Multiple vulnerabilities in Tenable Nessus



Risk Low
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2023-4807
CVE-2023-5847
CWE-ID CWE-20
CWE-426
Exploitation vector Network
Public exploit N/A
Vulnerable software
 Tenable Nessus
Client/Desktop applications / Software for system administration

Vendor Tenable Network Security

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Input validation error

EUVDB-ID: #VU80565

Risk: Low

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-4807

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

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 within the POLY1305 MAC (message authentication code) implementation. A remote attacker can send specially crafted input to the application and corrupt MM registers on Windows 64 platform, resulting in a denial of service condition.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Tenable Nessus: 10.0.0 - 10.5.5

CPE2.3 External links

https://www.tenable.com/security/tns-2023-36


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

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

2) Untrusted search path

EUVDB-ID: #VU82654

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-5847

CWE-ID: CWE-426 - Untrusted Search Path

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to usage of an untrusted search path when installing or upgrading software. A local user can place a malicious binary into a specific location on the system and execute arbitrary code with escalated privileges.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Tenable Nessus: 10.0.0 - 10.5.5

CPE2.3 External links

https://www.tenable.com/security/tns-2023-36


Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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



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