CVE-2024-35235
CUPS Remote Privilege Escalation and Code Execution
Description
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.8 and earlier, when starting the cupsd server with a Listen configuration item pointing to a symbolic link, the cupsd process can be caused to perform an arbitrary chmod of the provided argument, providing world-writable access to the target. Given that cupsd is often running as root, this can result in the change of permission of any user or system files to be world writable. Given the aforementioned Ubuntu AppArmor context, on such systems this vulnerability is limited to those files modifiable by the cupsd process. In that specific case it was found to be possible to turn the configuration of the Listen argument into full control over the cupsd.conf and cups-files.conf configuration files. By later setting the User and Group arguments in cups-files.conf, and printing with a printer configured by PPD with a `FoomaticRIPCommandLine` argument, arbitrary user and group (not root) command execution could be achieved, which can further be used on Ubuntu systems to achieve full root command execution. Commit ff1f8a623e090dee8a8aadf12a6a4b25efac143d contains a patch for the issue.
INFO
Published Date :
June 11, 2024, 3:16 p.m.
Last Modified :
June 14, 2024, 3:15 a.m.
Source :
[email protected]
Remotely Exploitable :
No
Impact Score :
3.6
Exploitability Score :
0.8
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-2024-35235.
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).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2024-35235 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2024-35235 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.
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CVE Modified by [email protected]
Jun. 14, 2024
Action Type Old Value New Value Added Reference GitHub, Inc. https://lists.debian.org/debian-lts-announce/2024/06/msg00001.html [No types assigned] -
CVE Modified by [email protected]
Jun. 13, 2024
Action Type Old Value New Value Added Reference GitHub, Inc. http://www.openwall.com/lists/oss-security/2024/06/12/4 [No types assigned] Added Reference GitHub, Inc. http://www.openwall.com/lists/oss-security/2024/06/12/5 [No types assigned] -
CVE Received by [email protected]
Jun. 11, 2024
Action Type Old Value New Value Added Description OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.8 and earlier, when starting the cupsd server with a Listen configuration item pointing to a symbolic link, the cupsd process can be caused to perform an arbitrary chmod of the provided argument, providing world-writable access to the target. Given that cupsd is often running as root, this can result in the change of permission of any user or system files to be world writable. Given the aforementioned Ubuntu AppArmor context, on such systems this vulnerability is limited to those files modifiable by the cupsd process. In that specific case it was found to be possible to turn the configuration of the Listen argument into full control over the cupsd.conf and cups-files.conf configuration files. By later setting the User and Group arguments in cups-files.conf, and printing with a printer configured by PPD with a `FoomaticRIPCommandLine` argument, arbitrary user and group (not root) command execution could be achieved, which can further be used on Ubuntu systems to achieve full root command execution. Commit ff1f8a623e090dee8a8aadf12a6a4b25efac143d contains a patch for the issue. Added Reference GitHub, Inc. https://github.com/OpenPrinting/cups/security/advisories/GHSA-vvwp-mv6j-hw6f [No types assigned] Added Reference GitHub, Inc. https://github.com/OpenPrinting/cups/commit/ff1f8a623e090dee8a8aadf12a6a4b25efac143d [No types assigned] Added Reference GitHub, Inc. https://git.launchpad.net/ubuntu/+source/apparmor/tree/profiles/apparmor.d/abstractions/user-tmp#n21 [No types assigned] Added Reference GitHub, Inc. https://github.com/OpenPrinting/cups/blob/aba917003c8de55e5bf85010f0ecf1f1ddd1408e/cups/http-addr.c#L229-L240 [No types assigned] Added Reference GitHub, Inc. http://www.openwall.com/lists/oss-security/2024/06/11/1 [No types assigned] Added CWE GitHub, Inc. CWE-59 Added CWE GitHub, Inc. CWE-252 Added CVSS V3.1 GitHub, Inc. AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2024-35235 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-2024-35235
weaknesses.