Vulnerability CVE-2016-5387
Published: 2016-07-18   Modified: 2016-07-19

Description:
The Apache HTTP Server through 2.4.23 follows RFC 3875 section 4.1.18 and therefore does not protect applications from the presence of untrusted client data in the HTTP_PROXY environment variable, which might allow remote attackers to redirect an application's outbound HTTP traffic to an arbitrary proxy server via a crafted Proxy header in an HTTP request, aka an "httpoxy" issue. NOTE: the vendor states "This mitigation has been assigned the identifier CVE-2016-5387"; in other words, this is not a CVE ID for a vulnerability.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Apache HTTP Server 2.4.23 redirect an application's outbound HTTP traffic
Anon
20.07.2016

Type:

CWE-284

 (Improper Access Control)

CVSS2 => (AV:N/AC:H/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.1/10
6.4/10
4.9/10
Exploit range
Attack complexity
Authentication
Remote
High
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Redhat -> Jboss web server 
Oracle -> Linux 
Oracle -> Solaris 
HP -> System management homepage 
Fedoraproject -> Fedora 
Apache -> Http server 

 References:
http://lists.opensuse.org/opensuse-updates/2016-07/msg00059.html
http://rhn.redhat.com/errata/RHSA-2016-1624.html
http://rhn.redhat.com/errata/RHSA-2016-1625.html
http://rhn.redhat.com/errata/RHSA-2016-1648.html
http://rhn.redhat.com/errata/RHSA-2016-1649.html
http://rhn.redhat.com/errata/RHSA-2016-1650.html
http://www.debian.org/security/2016/dsa-3623
http://www.kb.cert.org/vuls/id/797896
http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.html
http://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.html
http://www.oracle.com/technetwork/topics/security/linuxbulletinjul2016-3090544.html
http://www.securityfocus.com/bid/91816
http://www.securitytracker.com/id/1036330
http://www.ubuntu.com/usn/USN-3038-1
https://access.redhat.com/errata/RHSA-2016:1420
https://access.redhat.com/errata/RHSA-2016:1421
https://access.redhat.com/errata/RHSA-2016:1422
https://access.redhat.com/errata/RHSA-2016:1635
https://access.redhat.com/errata/RHSA-2016:1636
https://access.redhat.com/errata/RHSA-2016:1851
https://h20566.www2.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03770en_us
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05320149
https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05390722
https://httpoxy.org/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/6WCTE7443AYZ4EGELWLVNANA2WJCJIYI/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/NEKZAB7MTWVSMORHTEMCQNFFMIHCYF76/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/QPQAPWQA774JPDRV4UIB2SZAX6D3UZCV/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TGNHXJJSWDXAOEYH5TMXDPQVJMQQJOAZ/
https://security.gentoo.org/glsa/201701-36
https://support.apple.com/HT208221
https://www.apache.org/security/asf-httpoxy-response.txt
https://www.tenable.com/security/tns-2017-04
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