CVE-2020-3256: Cisco Hosted Collaboration Mediation Fulfillment XML External Expansion Vulnerability
First published: Wed May 06 2020(Updated: )
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.
Credit: ykramarz@cisco.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Cisco Hosted Collaboration Mediation Fulfillment | <12.5\(1\)su2 |
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Reference Links
Frequently Asked Questions
What is the vulnerability ID for this Cisco Hosted Collaboration Mediation Fulfillment (HCM-F) Software vulnerability?
The vulnerability ID for this Cisco Hosted Collaboration Mediation Fulfillment (HCM-F) Software vulnerability is CVE-2020-3256.
What is the severity rating of CVE-2020-3256?
The severity rating of CVE-2020-3256 is medium (4.9).
How can an attacker exploit CVE-2020-3256?
An attacker can exploit CVE-2020-3256 by gaining read access to information stored on an affected system through the web-based management interface.
What version of Cisco Hosted Collaboration Mediation Fulfillment (HCM-F) Software is affected by CVE-2020-3256?
The version of Cisco Hosted Collaboration Mediation Fulfillment (HCM-F) Software affected by CVE-2020-3256 is 12.5(1)su2.
Where can I find more information about CVE-2020-3256?
You can find more information about CVE-2020-3256 in the Cisco Security Advisory at the following link: [Cisco Security Advisory - CVE-2020-3256](https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hcmf-xxe-qqCMAUJ2)
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