NVD - CVE-2021-40438

CVE-2021-40438 Detail

Modified

This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.

Description

A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier.

Metrics

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:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: 9.0 CRITICAL

Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: 6.8 MEDIUM

Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P)

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving NIST webspace. We have provided these links to other web sites because they may have information that would be of interest to you. No inferences should be drawn on account of other sites being referenced, or not, from this page. There may be other web sites that are more appropriate for your purpose. NIST does not necessarily endorse the views expressed, or concur with the facts presented on these sites. Further, NIST does not endorse any commercial products that may be mentioned on these sites. Please address comments about this page to nvd@nist.gov.

Hyperlink	Resource
https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf	Third Party Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-685781.pdf	Third Party Advisory
https://httpd.apache.org/security/vulnerabilities_24.html	Release Notes Vendor Advisory
https://httpd.apache.org/security/vulnerabilities_24.html	Release Notes Vendor Advisory
https://lists.apache.org/thread.html/r210807d0bb55f4aa6fbe1512be6bcc4dacd64e84940429fba329967a%40%3Cusers.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r210807d0bb55f4aa6fbe1512be6bcc4dacd64e84940429fba329967a%40%3Cusers.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r2eb200ac1340f69aa22af61ab34780c531d110437910cb9c0ece3b37%40%3Cbugs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r2eb200ac1340f69aa22af61ab34780c531d110437910cb9c0ece3b37%40%3Cbugs.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432%40%3Cusers.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r3925e167d5eb1c75def3750c155d753064e1d34a143028bb32910432%40%3Cusers.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c%40%3Cusers.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r61fdbfc26ab170f4e6492ef3bd5197c20b862ce156e9d5a54d4b899c%40%3Cusers.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697%40%3Cusers.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r82838efc5fa6fc4c73986399c9b71573589f78b31846aff5bd9b1697%40%3Cusers.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029%40%3Cusers.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/r82c077663f9759c7df5a6656f925b3ee4f55fcd33c889ba7cd687029%40%3Cusers.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rf6954e60b1c8e480678ce3d02f61b8a788997785652e9557a3265c00%40%3Cusers.httpd.apache.org%3E	Mailing List
https://lists.apache.org/thread.html/rf6954e60b1c8e480678ce3d02f61b8a788997785652e9557a3265c00%40%3Cusers.httpd.apache.org%3E	Mailing List
https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html	Mailing List Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/10/msg00001.html	Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/	Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/SPBR6WUYBJNACHKE65SPL7TJOHX7RHWD/	Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/	Release Notes
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZNCYSR3BXT36FFF4XTCPL3HDQK4VP45R/	Release Notes
https://security.gentoo.org/glsa/202208-20	Third Party Advisory
https://security.gentoo.org/glsa/202208-20	Third Party Advisory
https://security.netapp.com/advisory/ntap-20211008-0004/	Third Party Advisory
https://security.netapp.com/advisory/ntap-20211008-0004/	Third Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ	Broken Link Third Party Advisory
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-apache-httpd-2.4.49-VWL69sWQ	Broken Link Third Party Advisory
https://www.debian.org/security/2021/dsa-4982	Mailing List Third Party Advisory
https://www.debian.org/security/2021/dsa-4982	Mailing List Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html	Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpuapr2022.html	Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html	Patch Third Party Advisory
https://www.oracle.com/security-alerts/cpujan2022.html	Patch Third Party Advisory
https://www.tenable.com/security/tns-2021-17	Third Party Advisory
https://www.tenable.com/security/tns-2021-17	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-Side Request Forgery (SSRF)	12/01/2021	12/15/2021	Apply updates per vendor instructions.

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-918	Server-Side Request Forgery (SSRF)	NIST Apache Software Foundation

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

27 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2021-40438
NVD Published Date:
09/16/2021
NVD Last Modified:
11/21/2024
Source:
Apache Software Foundation

CVE-2021-40438 Detail

Description

Metrics

References to Advisories, Solutions, and Tools

This CVE is in CISA's Known Exploited Vulnerabilities Catalog

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

CVE Modified by CVE 11/21/2024 1:24:06 AM

Modified Analysis by NIST 7/24/2024 1:08:07 PM

CVE Modified by Apache Software Foundation 5/14/2024 5:26:54 AM

CVE Modified by Apache Software Foundation 11/06/2023 10:38:35 PM

Modified Analysis by NIST 10/04/2022 10:21:29 PM

CVE Modified by Apache Software Foundation 8/15/2022 7:15:29 AM

CVE Modified by Apache Software Foundation 6/14/2022 7:15:10 AM

CVE Modified by Apache Software Foundation 4/19/2022 8:16:21 PM

Modified Analysis by NIST 3/25/2022 2:37:27 PM

CVE Modified by Apache Software Foundation 2/07/2022 11:16:27 AM

Modified Analysis by NIST 11/29/2021 12:20:20 PM

CVE Modified by Apache Software Foundation 11/24/2021 6:15:08 PM

Modified Analysis by NIST 11/01/2021 10:38:17 AM

CVE Modified by Apache Software Foundation 10/19/2021 4:15:08 PM

CVE Modified by Apache Software Foundation 10/19/2021 8:15:07 AM

CVE Modified by Apache Software Foundation 10/19/2021 5:15:08 AM

CVE Modified by Apache Software Foundation 10/10/2021 3:15:07 PM

CVE Modified by Apache Software Foundation 10/08/2021 8:15:07 PM

CVE Modified by Apache Software Foundation 10/08/2021 11:15:09 AM

Modified Analysis by NIST 10/04/2021 11:46:25 AM

CVE Modified by Apache Software Foundation 10/02/2021 2:15:07 PM

Initial Analysis by NIST 9/27/2021 3:09:56 PM

CVE Modified by Apache Software Foundation 9/24/2021 9:15:53 PM

CVE Modified by Apache Software Foundation 9/23/2021 11:15:08 AM

CVE Modified by Apache Software Foundation 9/23/2021 9:15:11 AM

CVE Modified by Apache Software Foundation 9/23/2021 8:15:08 AM

CVE Modified by Apache Software Foundation 9/20/2021 12:15:14 PM

Quick Info