CVE-2020-5793 Path traversal in Tenable Nessus for Windows and Tenable Nessus Agent for Windows
An authenticated local attacker can copy malicious files to system directories via path traversal, potentially leading to privilege escalation or code execution.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2020-5793?
CVE-2020-5793 is a high-severity path traversal vulnerability in Tenable Nessus, published on 5 Nov 2020. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
A vulnerability in Nessus versions 8.9.0 through 8.12.0 for Windows & Nessus Agent 8.0.0 and 8.1.0 for Windows could allow an authenticated local attacker to copy user-supplied files to a specially constructed path in a specifically named user directory. An attacker could exploit this vulnerability by creating a malicious file and copying the file to a system directory. The attacker needs valid credentials on the Windows system to exploit this vulnerability.
Which versions are affected by CVE-2020-5793?
It affects 2 products.
Products include Tenable Nessus, Tenable Nessus Agent.
How do I fix CVE-2020-5793?
No fix has been published for CVE-2020-5793 yet. Limit exposure of the affected software until one is available.
Upgrade, and resolve every user-supplied path against an allowed base folder before opening it. More about Path traversal.
Is CVE-2020-5793 being exploited?
There is no known exploitation of CVE-2020-5793 in the wild and no public exploit code.
Other vulnerabilities in Tenable Nessus
Sources
Also known as GHSA-ghm7-vx3w-9hw3.