CVE-2016-1908
Severity CVSS v4.0:
Pending analysis
Type:
CWE-287
Authentication Issues
Publication date:
11/04/2017
Last modified:
20/04/2025
Description
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.
Impact
Base Score 3.x
9.80
Severity 3.x
CRITICAL
Base Score 2.0
7.50
Severity 2.0
HIGH
Vulnerable products and versions
CPE | From | Up to |
---|---|---|
cpe:2.3:a:openbsd:openssh:*:*:*:*:*:*:*:* | 7.2 (excluding) | |
cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:* | ||
cpe:2.3:o:oracle:linux:6:-:*:*:*:*:*:* | ||
cpe:2.3:o:oracle:linux:7:-:*:*:*:*:*:* | ||
cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:*:*:*:*:*:*:* | ||
cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:*:*:*:*:*:*:* | ||
cpe:2.3:o:redhat:enterprise_linux_eus:7.2:*:*:*:*:*:*:* | ||
cpe:2.3:o:redhat:enterprise_linux_eus:7.3:*:*:*:*:*:*:* | ||
cpe:2.3:o:redhat:enterprise_linux_eus:7.4:*:*:*:*:*:*:* | ||
cpe:2.3:o:redhat:enterprise_linux_eus:7.5:*:*:*:*:*:*:* | ||
cpe:2.3:o:redhat:enterprise_linux_eus:7.6:*:*:*:*:*:*:* | ||
cpe:2.3:o:redhat:enterprise_linux_eus:7.7:*:*:*:*:*:*:* | ||
cpe:2.3:o:redhat:enterprise_linux_server:6.0:*:*:*:*:*:*:* | ||
cpe:2.3:o:redhat:enterprise_linux_server:7.0:*:*:*:*:*:*:* | ||
cpe:2.3:o:redhat:enterprise_linux_server_aus:7.2:*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page
References to Advisories, Solutions, and Tools
- http://openwall.com/lists/oss-security/2016/01/15/13
- http://rhn.redhat.com/errata/RHSA-2016-0465.html
- http://rhn.redhat.com/errata/RHSA-2016-0741.html
- http://www.openssh.com/txt/release-7.2
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.securityfocus.com/bid/84427
- http://www.securitytracker.com/id/1034705
- https://anongit.mindrot.org/openssh.git/commit/?id=ed4ce82dbfa8a3a3c8ea6fa0db113c71e234416c
- https://bugzilla.redhat.com/show_bug.cgi?id=1298741
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
- https://security.gentoo.org/glsa/201612-18
- http://openwall.com/lists/oss-security/2016/01/15/13
- http://rhn.redhat.com/errata/RHSA-2016-0465.html
- http://rhn.redhat.com/errata/RHSA-2016-0741.html
- http://www.openssh.com/txt/release-7.2
- http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
- http://www.securityfocus.com/bid/84427
- http://www.securitytracker.com/id/1034705
- https://anongit.mindrot.org/openssh.git/commit/?id=ed4ce82dbfa8a3a3c8ea6fa0db113c71e234416c
- https://bugzilla.redhat.com/show_bug.cgi?id=1298741
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
- https://security.gentoo.org/glsa/201612-18