CVE-2016-8743
Vulnerability Summary
Timeline
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.
CVSS Metrics
- v3.1•HIGH•Score: 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
- v3.0•MEDIUM•Score: 4CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N
- v2.0•MEDIUM•Score: 5AV:N/AC:L/Au:N/C:N/I:P/A:N
EPSS Trends
Current EPSS score: 13.25%• Percentile: 96%
Affected Systems
- apache software foundation•apache http server
2.2.0 to 2.2.31, 2.4.1 to 2.4.23
- apache•http_server
≥ 2.2.0, ≤ 2.2.31 | ≥ 2.4.1, ≤ 2.4.23
- debian•apache2
< 2.4.25-1 | < 2.4.25-1 | < 2.4.25-1 | < 2.4.25-1
- debian•debian_linux
8.0 | 9.0
- netapp•clustered_data_ontap
na
- netapp•oncommand_unified_manager
na
- redhat•enterprise_linux_desktop
6.0 | 7.0
- redhat•enterprise_linux_eus
7.3 | 7.4 | 7.5 | 7.6 | 7.7
- redhat•enterprise_linux_server
6.0 | 7.0
- redhat•enterprise_linux_server_aus
7.3 | 7.4 | 7.6 | 7.7
- redhat•enterprise_linux_server_tus
7.3 | 7.6 | 7.7
- redhat•enterprise_linux_workstation
6.0 | 7.0
- redhat•jboss_core_services
1.0
- redhat•httpd
< 0:2.2.15-60.el6_9.4 | < 0:2.2.15-60.el6_9.4 | < 0:2.2.15-60.el6_9.4 | < 0:2.2.15-60.el6_9.4
- redhat•httpd-debuginfo
< 0:2.2.15-60.el6_9.4 | < 0:2.2.15-60.el6_9.4 | < 0:2.2.15-60.el6_9.4 | < 0:2.2.15-60.el6_9.4
- redhat•httpd-devel
< 0:2.2.15-60.el6_9.4 | < 0:2.2.15-60.el6_9.4 | < 0:2.2.15-60.el6_9.4 | < 0:2.2.15-60.el6_9.4
- redhat•httpd-manual
< 0:2.2.15-60.el6_9.4 | < 0:2.2.15-60.el6_9.4 | < 0:2.2.15-60.el6_9.4 | < 0:2.2.15-60.el6_9.4
- redhat•httpd-tools
< 0:2.2.15-60.el6_9.4 | < 0:2.2.15-60.el6_9.4 | < 0:2.2.15-60.el6_9.4 | < 0:2.2.15-60.el6_9.4
- redhat•mod_ssl
< 1:2.2.15-60.el6_9.4 | < 1:2.2.15-60.el6_9.4 | < 1:2.2.15-60.el6_9.4 | < 1:2.2.15-60.el6_9.4
References (50)
- https://support.apple.com/HT208221
- http://www.debian.org/security/2017/dsa-3796
- https://access.redhat.com/errata/RHSA-2017:1721
- http://www.securitytracker.com/id/1037508
- https://access.redhat.com/errata/RHSA-2017:1413
- https://access.redhat.com/errata/RHSA-2017:1161
- https://www.tenable.com/security/tns-2017-04
- https://access.redhat.com/errata/RHSA-2017:1414
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbmu03753en_us
- http://www.securityfocus.com/bid/95077
- https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbux03725en_us
- http://rhn.redhat.com/errata/RHSA-2017-1415.html
- https://access.redhat.com/errata/RHSA-2017:0906
- https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2016-8743
- https://security.gentoo.org/glsa/201701-36
- https://security.netapp.com/advisory/ntap-20180423-0001/
- https://lists.apache.org/thread.html/56c2e7cc9deb1c12a843d0dc251ea7fd3e7e80293cde02fcd65286ba%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/84a3714f0878781f6ed84473d1a503d2cc382277e100450209231830%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/8d63cb8e9100f28a99429b4328e4e7cebce861d5772ac9863ba2ae6f%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/f7f95ac1cd9895db2714fa3ebaa0b94d0c6df360f742a40951384a53%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r57608dc51b79102f3952ae06f54d5277b649c86d6533dcd6a7d201f7%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rd18c3c43602e66f9cdcf09f1de233804975b9572b0456cc582390b6f%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/re3d27b6250aa8548b8845d314bb8a350b3df326cacbbfdfe4d455234%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rfbaf647d52c1cb843e726a0933f156366a806cead84fbd430951591b%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r9ea3538f229874c80a10af473856a81fbf5f694cd7f471cc679ba70b%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rc998b18880df98bafaade071346690c2bc1444adaa1a1ea464b93f0a%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/re1e3a24664d35bcd0a0e793e0b5fc6ca6c107f99a1b2c545c5d4b467%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r04e89e873d54116a0635ef2f7061c15acc5ed27ef7500997beb65d6f%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rdca61ae990660bacb682295f2a09d34612b7bb5f457577fe17f4d064%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r6521a7f62276340eabdb3339b2aa9a38c5f59d978497a1f794af53be%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rcc44594d4d6579b90deccd4536b5d31f099ef563df39b094be286b9e%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r94284b139540e5287ebdd3450682d3e3d187263dd6b75af8fa7d4890%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r4fe84db67fe9dc906c6185e58bbd9913f4356dd555a5c3db490694e5%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r09b8a39d1262adbab5528eea73df1b1f93e919bf004ed5a843d9cad1%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rfcb6c7b9e7ca727a7eeeb5f13f89488a03981cfa0e7c3125f18fa239%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/rad01d817195e6cc871cb1d73b207ca326379a20a6e7f30febaf56d24%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r476d175be0aaf4a17680ef98c5153b4d336eaef76fb2224cc94c463a%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r75cbe9ea3e2114e4271bbeca7aff96117b50c1b6eb7c4772b0337c1f%40%3Ccvs.httpd.apache.org%3E
- https://access.redhat.com/security/updates/classification/#moderate
- https://access.redhat.com/articles/3013361
- https://bugzilla.redhat.com/show_bug.cgi?id=1406822
- https://bugzilla.redhat.com/show_bug.cgi?id=1463354
- https://security.access.redhat.com/data/csaf/v2/advisories/2017/rhsa-2017_1721.json
- https://access.redhat.com/security/cve/CVE-2016-8743
- https://www.cve.org/CVERecord?id=CVE-2016-8743
- https://nvd.nist.gov/vuln/detail/CVE-2016-8743
- https://httpd.apache.org/security/vulnerabilities_24.html#2.4.25
- https://security-tracker.debian.org/tracker/CVE-2016-8743