Privilege escalation in Tenable Nessus - CVE-2021-20135
Published: November 1, 2021
Vulnerability identifier: #VU57847
CSH Severity: Low
CVSS v4: 8.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-20135
CWE-ID: CWE-264
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to Nessus does not properly impose security restrictions. A local administrator can run specific executables on the Nessus Agent host.
Affected software
Tenable Nessus
How to mitigate CVE-2021-20135
Install updates from vendor's website.
Tenable Nessus - update to 10.0.0