Exposed dangerous method or function in RPyC - CVE-2024-27758

Vulnerability identifier: #VU98515

CSH Severity: Medium

CVSS v4: 7.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2024-27758

CWE-ID: CWE-749

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote user to compromise the affected system.

The vulnerability exists due to exposure of a method that calls the attribute named __array__ for a client-provided netref. A remote user can send specially crafted data to the application and execute arbitrary code on the system.

RPyC
Fedora
python-rpyc

Install updates from vendor's website.

RPyC - update to 6.0.0
python-rpyc - update to 6.0.1-1.fc41

• https://gist.github.com/renbou/957f70d27470982994f12a1d70153d09
• https://github.com/tomerfiliba-org/rpyc/security/advisories/GHSA-h5cg-53g7-gqjw

• Remote code execution in RPyC
• Fedora 41 update for python-rpyc