#VU20268 Input validation error in Tenable Nessus - CVE-2019-3974

Vulnerability identifier: #VU20268

Vulnerability risk: Low

CVSSv4.0: 1.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-3974

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Tenable Nessus
Client/Desktop applications / Software for system administration

Vendor: Tenable Network Security

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote authenticated attacker can overwrite arbitrary files on the system.

Note, vulnerability affects Windows version of Nessus.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Tenable Nessus: 8.0.0 - 8.5.2

---

External links
https://www.tenable.com/security/tns-2019-05

---

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.