Multiple vulnerabilities in Nessus Agent



Published: 2022-06-20
Risk Medium
Patch available YES
Number of vulnerabilities 2
CVE-ID CVE-2022-32973
CVE-2022-32974
CWE-ID CWE-78
CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
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Nessus Agent
Client/Desktop applications / Other client software

Vendor Tenable Network Security

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) OS Command Injection

EUVDB-ID: #VU64482

Risk: Medium

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-32973

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

The vulnerability allows a remote user to execute arbitrary shell commands on the target system.

The vulnerability exists due to improper input validation. A remote user can create an audit file that bypasses PowerShell cmdlet checks and executes commands with administrator privileges.


Mitigation

Install update from vendor's website.

Vulnerable software versions

Nessus Agent: 10.0.0 - 10.1.3

External links

http://www.tenable.com/security/tns-2022-13


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.

2) Input validation error

EUVDB-ID: #VU64483

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-32974

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote user to gain access to sensitive information.

The vulnerability exists due to insufficient validation of user-supplied input when processing audit files. A remote user can read arbitrary files from the underlying operating system of the scanner using a custom crafted compliance audit file without providing any valid SSH credentials.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Nessus Agent: 10.0.0 - 10.1.3

External links

http://www.tenable.com/security/tns-2022-13


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.



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