CVE-2022-36436

CRITICAL

OSU Open Source Lab VNCAuthProxy <1.1.1 - Auth Bypass

Title source: llm
STIX 2.1

Description

OSU Open Source Lab VNCAuthProxy through 1.1.1 is affected by an vncap/vnc/protocol.py VNCServerAuthenticator authentication-bypass vulnerability that could allow a malicious actor to gain unauthorized access to a VNC session or to disconnect a legitimate user from a VNC session. A remote attacker with network access to the proxy server could leverage this vulnerability to connect to VNC servers protected by the proxy server without providing any authentication credentials. Exploitation of this issue requires that the proxy server is currently accepting connections for the target VNC server.

Scores

CVSS v3 9.8
EPSS 0.0164
EPSS Percentile 73.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable yes
Technical Impact total

Details

CWE
CWE-287
Status published
Products (2)
osuosl/twisted_vnc_authentication_proxy < 1.2.0
pypi/vncauthproxy 0 - 1.2.0PyPI
Published Sep 14, 2022
Tracked Since Feb 18, 2026