Vulnerability CVE-2018-16758
Published: 2018-10-10

Description:
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.

Type:

CWE-306

 (Missing Authentication for Critical Function)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:N/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
4.3/10
2.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None
Affected software
Tinc-vpn -> TINC 
Debian -> Debian linux 

 References:
http://tinc-vpn.org/security/
http://www.tinc-vpn.org/git/browse?p=tinc;a=commit;h=e97943b7cc9c851ae36f5a41e2b6102faa74193f
https://www.debian.org/security/2018/dsa-4312
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