WebID 1.2.2 getthumb.php HTTP GET Request path traversal

Summaryinfo

A vulnerability was found in WebID 1.2.2. It has been declared as critical. Affected is an unknown function of the file getthumb.php. Such manipulation as part of HTTP GET Request leads to path traversal. This vulnerability is traded as CVE-2018-1000882. The attack may be launched remotely. There is no exploit available. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability was found in WebID 1.2.2. It has been rated as critical. Affected by this issue is some unknown processing of the file getthumb.php. The manipulation as part of a HTTP GET Request leads to a path traversal vulnerability. 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 confidentiality. CVE summarizes:

WeBid version up to current version 1.2.2 contains a Directory Traversal vulnerability in getthumb.php that can result in Arbitrary Image File Read. This attack appear to be exploitable via HTTP GET Request. This vulnerability appears to have been fixed in after commit 256a5f9d3eafbc477dcf77c7682446cc4b449c7f.

The bug was discovered 11/22/2018. The weakness was shared 12/20/2018 (Website). The advisory is shared for download at bugs.webidsupport.com. This vulnerability is handled as CVE-2018-1000882 since 12/20/2018. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1006.

The vulnerability was handled as a non-public zero-day exploit for at least 28 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:getthumb.php it is possible to find vulnerable targets with Google Hacking.

Applying the patch 256a5f9d3eafbc477dcf77c7682446cc4b449c7f is able to eliminate this problem.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Name

• WebID

Version

• 1.2.2

License

• open-source

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CPE 2.2info

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