Cisco 8800 IP Phone 11.0(1) File path traversal

Summaryinfo

A vulnerability has been found in Cisco 8800 IP Phone 11.0(1) and classified as problematic. This vulnerability affects unknown code. The manipulation leads to path traversal (File). This vulnerability is documented as CVE-2016-1434. The attack can be initiated remotely. There is not any exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability was found in Cisco 8800 IP Phone 11.0(1) (IP Phone Software). It has been rated as critical. This issue affects an unknown part. The manipulation with an unknown input leads to a path traversal vulnerability (File). Using CWE to declare the problem leads to CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. Impacted is integrity, and availability. The summary by CVE is:

The license-certificate upload functionality on Cisco 8800 phones with software 11.0(1) allows remote authenticated users to delete arbitrary files via an invalid file, aka Bug ID CSCuz03010.

The weakness was released 06/20/2016 as cisco-sa-20160620-ip-phone as confirmed advisory (Website). It is possible to read the advisory at tools.cisco.com. The identification of this vulnerability is CVE-2016-1434 since 01/04/2016. The exploitation is known to be easy. The attack may be initiated remotely. A simple authentication is necessary for exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Applying a patch is able to eliminate this problem. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at SecurityTracker (ID 1036139†). Entry connected to this vulnerability is available at VDB-88092. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• IP Phone Software

Vendor

• Cisco

Name

• 8800 IP Phone

Version

• 11.0(1)

License

• commercial

Website

• Vendor: https://www.cisco.com/

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CPE 2.2info

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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