Improper control of interaction frequency in SonicOS - CVE-2020-5141
Published: October 12, 2020 / Updated: October 16, 2020
Vulnerability identifier: #VU47690
CSH Severity: Medium
CVSS v4: 6.9 [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]
CVE-ID: CVE-2020-5141
CWE-ID: CWE-799
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
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.
Affected software
SonicOS
How to mitigate CVE-2020-5141
Install updates from vendor's website.
SonicOS - addressed in versions 5.9.2.7-5n, 5.9.2.13-7n, 6.0.5.3-94o, 6.5.1.12-1n, 6.5.4.v-21s-987, 6.5.4.7-83n, 7 7.0.0.0-2