CMS ISWEB 3.5.3 moduli/downloadFile.php File path traversal

Summaryinfo

A vulnerability, which was classified as critical, was found in CMS ISWEB 3.5.3. Affected by this issue is some unknown functionality of the file moduli/downloadFile.php. Such manipulation of the argument File with the input oggetto_documenti/../.././inc/config.php leads to path traversal. This vulnerability is uniquely identified as CVE-2018-14957. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability was found in CMS ISWEB 3.5.3 (Content Management System). It has been rated as critical. Affected by this issue is some unknown functionality of the file moduli/downloadFile.php. The manipulation of the argument file with the input value oggetto_documenti/../.././inc/config.php 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:

CMS ISWEB 3.5.3 is vulnerable to directory traversal and local file download, as demonstrated by moduli/downloadFile.php?file=oggetto_documenti/../.././inc/config.php (one can take the control of the application because credentials are present in that config.php file).

The bug was discovered 08/01/2018. The weakness was disclosed 09/28/2018 (Website). The advisory is shared for download at cxsecurity.com. This vulnerability is handled as CVE-2018-14957 since 08/05/2018. 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 57 days. During that time the estimated underground price was around $0-$5k. By approaching the search of inurl:moduli/downloadFile.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 entry VDB-124531 is pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Content Management System

Name

• CMS ISWEB

Version

• 3.5.3

CPE 2.3info

• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍

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Once again VulDB remains the best source for vulnerability data.

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