CVE-2023-0524 Privilege escalation in Tenable.io, Tenable.sc, Nessus
A malicious actor with sufficient permissions can modify environment variables to abuse a plugin and escalate privileges in Tenable products.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2023-0524?
CVE-2023-0524 is a high-severity vulnerability in Tenable Nessus, published on 1 Feb 2023. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
As part of our Security Development Lifecycle, a potential privilege escalation issue was identified internally. This could allow a malicious actor with sufficient permissions to modify environment variables and abuse an impacted plugin in order to escalate privileges. We have resolved the issue and also made several defense-in-depth fixes alongside. While the probability of successful exploitation is low, Tenable is committed to securing our customers’ environments and our products. The updates have been distributed via the Tenable plugin feed in feed serial numbers equal to or greater than #202212212055.
Weakness: CWE-269
Which versions are affected by CVE-2023-0524?
It affects 3 products.
Products include Tenable Nessus, Tenable Tenable.io, Tenable Tenable.sc.
How do I fix CVE-2023-0524?
No fix has been published for CVE-2023-0524 yet. Limit exposure of the affected software until one is available.
Is CVE-2023-0524 being exploited?
There is no known exploitation of CVE-2023-0524 in the wild and no public exploit code.
Other vulnerabilities in Tenable Nessus
Sources
Also known as GHSA-2r3h-3gcc-24g5.