6.9
MEDIUM
CVE-2015-6564
OpenSSH Use-after-free Privilege Escalation Vulnerability
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.

INFO

Published Date :

Aug. 24, 2015, 1:59 a.m.

Last Modified :

Dec. 13, 2022, 12:15 p.m.

Remotely Exploitable :

No

Impact Score :

10.0

Exploitability Score :

3.4
Public PoC/Exploit Available at Github

CVE-2015-6564 has a 7 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2015-6564 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Openbsd openssh

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

bulk scanning tool for 21 different CVE's for OpenSSH

Python

Updated: 3 weeks, 4 days ago
1 stars 0 fork 0 watcher
Born at : Aug. 25, 2024, 6:28 a.m. This repo has been linked 22 different CVEs too.

OpenSSH Vulnerabilities Scanner: Bulk Scanning Tool for 21 different OpenSSH CVEs.

Python

Updated: 3 weeks, 2 days ago
1 stars 2 fork 2 watcher
Born at : Aug. 24, 2024, 10:56 p.m. This repo has been linked 22 different CVEs too.

Bulk Scanning Tool for OpenSSH CVE-2024-6387, CVE-2024-6409, CVE-2006-5051, CVE-2008-4109, and 16 other CVEs.

Updated: 2 months, 1 week ago
0 stars 0 fork 0 watcher
Born at : July 11, 2024, 11:56 a.m. This repo has been linked 22 different CVEs too.

Bulk Scanning Tool for OpenSSH CVE-2024-6387, CVE-2006-5051 , CVE-2008-4109 and others.

openssh security-audit security-tools ssh ssh-server

Python

Updated: 2 weeks, 6 days ago
25 stars 6 fork 6 watcher
Born at : July 1, 2024, 8:45 p.m. This repo has been linked 21 different CVEs too.

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

Python

Updated: 1 year, 7 months ago
1 stars 0 fork 0 watcher
Born at : Sept. 23, 2021, 5:22 p.m. This repo has been linked 3 different CVEs too.

DC-2 is a purposely built vulnerable lab for the purpose of gaining experience in the world of penetration testing. It was designed to be a challenge for beginners, but just how easy it is will depend on your skills and knowledge, and your ability to learn. To successfully complete this challenge, you will require Linux skills, familiarity with the Linux command line and experience with basic penetration testing tools, such as the tools that can be found on Kali Linux, or Parrot Security OS.

Updated: 7 months, 3 weeks ago
2 stars 0 fork 0 watcher
Born at : June 3, 2021, 4:52 a.m. This repo has been linked 45 different CVEs too.

DC-1 is a purposely built vulnerable lab for the purpose of gaining experience in the world of penetration testing. It was designed to be a challenge for beginners, but just how easy it is will depend on your skills and knowledge, and your ability to learn.

Updated: 6 months, 1 week ago
2 stars 0 fork 0 watcher
Born at : May 30, 2021, 2:22 p.m. This repo has been linked 39 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2015-6564 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2015-6564 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • CVE Modified by [email protected]

    Dec. 13, 2022

    Action Type Old Value New Value
    Added Reference https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf [No Types Assigned]
  • CVE Modified by [email protected]

    Mar. 26, 2019

    Action Type Old Value New Value
    Added Reference https://www.broadcom.com/support/fibre-channel-networking/security-advisories/brocade-security-advisory-2019-764 [No Types Assigned]
  • CVE Modified by [email protected]

    Sep. 11, 2018

    Action Type Old Value New Value
    Added Reference https://lists.debian.org/debian-lts-announce/2018/09/msg00010.html [No Types Assigned]
  • CVE Modified by [email protected]

    Jan. 05, 2018

    Action Type Old Value New Value
    Added Reference http://rhn.redhat.com/errata/RHSA-2016-0741.html [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 22, 2016

    Action Type Old Value New Value
    Added Reference http://lists.opensuse.org/opensuse-security-announce/2015-09/msg00017.html [No Types Assigned]
    Added Reference http://lists.fedoraproject.org/pipermail/package-announce/2015-August/165170.html [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 08, 2016

    Action Type Old Value New Value
    Added Reference https://kc.mcafee.com/corporate/index?page=content&id=SB10136 [No Types Assigned]
  • CVE Modified by [email protected]

    Dec. 07, 2016

    Action Type Old Value New Value
    Added Reference https://security.gentoo.org/glsa/201512-04 [No Types Assigned]
  • CVE Modified by [email protected]

    Nov. 28, 2016

    Action Type Old Value New Value
    Added Reference http://www.securityfocus.com/bid/76317 [No Types Assigned]
  • CVE Modified by [email protected]

    Oct. 15, 2016

    Action Type Old Value New Value
    Added Reference http://www.oracle.com/technetwork/topics/security/linuxbulletinoct2015-2719645.html
    Added Reference http://www.oracle.com/technetwork/topics/security/bulletinjan2016-2867206.html
  • CVE Modified by [email protected]

    Oct. 04, 2016

    Action Type Old Value New Value
    Added Reference http://www.oracle.com/technetwork/topics/security/linuxbulletinapr2016-2952096.html
  • Modified Analysis by [email protected]

    Aug. 26, 2015

    Action Type Old Value New Value
    Added CPE Configuration Configuration 1 OR *cpe:2.3:a:openbsd:openssh:6.9:*:*:*:*:*:*:* (and previous)
    Added CVSS V2 (AV:L/AC:M/Au:N/C:C/I:C/A:C)
    Changed Reference Type http://www.openssh.com/txt/release-7.0 No Types Assigned http://www.openssh.com/txt/release-7.0 Advisory
    Added CWE CWE-264
  • Initial Analysis by [email protected]

    Aug. 24, 2015

    Action Type Old Value New Value
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2015-6564 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2015-6564 weaknesses.

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.04 }} 0.00%

score

0.08236

percentile

CVSS2 - Vulnerability Scoring System
Access Vector
Access Complexity
Authentication
Confidentiality
Integrity
Availability