by Kastro
Paper/Archive/CVE-2022-36436

CVE-2022-36436

osuosl twisted_vnc_authentication_proxy — OSU Open Source Lab VNCAuthProxy through 1.1.1 is affected by an vncap/vnc/protocol.py VNCServerAuthenticator authentication-bypass vulne…

EPSS 2%CVSS 9.8
critical.is priorityof 100
46
CVSS 9.8 (NVD, ADP agree)9.8 / 10 × 3029.4Not in CISA KEV+300.0EPSS percentile 81.4.814 × 2016.3No public exploit+100.0SSVC exploitation: none+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
n/an/a–CNA
twisted_vnc_authentication_proxy≤ 1.1.1–CISA-ADP

Scores by source

CISA ADP9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CISA ADPSSVCExploitation: none · Automatable: yes · Technical impact: total

References

refgithub.com/osuosl/twisted_vncauthproxy/tree/release/1.1.1refpypi.org/project/VNCAuthProxyrefgithub.com/osuosl/twisted_vncauthproxy/commit/edc149af29242178091b2d6fcd42c3ef0851644brefcert.grnet.gr/en/blog/cve-2022-36436-twisted-vnc-authentication-proxy-authentication-bypass