CVE-2021-32760
Containerd File Permission Changes Vulnerability
Description
containerd is a container runtime. A bug was found in containerd versions prior to 1.4.8 and 1.5.4 where pulling and extracting a specially-crafted container image can result in Unix file permission changes for existing files in the host’s filesystem. Changes to file permissions can deny access to the expected owner of the file, widen access to others, or set extended bits like setuid, setgid, and sticky. This bug does not directly allow files to be read, modified, or executed without an additional cooperating process. This bug has been fixed in containerd 1.5.4 and 1.4.8. As a workaround, ensure that users only pull images from trusted sources. Linux security modules (LSMs) like SELinux and AppArmor can limit the files potentially affected by this bug through policies and profiles that prevent containerd from interacting with specific files.
INFO
Published Date :
July 19, 2021, 9:15 p.m.
Last Modified :
Jan. 31, 2024, 1:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.4
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2021-32760 has a 2 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-2021-32760
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.
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-2021-32760.
| URL | Resource |
|---|---|
| https://github.com/containerd/containerd/releases/tag/v1.4.8 | Release Notes Third Party Advisory |
| https://github.com/containerd/containerd/releases/tag/v1.5.4 | Release Notes Third Party Advisory |
| https://github.com/containerd/containerd/security/advisories/GHSA-c72p-9xmj-rx3w | Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDMNDPJJTP3J5GOEDB66F6MGXUTRG3Y3/ | |
| https://security.gentoo.org/glsa/202401-31 |
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).
⚙ DevSecOps Kubernetes Playground ("A Hacker's Guide to Kubernetes")
Dockerfile Shell Ruby Smarty Jinja HCL
oshka is a tool for extracting nested CI/CD supply chains and executing commands.
github-actions security supply-chain
Makefile Go Dockerfile Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-32760 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-32760 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]
Jan. 31, 2024
Action Type Old Value New Value Added Reference GitHub, Inc. https://security.gentoo.org/glsa/202401-31 [No types assigned] -
CVE Modified by [email protected]
Nov. 07, 2023
Action Type Old Value New Value Added Reference GitHub, Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DDMNDPJJTP3J5GOEDB66F6MGXUTRG3Y3/ [No types assigned] Removed Reference GitHub, Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/DDMNDPJJTP3J5GOEDB66F6MGXUTRG3Y3/ -
Reanalysis by [email protected]
Oct. 25, 2022
Action Type Old Value New Value Removed CWE NIST CWE-668 Added CWE NIST CWE-732 -
Modified Analysis by [email protected]
Oct. 18, 2021
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/DDMNDPJJTP3J5GOEDB66F6MGXUTRG3Y3/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/DDMNDPJJTP3J5GOEDB66F6MGXUTRG3Y3/ Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Aug. 25, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/DDMNDPJJTP3J5GOEDB66F6MGXUTRG3Y3/ [No Types Assigned] -
Initial Analysis by [email protected]
Jul. 28, 2021
Action Type Old Value New Value Added CVSS V2 Metadata Victim must voluntarily interact with attack mechanism Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L Changed Reference Type https://github.com/containerd/containerd/releases/tag/v1.4.8 No Types Assigned https://github.com/containerd/containerd/releases/tag/v1.4.8 Release Notes, Third Party Advisory Changed Reference Type https://github.com/containerd/containerd/releases/tag/v1.5.4 No Types Assigned https://github.com/containerd/containerd/releases/tag/v1.5.4 Release Notes, Third Party Advisory Changed Reference Type https://github.com/containerd/containerd/security/advisories/GHSA-c72p-9xmj-rx3w No Types Assigned https://github.com/containerd/containerd/security/advisories/GHSA-c72p-9xmj-rx3w Third Party Advisory Added CWE NIST CWE-668 Added CPE Configuration OR *cpe:2.3:a:linuxfoundation:containerd:*:*:*:*:*:*:*:* versions up to (excluding) 1.4.8 *cpe:2.3:a:linuxfoundation:containerd:*:*:*:*:*:*:*:* versions from (including) 1.5.0 up to (excluding) 1.5.4
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-32760 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-2021-32760
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.15 }} 0.00%
score
0.49544
percentile