Vulnerability Report

CVE-2021-20135

Title: Tenable Nessus Auth Bypass

Auth Bypass

Proof Of Concept

No public PoC currently indexed for CVE-2021-20135.

CWE Category NVD-CWE-noinfo

Published Date Nov 03, 2021

Modified Date Nov 21, 2024

Exploit Status Not Found

Score 6.7 CVSS v3.1

Exploit Probability (EPSS)

0.05%

Vulnerability Summary

CVE-2021-20135: Nessus versions 8.15.2 and earlier were found to contain a local privilege escalation vulnerability which could allow an authenticated, local administrator to run specific executables on the Nessus Agent host. Tenable has included a fix for this issue in Nessus 10.0.0. The installation files can be obtained from the Tenable Downloads Portal (https://www.tenable.com/downloads/nessus).

Impacted Vendors

nessus 1

tenable 1

Reference Links

https://www.tenable.com/security/tns-2021-18 https://www.tenable.com/security/tns-2021-18

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

6.7

Attack Vector

LOCAL

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

RAW VECTOR CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

Source Entity [email protected]

Severity MEDIUM

4.6

Access Vector

N/A

Authentication

N/A

RAW VECTOR AV:L/AC:L/Au:N/C:P/I:P/A:P

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2021-20135 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

November 21, 2024 MODIFIED

Vulnerability data or affected products updated.

November 03, 2021 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


                                    CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H

Affected Stack

No specific products linked.