Improper Verification of Source of a Communication Channel Affecting cups-filters-libs package, versions <0:1.20.0-24.el8_4.2
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL8-CUPSFILTERSLIBS-8161348
- published3 Oct 2024
- disclosed26 Sept 2024
Introduced: 26 Sep 2024
CVE-2024-47176 (opens in a new tab)How to fix?
Upgrade RHEL:8 cups-filters-libs to version 0:1.20.0-24.el8_4.2 or higher.
This issue was patched in RHSA-2024:7504.
NVD Description
Note: Versions mentioned in the description apply only to the upstream cups-filters-libs package and not the cups-filters-libs package as distributed by RHEL.
See How to fix? for RHEL:8 relevant fixed versions and status.
CUPS is a standards-based, open-source printing system, and cups-browsed contains network printing functionality including, but not limited to, auto-discovering print services and shared printers. cups-browsed binds to INADDR_ANY:631, causing it to trust any packet from any source, and can cause the Get-Printer-Attributes IPP request to an attacker controlled URL. When combined with other vulnerabilities, such as CVE-2024-47076, CVE-2024-47175, and CVE-2024-47177, an attacker can execute arbitrary commands remotely on the target machine without authentication when a malicious printer is printed to.
References
- https://access.redhat.com/security/cve/CVE-2024-47176
- https://github.com/OpenPrinting/cups-browsed/blob/master/daemon/cups-browsed.c#L13992
- https://github.com/OpenPrinting/cups-browsed/security/advisories/GHSA-rj88-6mr5-rcw8
- https://github.com/OpenPrinting/cups-filters/security/advisories/GHSA-p9rh-jxmq-gq47
- https://github.com/OpenPrinting/libcupsfilters/security/advisories/GHSA-w63j-6g73-wmg5
- https://github.com/OpenPrinting/libppd/security/advisories/GHSA-7xfx-47qg-grp6
- https://www.cups.org
- https://www.evilsocket.net/2024/09/26/Attacking-UNIX-systems-via-CUPS-Part-I
- http://www.openwall.com/lists/oss-security/2024/09/27/6
- https://github.com/OpenPrinting/cups-browsed/commit/1debe6b140c37e0aa928559add4abcc95ce54aa2
- https://github.com/projectdiscovery/nuclei-templates/blob/main/javascript/cves/2024/CVE-2024-47176.yaml