Published: 24/08/2015 Updated: 13/12/2022

CVSS v2 Base Score: 6.9 | Impact Score: 10 | Exploitability Score: 3.4

VMScore: 614

Vector: AV:L/AC:M/Au:N/C:C/I:C/A:C

Use-after-free vulnerability in the mm_answer_pam_free_ctx function in monitor.c in sshd in OpenSSH prior to 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.

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openbsd openssh

Synopsis Moderate: openssh security, bug fix, and enhancement update Type/Severity Security Advisory: Moderate Topic Updated openssh packages that fix multiple security issues, several bugs,and add various enhancements are now available for Red Hat EnterpriseLinux 7Red Hat Product Security has rated this u ...

Debian Bug report logs - #795711 openssh: CVE-2015-6563 CVE-2015-6564 Package: src:openssh; Maintainer for src:openssh is Debian OpenSSH Maintainers <debian-ssh@listsdebianorg>; Reported by: Moritz Muehlenhoff <jmm@debianorg> Date: Sun, 16 Aug 2015 12:04:21 UTC Severity: important Tags: security Found in version ...

The monitor component in sshd in OpenSSH before 70 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 monitorc ...

A flaw was found in the way OpenSSH handled PAM authentication when using privilege separation An attacker with valid credentials on the system and able to fully compromise a non-privileged pre-authentication process using a different flaw could use this flaw to authenticate as other users It was discovered that the OpenSSH sshd daemon did not ch ...

A use-after-free flaw was found in OpenSSH An attacker able to fully compromise a non-privileged pre-authentication process using a different flaw could possibly cause sshd to crash or execute arbitrary code with root privileges ...

Contains scripts which may help to identify susceptiblea and vulnerable hosts or services

manual-detection Contains scripts which may help to identify susceptiblea and vulnerable hosts or services test_openssh_vulnspy A python script which test for both CVE-2015-6563 & CVE-2015-6564 (judging by the OpenSSH version) Should work with both python2(7) and python3 Requirements: None Tested python versions: 2716 373 test_php_vulns A python script which

CWE-264 https://github.com/openssh/openssh-portable/commit/5e75f5198769056089fb06c4d738ab0e5abc66f7 http://seclists.org/fulldisclosure/2015/Aug/54 http://www.openwall.com/lists/oss-security/2015/08/22/1 http://www.openssh.com/txt/release-7.0 http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html http://www.securityfocus.com/bid/76317 https://security.gentoo.org/glsa/201512-04 https://kc.mcafee.com/corporate/index?page=content&id=SB10136 http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165170.html http://rhn.redhat.com/errata/RHSA-2016-0741.html https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-764 https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf https://access.redhat.com/errata/RHSA-2015:2088 https://nvd.nist.gov https://github.com/CyCognito/manual-detection https://www.cisa.gov/uscert/ics/advisories/icsa-22-349-21 https://access.redhat.com/security/cve/cve-2015-6564 https://alas.aws.amazon.com/ALAS-2015-592.html

CVE-2015-6564

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