CVE-2015-6563

Published: Aug 24, 2015Modified: May 27, 2026

6.4

Vector

CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H

Exploitability: 0.5 / Impact: 5.9

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

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.

Affected (2)

Products: Openbsd: Openssh · Apple: Mac Os X

1 product

1 product

Configuration A

1 vulnerable

Vulnerable Software	Affected Versions
Openbsd Openssh	Up to 6.9

Configuration B

1 vulnerable

Vulnerable Software	Affected Versions
Apple Mac Os X	Up to 10.11.0

Related CWEs

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.

References (36)

http://lists.apple.com/archives/security-announce/2015/Oct/msg00005.html

Source: cve@mitre.org

http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165170.html

Source: cve@mitre.org

http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html

Source: cve@mitre.org

http://rhn.redhat.com/errata/RHSA-2016-0741.html

Source: cve@mitre.org

http://seclists.org/fulldisclosure/2015/Aug/54

Source: cve@mitre.org

http://www.openssh.com/txt/release-7.0

Source: cve@mitre.org

Vendor Advisory

http://www.openwall.com/lists/oss-security/2015/08/22/1

Source: cve@mitre.org

http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html

Source: cve@mitre.org

http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html

Source: cve@mitre.org

http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html

Source: cve@mitre.org

http://www.securityfocus.com/bid/76317

Source: cve@mitre.org

https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

Source: cve@mitre.org

https://github.com/openssh/openssh-portable/commit/d4697fe9a28dab7255c60433e4dd23cf7fce8a8b

Source: cve@mitre.org

https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html

Source: cve@mitre.org

https://security.gentoo.org/glsa/201512-04

Source: cve@mitre.org

https://security.netapp.com/advisory/ntap-20180201-0002/

Source: cve@mitre.org

https://support.apple.com/HT205375

Source: cve@mitre.org

https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-766

Source: cve@mitre.org

http://lists.apple.com/archives/security-announce/2015/Oct/msg00005.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165170.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://rhn.redhat.com/errata/RHSA-2016-0741.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://seclists.org/fulldisclosure/2015/Aug/54

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.openssh.com/txt/release-7.0

Source: af854a3a-2127-422b-91ae-364da2661108

Vendor Advisory

http://www.openwall.com/lists/oss-security/2015/08/22/1

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html

Source: af854a3a-2127-422b-91ae-364da2661108

http://www.securityfocus.com/bid/76317

Source: af854a3a-2127-422b-91ae-364da2661108

https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf

Source: af854a3a-2127-422b-91ae-364da2661108

https://github.com/openssh/openssh-portable/commit/d4697fe9a28dab7255c60433e4dd23cf7fce8a8b

Source: af854a3a-2127-422b-91ae-364da2661108

https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html

Source: af854a3a-2127-422b-91ae-364da2661108

https://security.gentoo.org/glsa/201512-04

Source: af854a3a-2127-422b-91ae-364da2661108

https://security.netapp.com/advisory/ntap-20180201-0002/

Source: af854a3a-2127-422b-91ae-364da2661108

https://support.apple.com/HT205375

Source: af854a3a-2127-422b-91ae-364da2661108

https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-766

Source: af854a3a-2127-422b-91ae-364da2661108

Timeline

No history available yet.