XXE attack in Cisco WebEx Meetings Server - CVE-2018-18895

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Main Vulnerability Database Vulnerabilities #VU15811

XXE attack in Cisco WebEx Meetings Server - CVE-2018-18895

Published: November 12, 2018 / Updated: November 13, 2018


Vulnerability identifier: #VU15811
CSH Severity: Low
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2018-18895
CWE-ID: CWE-611
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Cisco Systems, Inc
Affected software:
Cisco WebEx Meetings Server

Detailed vulnerability description

The vulnerability allows a remote attacker to conduct XXE-attack.

The vulnerability exists in the '/WBXServixe/XMLService' path name and 'siteName' parameters due to improper handling of XML External Entities (XXEs) when parsing an XML file. A remote attacker can trick the victim into open an XML file that submits malicious input and obtain potentially sensitive information.


How to mitigate CVE-2018-18895

Update to version 2.8MR3, 3.0MR2 patch 1, or the upcoming 4.0.

Sources