CVE-2019-17662

ThinVNC 1.0b1 is vulnerable to arbitrary file read, which leads to a compromise of the VNC server. The vulnerability exists even when authentication is turned on during the deployment of the VNC server. The password for authentication is stored in cleartext in a file that can be read via a ../../ThinVnc.ini directory traversal attack vector.

• CWE-22
• CWE-522

• http://packetstormsecurity.com/files/154896/ThinVNC-1.0b1-Authentication-Bypass.htmlExploit, Third Party Advisory, VDB Entry
• https://github.com/bewest/thinvnc/issues/5Third Party Advisory
• https://github.com/shashankmangal2/Exploits/blob/master/ThinVNC-RemoteAccess/POC.pyBroken Link
• https://redteamzone.com/ThinVNC/Exploit, Third Party Advisory
• http://packetstormsecurity.com/files/154896/ThinVNC-1.0b1-Authentication-Bypass.htmlExploit, Third Party Advisory, VDB Entry
• https://github.com/bewest/thinvnc/issues/5Third Party Advisory
• https://github.com/shashankmangal2/Exploits/blob/master/ThinVNC-RemoteAccess/POC.pyBroken Link
• https://redteamzone.com/ThinVNC/Exploit, Third Party Advisory

Published

Oct 16, 2019

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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