sshd in OpenSSH before 7.4, when privilege separation is not used, creates forwarded Unix-domain sockets as root, which might allow local users to gain privileges via unspecified vectors, related to serverloop.c.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Openssh | Openbsd | * | 7.3 (including) |
| Openssh | Ubuntu | esm-infra/xenial | * |
| Openssh | Ubuntu | upstream | * |
| Openssh | Ubuntu | vivid/stable-phone-overlay | * |
| Openssh | Ubuntu | vivid/ubuntu-core | * |
| Openssh | Ubuntu | xenial | * |
| Openssh | Ubuntu | yakkety | * |
References
- http://packetstormsecurity.com/files/140262/OpenSSH-Local-Privilege-Escalation.html
- http://www.openwall.com/lists/oss-security/2016/12/19/2
- http://www.securityfocus.com/bid/94972
- http://www.securitytracker.com/id/1037490
- http://www.slackware.com/security/viewer.php?l=slackware-security\u0026y=2016\u0026m=slackware-security.647637
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1010
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- https://github.com/openbsd/src/commit/c76fac666ea038753294f2ac94d310f8adece9ce
- https://security.FreeBSD.org/advisories/FreeBSD-SA-17:01.openssh.asc
- https://security.netapp.com/advisory/ntap-20171130-0002/
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03818en_us
- https://www.exploit-db.com/exploits/40962/
- https://www.openssh.com/txt/release-7.4
- http://packetstormsecurity.com/files/140262/OpenSSH-Local-Privilege-Escalation.html
- http://www.openwall.com/lists/oss-security/2016/12/19/2
- http://www.securityfocus.com/bid/94972
- http://www.securitytracker.com/id/1037490
- http://www.slackware.com/security/viewer.php?l=slackware-security\u0026y=2016\u0026m=slackware-security.647637
- https://bugs.chromium.org/p/project-zero/issues/detail?id=1010
- https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
- https://github.com/openbsd/src/commit/c76fac666ea038753294f2ac94d310f8adece9ce
- https://security.FreeBSD.org/advisories/FreeBSD-SA-17:01.openssh.asc
- https://security.netapp.com/advisory/ntap-20171130-0002/
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US\u0026docId=emr_na-hpesbux03818en_us
- https://www.exploit-db.com/exploits/40962/
- https://www.openssh.com/txt/release-7.4