Luracast Restler up to 3.0.0 getsource.php File path traversal

Summaryinfo

A vulnerability marked as problematic has been reported in Luracast Restler up to 3.0.0. Affected by this issue is some unknown functionality of the file public/examples/resources/getsource.php. The manipulation of the argument File leads to path traversal. This vulnerability is uniquely identified as CVE-2017-15363. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Luracast Restler up to 3.0.0. This issue affects an unknown code of the file public/examples/resources/getsource.php. The manipulation of the argument file with an unknown input 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. The summary by CVE is:

Directory traversal vulnerability in public/examples/resources/getsource.php in Luracast Restler through 3.0.0, as used in the restler extension before 1.7.1 for TYPO3, allows remote attackers to read arbitrary files via the file parameter.

The bug was discovered 10/13/2017. The weakness was disclosed 10/15/2017 (Website). It is possible to read the advisory at extensions.typo3.org. The identification of this vulnerability is CVE-2017-15363 since 10/15/2017. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

It is declared as highly functional. The vulnerability was handled as a non-public zero-day exploit for at least 2 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:public/examples/resources/getsource.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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Productinfo

Vendor

• Luracast

Name

• Restler

Version

• 3.0

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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CVSSv3info

CVSSv2info

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Threat Intelligenceinfo

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