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Vulnerability Details : 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 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.
Publish Date : 2015-08-23 Last Update Date : 2018-09-11
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- CVSS Scores & Vulnerability Types

CVSS Score
1.9
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact Partial (Modification of some system files or information is possible, but the attacker does not have control over what can be modified, or the scope of what the attacker can affect is limited.)
Availability Impact None (There is no impact to the availability of the system.)
Access Complexity Medium (The access conditions are somewhat specialized. Some preconditions must be satistified to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s)
CWE ID 20

- Related OVAL Definitions

Title Definition Id Class Family
RHSA-2015:2088: openssh security, bug fix, and enhancement update (Moderate) oval:com.redhat.rhsa:def:20152088 unix
RHSA-2016:0741: openssh security, bug fix, and enhancement update (Moderate) oval:com.redhat.rhsa:def:20160741 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2015-6563

# Product Type Vendor Product Version Update Edition Language
1 OS Apple Mac Os X 10.11.0 Version Details Vulnerabilities
2 Application Openbsd Openssh 6.9 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Apple Mac Os X 1
Openbsd Openssh 1

- References For CVE-2015-6563

http://seclists.org/fulldisclosure/2015/Aug/54
FULLDISC 20150813 BFS-SA-2015-002: OpenSSH PAM Privilege Separation Vulnerabilities
http://www.openssh.com/txt/release-7.0 CONFIRM
https://github.com/openssh/openssh-portable/commit/d4697fe9a28dab7255c60433e4dd23cf7fce8a8b CONFIRM
http://lists.apple.com/archives/security-announce/2015/Oct/msg00005.html
APPLE APPLE-SA-2015-10-21-4
http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html
SUSE SUSE-SU-2015:1581
https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html
MLIST [debian-lts-announce] 20180910 [SECURITY] [DLA 1500-1] openssh security update
https://security.gentoo.org/glsa/201512-04
GENTOO GLSA-201512-04
https://security.netapp.com/advisory/ntap-20180201-0002/ CONFIRM
https://support.apple.com/HT205375 CONFIRM
http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html CONFIRM
http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html CONFIRM
http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html CONFIRM
http://www.securityfocus.com/bid/76317
BID 76317 OpenSSH PAM Support Multiple Remote Code Execution Vulnerabilities Release Date:2017-12-05
http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165170.html
FEDORA FEDORA-2015-13469
http://www.openwall.com/lists/oss-security/2015/08/22/1
MLIST [oss-security] 20150821 Re: CVE request - OpenSSH 6.9 PAM privilege separation vulnerabilities
http://rhn.redhat.com/errata/RHSA-2016-0741.html
REDHAT RHSA-2016:0741

- Metasploit Modules Related To CVE-2015-6563

There are not any metasploit modules related to this CVE entry (Please visit www.metasploit.com for more information)


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