#VU47690 Improper control of interaction frequency in SonicOS - CVE-2020-5141

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Main Vulnerability Database Vulnerabilities #VU47690

#VU47690 Improper control of interaction frequency in SonicOS - CVE-2020-5141

Published: October 12, 2020 / Updated: October 16, 2020


Vulnerability identifier: #VU47690
Vulnerability risk: Medium
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2020-5141
CWE-ID: CWE-799
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
SonicOS
Software vendor:
SonicWall

Description

The vulnerability allows a remote attacker to perform a brute-force attack.

The vulnerability exists due to usage of predictable Virtual Assist ticket identifiers and lack of anti-automation protection. A remote non-authenticated attacker can brute-force the Virtual Assist ticket ID in the firewall SSLVPN service.


Remediation

Install updates from vendor's website.

External links