Information disclosure in Nessus



Published: 2021-04-06
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE ID CVE-2021-20077
CWE ID CWE-200
Exploitation vector Local
Public exploit N/A
Vulnerable software
Subscribe
Tenable Nessus
Client/Desktop applications / Software for system administration

Vendor Tenable Network Security

Security Advisory

This security advisory describes one low risk vulnerability.

1) Information disclosure

Risk: Low

CVSSv3.1: 2 [CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-20077

CWE-ID: CWE-200 - Information Exposure

Exploit availability: No

Description

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to Nessus Agent inadvertently captures the IAM role security token on the local host during initial linking of the Nessus Agent when installed on an Amazon EC2 instance. A local privileged user can obtain the token.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Tenable Nessus: 8.0.0, 8.0.1, 8.1.0, 8.1.1, 8.1.2, 8.2.0, 8.2.1, 8.2.2, 8.2.3, 8.3.0, 8.3.1, 8.3.2, 8.4.0, 8.5.0, 8.5.1, 8.5.2, 8.6.0, 8.7.0, 8.7.1, 8.7.2, 8.8.0, 8.9.0, 8.9.1, 8.10.0, 8.10.1, 8.11.0, 8.11.1, 8.12.0, 8.12.1, 8.13.0, 8.13.1, 8.13.2

CPE External links

https://www.tenable.com/security/tns-2021-07

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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