CVE-2018-7169
Apache Shadow Privilege Escalation Vulnerability
Description
An issue was discovered in shadow 4.5. newgidmap (in shadow-utils) is setuid and allows an unprivileged user to be placed in a user namespace where setgroups(2) is permitted. This allows an attacker to remove themselves from a supplementary group, which may allow access to certain filesystem paths if the administrator has used "group blacklisting" (e.g., chmod g-rwx) to restrict access to paths. This flaw effectively reverts a security feature in the kernel (in particular, the /proc/self/setgroups knob) to prevent this sort of privilege escalation.
INFO
Published Date :
Feb. 15, 2018, 8:29 p.m.
Last Modified :
Oct. 3, 2019, 12:03 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
1.4
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2018-7169 has a 4 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2018-7169.
| URL | Resource |
|---|---|
| https://bugs.launchpad.net/ubuntu/+source/shadow/+bug/1729357 | Exploit Issue Tracking Third Party Advisory |
| https://security.gentoo.org/glsa/201805-09 | Third Party Advisory |
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).
None
Java
None
Java
A command line tool which provides an alternative interface to snyk test
snyk
Makefile Dockerfile Crystal Open Policy Agent
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2018-7169 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2018-7169 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 -
CWE Remap by [email protected]
Oct. 03, 2019
Action Type Old Value New Value Changed CWE CWE-254 CWE-732 -
Modified Analysis by [email protected]
Mar. 26, 2019
Action Type Old Value New Value Changed Reference Type https://bugs.launchpad.net/ubuntu/+source/shadow/+bug/1729357 Issue Tracking, Third Party Advisory https://bugs.launchpad.net/ubuntu/+source/shadow/+bug/1729357 Exploit, Issue Tracking, Third Party Advisory Changed Reference Type https://security.gentoo.org/glsa/201805-09 No Types Assigned https://security.gentoo.org/glsa/201805-09 Third Party Advisory -
CVE Modified by [email protected]
Oct. 21, 2018
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/201805-09 [No Types Assigned] -
Initial Analysis by [email protected]
Mar. 14, 2018
Action Type Old Value New Value Added CVSS V2 (AV:N/AC:L/Au:N/C:P/I:N/A:N) Added CVSS V3 AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N Changed Reference Type https://bugs.launchpad.net/ubuntu/+source/shadow/+bug/1729357 No Types Assigned https://bugs.launchpad.net/ubuntu/+source/shadow/+bug/1729357 Issue Tracking, Third Party Advisory Added CWE CWE-254 Added CPE Configuration OR *cpe:2.3:a:shadow_project:shadow:4.5:*:*:*:*:*:*:*
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2018-7169 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-2018-7169
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.08 }} 0.00%
score
0.33735
percentile