Arbitrary Code Execution

2024-03-0707:10:43

Veracode Vulnerability Database

sca.analysiscenter.veracode.com

rpyc

vulnerability

handling

client-provided netref

remote code execution

CVSS3

8.4

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

7.8

Confidence

Low

EPSS

Percentile

9.0%

JSON

RPyC is vulnerable to arbitrary code execution. The vulnerability is due to a flaw in the handling of the _array_ attribute specifically when the server-side exposes a method that calls the attribute __array__ for a client provided netref (e.g., np.array(client_netref)). A remote attacker can exploit this by providing a crafted script to the _array_ attribute resulting in remote code execution.