CVSS 3.1
6.4 mediumCVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:HCVE-2015-6563
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.
Severity
- EPSS
- 0.4% chance of exploitation in the next 30 days; higher than 32% of CVEs (scores of 2026-10-31)
- CWE
- CWE-20
- Published
- Modified
- Record from
- the NVD, synced
Affected
- apple:mac_os_x
- openbsd:openssh
References
- http://lists.apple.com/archives/security-announce/2015/Oct/msg00005.html
- http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165170.html
- http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html
- http://rhn.redhat.com/errata/RHSA-2016-0741.html
- http://seclists.org/fulldisclosure/2015/Aug/54