CVE-2024-47176 – cups-browsed binds to `INADDR_ANY:631`, trusting any packet from any source

https://notcve.org/view.php?id=CVE-2024-47176

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. Due to the service binding to `*:631 ( INADDR_ANY )`, multiple bugs in `cups-browsed` can be exploited in sequence to introduce a malicious printer to the system. This chain of exploits ultimately enables an attacker to execute arbitrary commands remotely on the target machine without authentication when a print job is started. This poses a significant security risk over the network. Notably, this vulnerability is particularly concerning as it can be exploited from the public internet, potentially exposing a vast number of systems to remote attacks if their CUPS services are enabled. • https://github.com/pearlmansara/CVE-2024-47176-CUPS https://github.com/workabhiwin09/CVE-2024-47176 https://github.com/tonyarris/CVE-2024-47176-Scanner https://github.com/mr-r3b00t/CVE-2024-47176 https://github.com/aytackalinci/CVE-2024-47176 https://github.com/nma-io/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 • CWE-20: Improper Input Validation CWE-749: Exposed Dangerous Method or Function CWE-940: Improper Verification of Source of a Communication Channel CWE-1327: Binding to an Unrestricted IP Address •