CVE-2018-20764 describes a critical buffer overflow vulnerability in HelpSystems tcpcrypt on Linux, affecting BoKS encrypted telnet up to version 6.7.1. Due to tcpcrypt being setuid, successful exploitation allows for privilege escalation. With a CVSS score of 9.8 (Critical) and a FAUCET Risk Score of 93/100, this vulnerability presents a significant risk due to its network-based attack vector, low attack complexity, and high impact on confidentiality, integrity, and availability. While there are no known active exploits, Metasploit modules, or ExploitDB entries, the vulnerability has garnered substantial community discussion, indicating awareness and potential for future exploitation.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 6.6.0, <= 6.7.1CPE matchmatch criteria | cpe:2.3:a:helpsystems:boks:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.0
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.