Login Request a demo
Medium severity · published Aug 24, 2015
CVE-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…
6.4
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Local
Complexity
High
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 32% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MO
Mac OS X · Apple
through 10.11.0 · source: NVD
OP
Openssh · Openbsd
through 6.9 · source: NVD
Affected product
MO
Mac OS X
Apple
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2015-6563
CVE.org
https://www.cve.org/CVERecord?id=CVE-2015-6563
lists.apple.com
http://lists.apple.com/archives/security-announce/2015/Oct/msg00005.html
lists.fedoraproject.org
http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165170.html
lists.opensuse.org
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html
rhn.redhat.com
http://rhn.redhat.com/errata/RHSA-2016-0741.html
seclists.org
http://seclists.org/fulldisclosure/2015/Aug/54
Vendor Advisory
http://www.openssh.com/txt/release-7.0
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