LimeSurvey up to 3.16.1+190225 export.php downloadZip access control

Summaryinfo

A vulnerability was found in LimeSurvey up to 3.16.1+190225 and classified as critical. This issue affects the function downloadZip of the file application/controllers/admin/export.php. Executing a manipulation can lead to access control. This vulnerability is handled as CVE-2019-9960. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in LimeSurvey up to 3.16.1+190225 (Survey Software). It has been declared as very critical. This vulnerability affects the function downloadZip of the file application/controllers/admin/export.php. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The downloadZip function in application/controllers/admin/export.php in LimeSurvey through 3.16.1+190225 allows a relative path.

The bug was discovered 03/14/2019. The weakness was released 03/24/2019. This vulnerability was named CVE-2019-9960 since 03/23/2019. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 08/04/2023). The MITRE ATT&CK project declares the attack technique as T1068.

The vulnerability was handled as a non-public zero-day exploit for at least 10 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:application/controllers/admin/export.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.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Type

• Survey Software

Name

• LimeSurvey

Version

• 3.16.1+190225

License

• open-source

Website

• Product: https://github.com/LimeSurvey/LimeSurvey/

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