CVE - CVE-2024-35235

CVE-ID
CVE-2024-35235	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://git.launchpad.net/ubuntu/+source/apparmor/tree/profiles/apparmor.d/abstractions/user-tmp#n21 URL:https://git.launchpad.net/ubuntu/+source/apparmor/tree/profiles/apparmor.d/abstractions/user-tmp#n21 MISC:https://github.com/OpenPrinting/cups/blob/aba917003c8de55e5bf85010f0ecf1f1ddd1408e/cups/http-addr.c#L229-L240 URL:https://github.com/OpenPrinting/cups/blob/aba917003c8de55e5bf85010f0ecf1f1ddd1408e/cups/http-addr.c#L229-L240 MISC:https://github.com/OpenPrinting/cups/commit/ff1f8a623e090dee8a8aadf12a6a4b25efac143d URL:https://github.com/OpenPrinting/cups/commit/ff1f8a623e090dee8a8aadf12a6a4b25efac143d MISC:https://github.com/OpenPrinting/cups/security/advisories/GHSA-vvwp-mv6j-hw6f URL:https://github.com/OpenPrinting/cups/security/advisories/GHSA-vvwp-mv6j-hw6f MLIST:[debian-lts-announce] 20240613 [SECURITY] [DLA 3826-1] cups security update URL:https://lists.debian.org/debian-lts-announce/2024/06/msg00001.html MLIST:[oss-security] 20240611 CVE-2024-35235 cups: Cupsd Listen arbitrary chmod 0140777 URL:http://www.openwall.com/lists/oss-security/2024/06/11/1 MLIST:[oss-security] 20240612 Re: CVE-2024-35235 cups: Cupsd Listen arbitrary chmod 0140777 URL:http://www.openwall.com/lists/oss-security/2024/06/12/4 MLIST:[oss-security] 20240613 Re: Re: CVE-2024-35235 cups: Cupsd Listen arbitrary chmod 0140777 URL:http://www.openwall.com/lists/oss-security/2024/06/12/5
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20240514	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240514)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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