CVE-2016-1908
high-risk
Published 2017-04-11
The client in OpenSSH before 7.2 mishandles failed cookie generation for untrusted X11 forwarding and relies on the local X11 server for access-control decisions, which allows remote X11 clients to trigger a fallback and obtain trusted X11 forwarding privileges by leveraging configuration issues on this X11 server, as demonstrated by lack of the SECURITY extension on this X11 server.
Do I need to act?
~
2.2% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
9
CVSS 9.8/10
Critical
NETWORK
/ LOW complexity
Affected Products (20)
References (24)
Mailing List
http://openwall.com/lists/oss-security/2016/01/15/13
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0465.html
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0741.html
Release Notes
http://www.openssh.com/txt/release-7.2
Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.h...
Third Party Advisory
http://www.securityfocus.com/bid/84427
Broken Link
http://www.securitytracker.com/id/1034705
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1298741
Third Party Advisory
https://security.gentoo.org/glsa/201612-18
Mailing List
http://openwall.com/lists/oss-security/2016/01/15/13
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0465.html
Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2016-0741.html
Release Notes
http://www.openssh.com/txt/release-7.2
Third Party Advisory
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.h...
Third Party Advisory
http://www.securityfocus.com/bid/84427
Broken Link
http://www.securitytracker.com/id/1034705
and 4 more references
58
/ 100
high-risk
Severity
32/34 · Critical
Exploitability
5/34 · Minimal
Exposure
21/34 · High