RCE in Linuxfoundation Cups-Filters
CVE-2023-24805
cups-filters contains backends, filters, and other software required to get the cups printing service working on operating systems other than macos. If you use the Backend Error Handler (beh) to create an accessible network printer, this security vulnerability can cause remote code execution. `beh.c` contains the line `retval = system(cmdline) >> 8;` which calls the `system` command with the operand `cmdline`. `cmdline` contains multiple user controlled, unsanitized values. As a result an attacker with network access to the hosted print server can exploit this vulnerability to inject system commands which are executed in the context of the running server. This issue has been addressed in commit `8f2740357` and is expected to be bundled in the next release. Users are advised to upgrade when possible and to restrict access to network printers in the meantime.
Vulnerability class: Command Injection (OS Command Injection)
EPSS: 0.037 (88.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Linuxfoundation Cups-filters — versions 2.0
- Openprinting Cups-filters — versions <= 2.0rc1
- Debian Debian_linux — versions 10.0, 11.0
- Fedoraproject Fedora — versions 37, 38
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM, Exploit, Vendor Advisory)
- security-advisories@github.com (Patch, x_refsource_MISC)
- security-advisories@github.com (Mailing List, Release Notes)
- security-advisories@github.com (Mailing List, Third Party Advisory)
- security-advisories@github.com (Third Party Advisory)
- security-advisories@github.com (Mailing List, Release Notes)
- security-advisories@github.com
Frequently asked questions
- What is CVE-2023-24805?
- CVE-2023-24805 is a high-severity vulnerability in Linuxfoundation Cups-Filters, classified under OS Command Injection. CVSS score: 8.8/10. Published 2023-05-17.
- How severe is CVE-2023-24805?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2023-24805 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.