Missing Authentication for Critical Function - CVE-2018-16758
Published: October 10, 2018 / Updated: August 3, 2020
Vulnerability identifier: #VU33042
CSH Severity: Medium
CVSS v4: 8.2 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-16758
CWE-ID: CWE-306
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to gain access to sensitive information.
Missing message authentication in the meta-protocol in Tinc VPN version 1.0.34 and earlier allows a man-in-the-middle attack to disable the encryption of VPN packets.
Affected software
tinc (Alpine package)
tinc
Fedora
tinc
Fedora
How to mitigate CVE-2018-16758
Install update from vendor's website.
tinc (Alpine package) - update to 1.0.35-r0
tinc - addressed in versions 1.0.35-1.el7, 1.0.35-1.fc28, 1.0.35-1.fc29
tinc - addressed in versions 1.0.35-1.el7, 1.0.35-1.fc28, 1.0.35-1.fc29