Cisco Adaptive Security Appliance Software Clientless SSL VPN Client-Side Request Smuggling (cisco-sa-asa-webvpn-LOeKsNmO)

medium Nessus Plugin ID 164087

Synopsis

The remote device is missing a vendor-supplied security patch

Description

A vulnerability in the Clientless SSL VPN (WebVPN) component of Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to conduct browser-based attacks.

This vulnerability is due to improper validation of input that is passed to the Clientless SSL VPN component.
Successful exploitation of this vulnerability could allow attacks to conduct browser-based attacks, including cross-site scripting attacks, against the target user.

Please see the included Cisco BIDs and Cisco Security Advisory for more information.

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

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCwa04262

See Also

http://www.nessus.org/u?231c9463

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwa04262

Plugin Details

Severity: Medium

ID: 164087

File Name: cisco-sa-asa-webvpn-LOeKsNmO.nasl

Version: 1.11

Type: local

Family: CISCO

Published: 8/12/2022

Updated: 6/2/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.8

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 4.7

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

CVSS Score Source: CVE-2022-20713

CVSS v3

Risk Factor: Medium

Base Score: 6.1

Temporal Score: 5.3

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

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

Vulnerability Information

CPE: cpe:/a:cisco:adaptive_security_appliance_software

Required KB Items: Host/Cisco/ASA/model

Exploit Ease: No known exploits are available

Patch Publication Date: 8/10/2022

Vulnerability Publication Date: 8/10/2022

Reference Information

CVE: CVE-2022-20713

CISCO-SA: cisco-sa-asa-webvpn-LOeKsNmO

IAVA: 2022-A-0329-S

CISCO-BUG-ID: CSCwa04262