Cisco TelePresence VCS Expressway 8.5.3 XML External Entity (XXE) Injection

medium Nessus Plugin ID 85649

Synopsis

The remote host is affected by an XML External Entity (XXE) injection vulnerability.

Description

According to its self-reported version, the instance of Cisco TelePresence Video Communication Server (VCS) Expressway running on the remote host is affected by an XML External Entity (XXE) injection vulnerability due to insufficient validation of declared document type definitions (DTD) stored externally. An authenticated, remote attacker can exploit this, via a specially crafted XML file, to cause a denial of service condition or to read arbitrary files.

Solution

Contact the vendor for a fix.

See Also

https://tools.cisco.com/bugsearch/bug/CSCuv31853

https://tools.cisco.com/security/center/viewAlert.x?alertId=40446

Plugin Details

Severity: Medium

ID: 85649

File Name: cisco_telepresence_vcs_CSCuv31853.nasl

Version: 1.6

Type: remote

Family: CISCO

Published: 8/26/2015

Updated: 4/11/2022

Configuration: Enable thorough checks

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.0

CVSS v2

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.1

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

CVSS Score Source: CVE-2015-4315

CVSS v3

Risk Factor: Medium

Base Score: 6.4

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

Vulnerability Information

CPE: cpe:/h:cisco:telepresence_video_communication_server, cpe:/a:cisco:telepresence_video_communication_server, cpe:/a:cisco:telepresence_video_communication_server_software

Required KB Items: Cisco/TelePresence_VCS/Version

Exploit Ease: No known exploits are available

Vulnerability Publication Date: 8/13/2015

Reference Information

CVE: CVE-2015-4315

BID: 76352

CISCO-BUG-ID: CSCuv31853