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Cisco Security Notice

Cisco Unity Connection Directory Traversal Vulnerability

http://tools.cisco.com/security/center/content/CiscoSecurityNotice/CVE-2013-5534
CVE ID: CVE-2013-5534
Release Date: 2013 October 17 19:34  UTC (GMT)
Last Updated: 2013 October 18 14:38  UTC (GMT)

Related Resources:

View related Alert


Summary

A vulnerability in the attachment service of Cisco Unity Connection, known as Cisco Unity Web Service or as Voice Message Web Service (VMWS), could allow an authenticated, remote attacker to place files in arbitrary locations on an affected device.

The vulnerability is due to a failure to properly sanitize user-supplied input provided as part of a file name to the VMWS attachment service. An attacker could exploit this vulnerability by supplying the path to the desired file location utilizing directory traversal characters. An exploit could allow the temporary placement of an attacker-controlled file into any location writeable by the Apache Tomcat service.

When files are uploaded, the VMWS Attachment service validates the supplied file and immediately removes the file if it is not determined to be an audio file. This creates a short window that could be used to access the attacker-controlled file. If placed in the proper location on the device, an extended impact of this vulnerability could allow the attacker to execute arbitrary Java Server Pages (JSP) code within the context of Apache Tomcat.

Cisco would like to thank Emerging Defense, LLC for reporting this vulnerability.

Affected Products

ProductMore InformationCVSS
Cisco Unity ConnectionCSCuj229484.0/3.3

What Is a Cisco Security Notice?

The Cisco Product Security Incident Response Team (PSIRT) publishes Cisco Security Notices to inform customers of low- to mid-level severity security issues involving Cisco products.

Customers who wish to upgrade to a software version that includes fixes for these issues should contact their normal support channels. Free software updates will not be provided for issues that are disclosed through a Cisco Security Notice.

For additional information about Cisco PSIRT publications, see the Cisco Security Vulnerability Policy at http://www.cisco.com/web/about/security/psirt/security_vulnerability_policy.html

Customers Using Third-Party Support Organizations

Customers may have Cisco products that are provided or maintained through prior or existing agreements with third-party support organizations, such as Cisco Partners, authorized resellers, or service providers. For these products, customers should consult their service providers or support organizations to ensure that any applied workaround or fix is the most appropriate in the intended network before it is deployed.

Disclaimer

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