Description
The monitor component in sshd in OpenSSH before 7.0 on non-OpenBSD platforms accepts extraneous username data in MONITOR_REQ_PAM_INIT_CTX requests, which allows local users to conduct impersonation attacks by leveraging any SSH login access in conjunction with control of the sshd uid to send a crafted MONITOR_REQ_PWNAM request, related to monitor.c and monitor_wrap.c.
References (18)
Core 18
Core References
Vendor Advisory
https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
Mailing List mailing-list
http://www.openwall.com/lists/oss-security/2015/08/22/1
Mailing List, Third Party Advisory vendor-advisory
http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165170.html
Mailing List vendor-advisory
http://lists.apple.com/archives/security-announce/2015/Oct/msg00005.html
Third Party Advisory vendor-advisory
https://security.gentoo.org/glsa/201512-04
Mailing List vendor-advisory
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html
Vendor Advisory
http://www.openssh.com/txt/release-7.0
Third Party Advisory, VDB Entry vdb-entry
http://www.securityfocus.com/bid/76317
Vendor Advisory vendor-advisory
http://rhn.redhat.com/errata/RHSA-2016-0741.html
Mailing List mailing-list
http://seclists.org/fulldisclosure/2015/Aug/54
Mailing List mailing-list
https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
Various Sources
https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-766
Vendor Advisory
https://support.apple.com/HT205375
Vendor Advisory
https://security.netapp.com/advisory/ntap-20180201-0002/
Scores
EPSS
0.0008
EPSS Percentile
22.4%
Details
CWE
CWE-20
Status
published
Products (2)
apple/mac_os_x
< 10.11.0
openbsd/openssh
< 6.9
Published
Aug 24, 2015
Tracked Since
Feb 18, 2026