6.8 Medium
AI Score
Confidence
Low
6.9 Medium
CVSS2
Access Vector
LOCAL
Access Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:L/AC:M/Au:N/C:C/I:C/A:C
0.0004 Low
EPSS
Percentile
8.1%
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.
Use-after-free vulnerability in the mm_answer_pam_free_ctx function in monitor.c in sshd in OpenSSH before 7.0 on non-OpenBSD platforms might allow local users to gain privileges by leveraging control of the sshd uid to send an unexpectedly early MONITOR_REQ_PAM_FREE_CTX request.
Impact
A locally authenticated user can employ a highly complex exploit to conduct impersonation attacks by using an OpenSSH flaw.
CPE | Name | Operator | Version |
---|---|---|---|
big-ip afm | eq | 11.3.0 | |
big-ip afm | eq | 11.4.0 | |
big-ip afm | eq | 11.4.1 | |
big-ip afm | eq | 11.5.0 | |
big-ip afm | eq | 11.5.1 | |
big-ip afm | eq | 11.5.2 | |
big-ip afm | eq | 11.5.3 | |
big-ip afm | eq | 11.5.4 | |
big-ip afm | eq | 11.5.5 | |
big-ip afm | eq | 11.5.6 |