advisory
Changed
Reference Type
https://lists.apache.org/thread.html/r6abf5f2ba6f1aa8b1030f95367aaf17660c4e4c78cb2338aee18982f@%3Cusers.httpd.apache.org%3E No Types Assigned
https://lists.apache.org/thread.html/r6abf5f2ba6f1aa8b1030f95367aaf17660c4e4c78cb2338aee18982f@%3Cusers.httpd.apache.org%3E Mailing List, Vendor Advisory
Changed
Reference Type
https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837@%3Cannounce.apache.org%3E No Types Assigned
https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837@%3Cannounce.apache.org%3E Mailing List, Vendor Advisory
Changed
Reference Type
https://lists.apache.org/thread.html/r98d704ed4377ed889d40479db79ed1ee2f43b2ebdd79ce84b042df45@%3Cannounce.apache.org%3E No Types Assigned
https://lists.apache.org/thread.html/r98d704ed4377ed889d40479db79ed1ee2f43b2ebdd79ce84b042df45@%3Cannounce.apache.org%3E Mailing List, Vendor Advisory
Changed
Reference Type
https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb@%3Cusers.httpd.apache.org%3E No Types Assigned
https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb@%3Cusers.httpd.apache.org%3E Mailing List, Vendor Advisory
Changed
Reference Type
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ No Types Assigned
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ Third Party Advisory
CVE Modified by Apache Software Foundation 10/11/2021 11:15:07 AM
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Reference
http://www.openwall.com/lists/oss-security/2021/10/11/4 [No Types Assigned]
CVE Modified by Apache Software Foundation 10/11/2021 6:15:07 AM
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Description
A flaw was found in a change made to path normalization in Apache HTTP Server 2.4.49. An attacker could use a path traversal attack to map URLs to files outside the expected document root. If files outside of the document root are not protected by "require all denied" these requests can succeed. Additionally this flaw could leak the source of interpreted files like CGI scripts. This issue is known to be exploited in the wild. This issue only affects Apache 2.4.49 and not earlier versions.
A flaw was found in a change made to path normalization in Apache HTTP Server 2.4.49. An attacker could use a path traversal attack to map URLs to files outside the directories configured by Alias-like directives. If files outside of these directories are not protected by the usual default configuration "require all denied", these requests can succeed. If CGI scripts are also enabled for these aliased pathes, this could allow for remote code execution. This issue is known to be exploited in the wild. This issue only affects Apache 2.4.49 and not earlier versions. The fix in Apache HTTP Server 2.4.50 was found to be incomplete, see CVE-2021-42013.
CVE Modified by Apache Software Foundation 10/09/2021 5:15:07 PM
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Reference
http://www.openwall.com/lists/oss-security/2021/10/08/5 [No Types Assigned]
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Reference
http://www.openwall.com/lists/oss-security/2021/10/08/6 [No Types Assigned]
Added
Reference
http://www.openwall.com/lists/oss-security/2021/10/09/1 [No Types Assigned]
CVE Modified by Apache Software Foundation 10/08/2021 8:15:07 PM
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Type
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Reference
http://www.openwall.com/lists/oss-security/2021/10/08/3 [No Types Assigned]
Added
Reference
http://www.openwall.com/lists/oss-security/2021/10/08/4 [No Types Assigned]
CVE Modified by Apache Software Foundation 10/08/2021 5:15:07 PM
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Type
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Reference
http://www.openwall.com/lists/oss-security/2021/10/08/2 [No Types Assigned]
CVE Modified by Apache Software Foundation 10/08/2021 10:15:08 AM
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Type
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Reference
https://lists.apache.org/thread.html/r17a4c6ce9aff662efd9459e9d1850ab4a611cb23392fc68264c72cb3@%3Ccvs.httpd.apache.org%3E [No Types Assigned]
CVE Modified by Apache Software Foundation 10/08/2021 5:15:08 AM
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Type
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Reference
http://www.openwall.com/lists/oss-security/2021/10/08/1 [No Types Assigned]
CVE Modified by Apache Software Foundation 10/07/2021 7:15:08 PM
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Type
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Reference
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-pathtrv-LAzg68cZ [No Types Assigned]
CVE Modified by Apache Software Foundation 10/07/2021 2:15:08 PM
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Type
Old Value
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Reference
http://www.openwall.com/lists/oss-security/2021/10/07/6 [No Types Assigned]
CVE Modified by Apache Software Foundation 10/07/2021 1:15:08 PM
Action
Type
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Reference
https://lists.apache.org/thread.html/r7c795cd45a3384d4d27e57618a215b0ed19cb6ca8eb070061ad5d837@%3Cannounce.apache.org%3E [No Types Assigned]
Added
Reference
https://lists.apache.org/thread.html/rb5b0e46f179f60b0c70204656bc52fcb558e961cb4d06a971e9e3efb@%3Cusers.httpd.apache.org%3E [No Types Assigned]
CVE Modified by Apache Software Foundation 10/07/2021 11:15:10 AM
Action
Type
Old Value
New Value
Added
Reference
http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal-Remote-Code-Execution.html [No Types Assigned]
CVE Modified by Apache Software Foundation 10/07/2021 8:15:07 AM
Action
Type
Old Value
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Reference
http://www.openwall.com/lists/oss-security/2021/10/07/1 [No Types Assigned]
CVE Modified by Apache Software Foundation 10/06/2021 1:15:08 PM
Action
Type
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Reference
http://packetstormsecurity.com/files/164418/Apache-HTTP-Server-2.4.49-Path-Traversal.html [No Types Assigned]
CVE Modified by Apache Software Foundation 10/05/2021 11:15:07 AM
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Type
Old Value
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Reference
http://www.openwall.com/lists/oss-security/2021/10/05/2 [No Types Assigned]
CVE Modified by Apache Software Foundation 10/05/2021 9:15:08 AM
Action
Type
Old Value
New Value
Added
Reference
https://lists.apache.org/thread.html/r98d704ed4377ed889d40479db79ed1ee2f43b2ebdd79ce84b042df45@%3Cannounce.apache.org%3E [No Types Assigned]
CVE Modified by Apache Software Foundation 10/05/2021 8:15:08 AM
Action
Type
Old Value
New Value
Added
Reference
https://lists.apache.org/thread.html/r6abf5f2ba6f1aa8b1030f95367aaf17660c4e4c78cb2338aee18982f@%3Cusers.httpd.apache.org%3E [No Types Assigned]
Quick Info
CVE Dictionary Entry: CVE-2021-41773 NVD
Published Date: 10/05/2021 NVD
Last Modified: 03/21/2025
Source: Apache Software Foundation
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