CVE-2022-36436

描述

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.

如何修補 CVE-2022-36436

要修補 CVE-2022-36436,請將受影響套件升級到下列已修補版本。

• —升級至 1.2.0 或更新版本
• —升級至 edc149af29242178091b2d6fcd42c3ef0851644b 或更新版本

CVE-2022-36436 正在被利用嗎?

低 — EPSS 為 1.8%,目前沒有觀察到大規模利用活動。

受影響套件(2)

• from 0, < 1.2.0
• from 0, < edc149af29242178091b2d6fcd42c3ef0851644b | from 0, < 1.2.0

CVSS 分數

參考連結(10)

• ADVISORYcert.grnet.gr/en/blog/cve-2022-36436-twisted-vnc-authentication-proxy-authentication-bypass/
• ADVISORYgithub.com/advisories/GHSA-237r-mx84-7x8c
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2022-36436
• PATCHgithub.com/osuosl/twisted_vncauthproxy