CVE-2023-5847 — Under certain conditions, a low privileged attacker could load a specially craft

Under certain conditions, a low privileged attacker could load a specially crafted file during installation or upgrade to escalate privileges on Windows and Linux hosts.

01What is this vulnerability?

Under certain conditions, a low privileged attacker could load a specially crafted file during installation or upgrade to escalate privileges on Windows and Linux hosts.

02Affected products

Vendor	Product	Versions
Tenable	Nessus	0
Tenable	Nessus Agent	0

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2023-11-01T15:30:55.181Z
• Last modified: 2024-09-05T19:40:22.479Z

09References

• www.tenable.com — https://www.tenable.com/security/tns-2023-37
• www.tenable.com — https://www.tenable.com/security/tns-2023-38