CVE-2020-3256 MEDIUM

CVE-2020-3256: Cisco Hosted Collaboration Mediation Fulfillment XML External Expansion Vulnerability

Vendor Cisco
Product Cisco Hosted Collaboration Mediation Fulfillment
Weakness CWE-611 · XXE
Published May 6, 2020
Last update November 15, 2024

CVSS base score

4.9/10
Attack vector Network
Attack complexity Low
Privileges required High
User interaction None
Confidentiality High
Integrity None

CVSS vector

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

What the vulnerability does

01Description

A vulnerability in the web-based management interface of Cisco Hosted Collaboration Mediation Fulfillment (HCM-F) Software could allow an authenticated, remote attacker to gain read access to information that is stored on an affected system. To exploit this vulnerability, an attacker would need administrative privileges on the Cisco HCM-F Software. The vulnerability is due to improper handling of XML External Entity (XXE) entries when parsing certain XML files. An attacker could exploit this vulnerability by sending malicious requests that contain references in XML entities to an affected system. A successful exploit could allow the attacker to retrieve files from the local system, resulting in the disclosure of sensitive information.

Key dates

02Disclosure timeline

May 6, 2020 CVE published
November 15, 2024 Record updated