A vulnerability, which was classified as problematic, has been found in DeDeCMS 5.7 (Content Management System). Affected by this issue is an unknown functionality of the file tag_test_action.php. The manipulation of the argument runphp as part of a Parameter leads to a cross-site request forgery vulnerability. Using CWE to declare the problem leads to CWE-352. The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request. Impacted is integrity. CVE summarizes:

DedeCMS 5.7 has CSRF with an impact of arbitrary code execution, because the partcode parameter in a tag_test_action.php request can specify a runphp field in conjunction with PHP code.

The bug was discovered 03/07/2018. The weakness was published 03/27/2018 (Website). The advisory is available at laworigin.github.io. This vulnerability is handled as CVE-2018-7700 since 03/05/2018. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. Technical details are known, but there is no available exploit.

The vulnerability was handled as a non-public zero-day exploit for at least 20 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:tag_test_action.php it is possible to find vulnerable targets with Google Hacking.

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

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• Content Management System

Name

• DeDeCMS

Version

• 5.7

License

• commercial

CPE 2.3info

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CPE 2.2info

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