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Cisco Secure Firewall Threat Defense Software VPN Web Server Unauthorized Access (cisco-sa-asaftd-webvpn-YROOTUW)

medium Nessus Plugin ID 265966

Synopsis

The remote device is missing a vendor-supplied security patch

Description

According to its self-reported version, Cisco Firepower Threat Defense Software is affected by a vulnerability.

 - A vulnerability in the VPN web server of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to access restricted URL endpoints without authentication that should otherwise be inaccessible without authentication. This vulnerability is due to improper validation of user-supplied input in HTTP(S) requests. An attacker could exploit this vulnerability by sending crafted HTTP requests to a targeted web server on a device. A successful exploit could allow the attacker to access a restricted URL without authentication. (CVE-2025-20362)

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

Solution

Upgrade to the relevant fixed version referenced in Cisco bug ID CSCwq79815

See Also

http://www.nessus.org/u?1d638962

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwq79815

http://www.nessus.org/u?3c68d455

Plugin Details

Severity: Medium

ID: 265966

File Name: cisco-sa-asaftd-webvpn-YROOTUW-ftd.nasl

Version: 1.2

Type: local

Family: CISCO

Published: 9/26/2025

Updated: 9/28/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.5

CVSS v2

Risk Factor: Medium

Base Score: 6.4

Temporal Score: 5.3

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

CVSS Score Source: CVE-2025-20362

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 6

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

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

Vulnerability Information

CPE: cpe:/a:cisco:firepower_threat_defense

Required KB Items: installed_sw/Cisco Firepower Threat Defense

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/25/2025

Vulnerability Publication Date: 9/25/2025

CISA Known Exploited Vulnerability Due Dates: 9/26/2025

Reference Information

CVE: CVE-2025-20362

CWE: 862

CISCO-SA: cisco-sa-asaftd-webvpn-YROOTUW

IAVA: 2025-A-0702

CISCO-BUG-ID: CSCwq79815