Tenable.ad < 3.29.4 / 3.19.12 / 3.11.9 Client Authentication Bypass (TNS-2022-27)

critical Nessus Plugin ID 183964


An instance of Tenable.ad (now Tenable Identity Exposure) installed on the remote system is affected by a client authentication bypass vulnerability.


According to its self-reported version, the Tenable.ad running on the remote host is prior to 3.29.4 / 3.19.12 / 3.11.9. Tenable.ad leverages third-party software to help provide underlying functionality. One of the third-party components (Erlang) was found to contain a Client Authentication Bypass in certain client-certification situations for SSL, TLS, and DTLS. Out of caution and in line with best practice, Tenable has opted to upgrade these components to address the potential impact of the issues. Tenable.ad on-premise versions 3.29.4, 3.19.12 and 3.11.9 update Erlang to version 25.1.2 to address the identified vulnerability.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.


Upgrade to Tenable.ad 3.29.4 / 3.19.12 / 3.11.9 or later.

See Also



Plugin Details

Severity: Critical

ID: 183964

File Name: tenable_ad_tns_2022_27.nasl

Version: 1.1

Type: combined

Agent: windows, macosx, unix

Family: Misc.

Published: 10/27/2023

Updated: 10/30/2023

Supported Sensors: Nessus Agent, Nessus

Risk Information


Risk Factor: Medium

Score: 5.9


Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2022-37026


Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:tenable:tenable_identity_exposure, cpe:/a:tenable:tenable_ad

Required KB Items: installed_sw/Tenable.ad

Exploit Ease: No known exploits are available

Patch Publication Date: 6/12/2023

Vulnerability Publication Date: 12/15/2022

Reference Information

CVE: CVE-2022-37026