CVE Vulnerabilities

CVE-2020-13872

Improper Restriction of Excessive Authentication Attempts

Published: Jun 09, 2020 | Modified: Jun 12, 2020
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
3.3 LOW
AV:A/AC:L/Au:N/C:P/I:N/A:N
RedHat/V2
RedHat/V3
Ubuntu

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.

Weakness

The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it more susceptible to brute force attacks.

Affected Software

Name Vendor Start Version End Version
Royal_ts Royalapps * 5.0 (excluding)

Potential Mitigations

  • Common protection mechanisms include:

  • Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.

  • Consider using libraries with authentication capabilities such as OpenSSL or the ESAPI Authenticator. [REF-45]

References