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CVE-2015-6564

Description

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.

POC

Reference

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

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

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

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

- https://kc.mcafee.com/corporate/index?page=content&id=SB10136

Github

- https://github.com/CyCognito/manual-detection

- https://github.com/Live-Hack-CVE/CVE-2015-6564

- https://github.com/Maribel0370/Nebula-io

- https://github.com/bigb0x/CVE-2024-6387

- https://github.com/bigb0x/OpenSSH-Scanner

- https://github.com/edsonjt81/https-github.com-gotr00t0day-OpenSSH-Scanner

- https://github.com/lekctut/sdb-hw-13-01

- https://github.com/pedr0alencar/vlab-metasploitable2

- https://github.com/ryanalieh/openSSH-scanner

- https://github.com/vshaliii/DC-1-Vulnhub-Walkthrough

- https://github.com/vshaliii/DC-2-Vulnhub-Walkthrough