cyberaz0r WebRAT up to 20191222 Server/api.php download_file Name unrestricted upload ⚔ [Disputed]

Summaryinfo

A vulnerability classified as critical was found in cyberaz0r WebRAT up to 20191222. This affects the function download_file of the file Server/api.php. Executing a manipulation of the argument Name can lead to unrestricted upload. This vulnerability only affects products that are no longer supported by the maintainer. This vulnerability is tracked as CVE-2020-36825. The attack can be launched remotely. No exploit exists. It is still unclear if this vulnerability genuinely exists. It is best practice to apply a patch to resolve this issue. The issue, discovered in a 20-stars GitHub project (now private) by its author, had CVE requested by a third party 4 years post-resolution, referencing the fix commit (now a broken link). Due to minimal attention and usage, it should not be eligible for CVE according to the project maintainer.

Detailsinfo

A vulnerability has been found in cyberaz0r WebRAT up to 20191222 and classified as critical. This vulnerability affects the function download_file of the file Server/api.php. The manipulation of the argument name with an unknown input leads to a unrestricted upload vulnerability. The CWE definition for the vulnerability is CWE-434. The product allows the attacker to upload or transfer files of dangerous types that can be automatically processed within the product's environment. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 04/14/2020 as 0c394a795b9c10c07085361e6fcea286ee793701. The advisory is available at github.com. This vulnerability was named CVE-2020-36825. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1608.002 by the MITRE ATT&CK project.

The real existence of this vulnerability is still doubted at the moment. The issue, discovered in a 20-stars GitHub project (now private) by its author, had CVE requested by a third party 4 years post-resolution, referencing the fix commit (now a broken link). Due to minimal attention and usage, it should not be eligible for CVE according to the project maintainer. By approaching the search of inurl:Server/api.php it is possible to find vulnerable targets with Google Hacking.

Applying the patch 0c394a795b9c10c07085361e6fcea286ee793701 is able to eliminate this problem. The bugfix is ready for download at github.com. A possible mitigation has been published immediately after the disclosure of the vulnerability. The advisory contains the following remark:

Arbitrary PHP File Upload Vulnerability fixed

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Productinfo

Vendor

• cyberaz0r

Name

• WebRAT

Version

• 20191222

License

• open-source

Support

• end of life

Website

• Product: https://github.com/cyberaz0r/WebRAT/

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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