Vulnerability CVE-2020-13872
Published: 2020-06-09

Description:
Royal TS before 5 has a 0.0.0.0 listener, which makes it easier for attackers to bypass tunnel authentication via a brute-force approach.

See advisories in our WLB2 database:
Topic
Author
Date
High
RoyalTS SSH Tunnel Authentication Bypass
Michele Toccagni
10.06.2020

Type:

CWE-307

 (Improper Restriction of Excessive Authentication Attempts)

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

CVSS Base Score
Impact Subscore
Exploitability Subscore
3.3/10
2.9/10
6.5/10
Exploit range
Attack complexity
Authentication
Adjacent network
Low
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
None
None

 References:
http://packetstormsecurity.com/files/158000/RoyalTS-SSH-Tunnel-Authentication-Bypass.html
http://seclists.org/fulldisclosure/2020/Jun/14
https://hacktips.it/royalts-ssh-tunnel-authentication-bypass/
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