tinc before 1.0.30 has a broken authentication protocol, without even a partial mitigation.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - tinc before 1.0.30 has a broken authentication protocol, without even a partial mitigation.
    (CVE-2018-16737)

Note that Nessus relies on the presence of the package as reported by the vendor.

There are packages installed that are affected by multiple vulnerabilities referenced in the following CVEs:

  - tinc before 1.0.30 has a broken authentication protocol, without even a partial mitigation.
    (CVE-2018-16737)

  - tinc 1.0.30 through 1.0.34 has a broken authentication protocol, although there is a partial mitigation.
    This is fixed in 1.1. (CVE-2018-16738)

  - 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. (CVE-2018-16758)

Security fix for CVE-2018-16737, CVE-2018-16738, CVE-2018-16758

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

tinc-vpn.org reports :

The authentication protocol allows an oracle attack that could potentially be exploited.

If a man-in-the-middle has intercepted the TCP connection it might be able to force plaintext UDP packets between two nodes for up to a PingInterval period.

ID	Name	Product	Family	Severity
257109	Linux Distros Unpatched Vulnerability : CVE-2018-16737	Nessus	Misc.	medium
424551	Alpine: multiple tinc packages: security update to 1.0.35-r0	Tenable Cloud Security	Alpine Linux Local Security Checks	medium
424551	Alpine: multiple tinc packages: security update to 1.0.35-r0	Tenable Self-Hosted Container Security	Alpine Linux Local Security Checks	medium
120712	Fedora 29 : tinc (2018-afae5e8438)	Nessus	Fedora Local Security Checks	medium
120335	Fedora 28 : tinc (2018-31c2a0b2ea)	Nessus	Fedora Local Security Checks	medium
118024	FreeBSD : tinc -- Buffer overflow (a4eb38ea-cc06-11e8-ada4-408d5cf35399)	Nessus	FreeBSD Local Security Checks	medium

Detections

Analytics

CVE-2018-16737

medium

Tenable Plugins

medium

medium

medium

medium

medium

medium