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Cisco Expressway Series Privilege Escalation (cisco-sa-expw-escalation-3bkz77bD)

medium Nessus Plugin ID 216525

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Synopsis

The remote device is missing a vendor-supplied security patch.

Description

According to its self-reported version, Cisco Expressway Series Privilege Escalation is affected by a vulnerability.

 - A vulnerability in the restricted shell of Cisco Expressway Series could allow an authenticated, local attacker to perform command injection attacks on the underlying operating system and elevate privileges to root. To exploit this vulnerability, the attacker must have Administrator-level credentials with read- write privileges on an affected device. This vulnerability is due to insufficient validation of user- supplied input. An attacker could exploit this vulnerability by submitting a series of crafted CLI commands. A successful exploit could allow the attacker to escape the restricted shell and gain root privileges on the underlying operating system of the affected device. Note: Cisco Expressway Series refers to Cisco Expressway Control (Expressway-C) devices and Cisco Expressway Edge (Expressway-E) devices.
 (CVE-2024-20492)

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 CSCwk75586

See Also

http://www.nessus.org/u?0adf92cd

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCwk75586

Plugin Details

Severity: Medium

ID: 216525

File Name: cisco-sa-expw-escalation-3bkz77bD.nasl

Version: 1.2

Type: remote

Family: CISCO

Published: 2/20/2025

Updated: 2/21/2025

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 4.8

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

CVSS Score Source: CVE-2024-20492

CVSS v3

Risk Factor: Medium

Base Score: 6.7

Temporal Score: 5.8

Vector: CVSS:3.0/AV:L/AC:L/PR:H/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:cisco:telepresence_video_communication_server_software, cpe:/h:cisco:telepresence_video_communication_server

Required KB Items: Cisco/TelePresence_VCS/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 10/2/2024

Vulnerability Publication Date: 10/2/2024

Reference Information

CVE: CVE-2024-20492

CWE: 77

CISCO-SA: cisco-sa-expw-escalation-3bkz77bD

IAVA: 2025-A-0083

CISCO-BUG-ID: CSCwk75586