Summaryinfo

A vulnerability classified as problematic has been found in Cisco Linksys E4200 L 1.10. Affected is an unknown function of the file /storage/apply.cgi. This manipulation of the argument new_group/submit_button causes cross site scripting. This vulnerability appears as CVE-2013-2679. The attack may be initiated remotely. In addition, an exploit is available.

Detailsinfo

A vulnerability classified as critical was found in Cisco Linksys E4200 L 1.10 (Router Operating System). Affected by this vulnerability is some unknown processing of the file /storage/apply.cgi. The manipulation of the argument new_group/submit_button with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-80. The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special characters such as "<", ">", and "&" that could be interpreted as web-scripting elements when they are sent to a downstream component that processes web pages. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was presented 05/06/2013 by Hoyt LLC as confirmed exploit (Blog). It is possible to read the advisory at cloudscan.me. This vulnerability is known as CVE-2013-2679 since 03/22/2013. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. Technical details and also a public exploit are known. The attack technique deployed by this issue is T1059.007 according to MITRE ATT&CK.

A public exploit has been developed by sqlhacker and been published immediately after the advisory. It is possible to download the exploit at cloudscan.me. It is declared as proof-of-concept.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the databases at Exploit-DB (25292) and OSVDB (93059†). See VDB-7438, VDB-7439, VDB-7440 and VDB-8624 for similar entries. Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Type

• Router Operating System

Vendor

• Cisco

Name

• Linksys E4200

Version

• L 1.10

License

• commercial

Website

• Vendor: https://www.cisco.com/

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