Foxit MobilePDF App up to 6.0 on iOS WiFi Transfer path traversal

Summaryinfo

A vulnerability marked as critical has been reported in Foxit MobilePDF App up to 6.0 on iOS. This vulnerability affects unknown code of the component WiFi Transfer. The manipulation leads to path traversal. This vulnerability is documented as CVE-2017-16814. The attack needs to be performed locally. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Foxit MobilePDF App up to 6.0 on iOS (iOS App Software). It has been rated as critical. This issue affects an unknown code of the component WiFi Transfer. The manipulation 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, and integrity. The summary by CVE is:

A Directory Traversal issue was discovered in the Foxit MobilePDF app before 6.1 for iOS. This occurs by abusing the URL + escape character during a Wi-Fi transfer, which could be exploited by attackers to bypass intended restrictions on local application files.

The bug was discovered 11/12/2017. The weakness was released 02/26/2018 (Website). It is possible to read the advisory at foxitsoftware.com. The identification of this vulnerability is CVE-2017-16814 since 11/13/2017. The exploitation is known to be easy. The attack needs to be initiated within the local network. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 106 days. During that time the estimated underground price was around $0-$5k.

Upgrading to version 6.1 eliminates this vulnerability.

Entries connected to this vulnerability are available at VDB-82783, VDB-82784, VDB-82785 and VDB-82786. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Type

• iOS App Software

Vendor

• Foxit

Name

• MobilePDF App

Version

• 6.0

License

• free

Website

• Vendor: https://www.foxitsoftware.com/

CPE 2.3info

• 🔍

CPE 2.2info

• 🔍

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Entryinfo

Be aware that VulDB is the high quality source for vulnerability data.

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