National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2016-8743 Detail

Current Description

Apache HTTP Server, in all releases prior to 2.2.32 and 2.4.25, was liberal in the whitespace accepted from requests and sent in response lines and headers. Accepting these different behaviors represented a security concern when httpd participates in any chain of proxies or interacts with back-end application servers, either through mod_proxy or using conventional CGI mechanisms, and may result in request smuggling, response splitting and cache pollution.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N (V3 legend)
Impact Score: 3.6
Exploitability Score: 3.9


Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): High
Availability (A): None

CVSS v2.0 Severity and Metrics:

Base Score: 5.0 MEDIUM
Vector: (AV:N/AC:L/Au:N/C:N/I:P/A:N) (V2 legend)
Impact Subscore: 2.9
Exploitability Subscore: 10.0


Access Vector (AV): Network
Access Complexity (AC): Low
Authentication (AU): None
Confidentiality (C): None
Integrity (I): Partial
Availability (A): None
Additional Information:
Allows unauthorized modification

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://rhn.redhat.com/errata/RHSA-2017-1415.html
http://www.debian.org/security/2017/dsa-3796
http://www.securityfocus.com/bid/95077 Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1037508 Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:0906
https://access.redhat.com/errata/RHSA-2017:1161
https://access.redhat.com/errata/RHSA-2017:1413
https://access.redhat.com/errata/RHSA-2017:1414
https://access.redhat.com/errata/RHSA-2017:1721
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbmu03753en_us
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03725en_us Third Party Advisory
https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2016-8743 Vendor Advisory
https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba@%3Ccvs.httpd.apache.org%3E
https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830@%3Ccvs.httpd.apache.org%3E
https://security.gentoo.org/glsa/201701-36 Patch Third Party Advisory VDB Entry
https://security.netapp.com/advisory/ntap-20180423-0001/
https://support.apple.com/HT208221
https://www.tenable.com/security/tns-2017-04

Technical Details

Vulnerability Type (View All)

  • Data Processing Errors (CWE-19)

Known Affected Software Configurations Switch to CPE 2.3

Configuration 1 ( hide )
 cpe:/a:apache:http_server:2.4.1
     Show Matching CPE(s)
 cpe:/a:apache:http_server:2.4.2
     Show Matching CPE(s)
 cpe:/a:apache:http_server:2.4.3
     Show Matching CPE(s)
 cpe:/a:apache:http_server:2.4.4
     Show Matching CPE(s)
 cpe:/a:apache:http_server:2.4.6
     Show Matching CPE(s)
 cpe:/a:apache:http_server:2.4.7
     Show Matching CPE(s)
 cpe:/a:apache:http_server:2.4.9
     Show Matching CPE(s)
 cpe:/a:apache:http_server:2.4.10
     Show Matching CPE(s)
 cpe:/a:apache:http_server:2.4.12
     Show Matching CPE(s)
 cpe:/a:apache:http_server:2.4.16
     Show Matching CPE(s)
 cpe:/a:apache:http_server:2.4.17
     Show Matching CPE(s)
 cpe:/a:apache:http_server:2.4.18
     Show Matching CPE(s)
 cpe:/a:apache:http_server:2.4.20
     Show Matching CPE(s)
 cpe:/a:apache:http_server:2.4.23
     Show Matching CPE(s)


Change History

9 change records found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2016-8743
NVD Published Date:
07/27/2017
NVD Last Modified:
04/24/2018