David Azoulay Web File Browser 0.4b14 webFileBrowser.php path traversal

Summaryinfo

A vulnerability, which was classified as problematic, was found in David Azoulay Web File Browser 0.4b14. Affected by this issue is some unknown functionality of the file webFileBrowser.php. Executing a manipulation of the argument File can lead to path traversal. This vulnerability appears as CVE-2011-4831. In addition, an exploit is available.

Detailsinfo

A vulnerability classified as problematic was found in David Azoulay Web File Browser 0.4b14. This vulnerability affects some unknown functionality of the file webFileBrowser.php. The manipulation of the argument file with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality. CVE summarizes:

Directory traversal vulnerability in webFileBrowser.php in Web File Browser 0.4b14 allows remote authenticated users to read arbitrary files via a ..%2f (encoded dot dot) in the file parameter in a download action.

The weakness was presented 12/14/2011 (Website). The advisory is available at exploit-db.com. This vulnerability was named CVE-2011-4831 since 12/14/2011. The exploitation appears to be easy. The attack can be initiated remotely. A single authentication is required for exploitation. Technical details and also a public exploit are known. This vulnerability is assigned to T1006 by the MITRE ATT&CK project.

A public exploit has been developed by Sangyun YOO and been published even before and not after the advisory. It is possible to download the exploit at exploit-db.com. It is declared as proof-of-concept. The vulnerability was handled as a non-public zero-day exploit for at least 41 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:webFileBrowser.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.

The vulnerability is also documented in the databases at Exploit-DB (18070) and OSVDB (77774†). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• David Azoulay

Name

• Web File Browser

Version

• 0.4b14

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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