CVE-2016-1908 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 tr...
CriticalCVSS 9.8
EPSS 13.7%
- Published
- Updated
- Exploit status
- No public exploit known
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.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| debian/openssh(Debian:12) | < 1:7.2p1-1 | 1:7.2p1-1 |
| debian/openssh(Debian:13) | < 1:7.2p1-1 | 1:7.2p1-1 |
| debian/openssh(Debian:14) | < 1:7.2p1-1 | 1:7.2p1-1 |
| OpenBSD openssh | < 7.2 | 7.2 |
| debian linux | = 8.0 | No fix listed |
| oracle linux | = 6 | No fix listed |
| oracle linux | = 7 | No fix listed |
| redhat enterprise linux desktop | = 6.0 | No fix listed |
| redhat enterprise linux desktop | = 7.0 | No fix listed |
| redhat enterprise linux eus | = 7.2 | No fix listed |
| redhat enterprise linux eus | = 7.3 | No fix listed |
| redhat enterprise linux eus | = 7.4 | No fix listed |
| redhat enterprise linux eus | = 7.5 | No fix listed |
| redhat enterprise linux eus | = 7.6 | No fix listed |
| redhat enterprise linux eus | = 7.7 | No fix listed |
| redhat enterprise linux server | = 6.0 | No fix listed |
| redhat enterprise linux server | = 7.0 | No fix listed |
| redhat enterprise linux server aus | = 7.2 | No fix listed |
| redhat enterprise linux server aus | = 7.3 | No fix listed |
| redhat enterprise linux server aus | = 7.4 | No fix listed |
| redhat enterprise linux server aus | = 7.6 | No fix listed |
| redhat enterprise linux server aus | = 7.7 | No fix listed |
| redhat enterprise linux server tus | = 7.2 | No fix listed |
| redhat enterprise linux server tus | = 7.3 | No fix listed |
| redhat enterprise linux server tus | = 7.6 | No fix listed |
Show 3 more
| redhat enterprise linux server tus | = 7.7 | No fix listed |
| redhat enterprise linux workstation | = 6.0 | No fix listed |
| redhat enterprise linux workstation | = 7.0 | No fix listed |
References
- security-tracker.debian.org vendor-advisory
- [oss-security] 20160115 Re: Qualys Security Advisory - Roaming through the OpenSSH client: CVE-2016-0777 and CVE-2016-0778 mailing-list third-party-advisory
- RHSA-2016:0465 third-party-advisory vendor-advisory
- RHSA-2016:0741 third-party-advisory vendor-advisory
- www.openssh.com release-notes vendor-advisory
- www.oracle.com third-party-advisory
- 84427 third-party-advisory vdb-entry
- 1034705 broken-link third-party-advisory vdb-entry
- anongit.mindrot.org patch third-party-advisory
- bugzilla.redhat.com issue-tracking patch third-party-advisory
- cert-portal.siemens.com
- [debian-lts-announce] 20180910 [SECURITY] [DLA 1500-1] openssh security update mailing-list third-party-advisory
- GLSA-201612-18 third-party-advisory vendor-advisory