Bomgar Remote Support Portal JavaStart.jar Applet up to 52790 path traversal

Summaryinfo

A vulnerability described as critical has been identified in Bomgar Remote Support Portal JavaStart.jar Applet up to 52790. This impacts an unknown function. Executing a manipulation can lead to path traversal. This vulnerability is handled as CVE-2017-12815. The attack can be executed remotely. There is not any exploit available.

Detailsinfo

A vulnerability was found in Bomgar Remote Support Portal JavaStart.jar Applet up to 52790 (Programming Language Software). It has been declared as critical. This vulnerability affects an unknown code block. The manipulation 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, integrity, and availability. CVE summarizes:

Analysis of the Bomgar Remote Support Portal JavaStart.jar Applet 52790 and earlier revealed that it is vulnerable to a path traversal vulnerability. The archive can be downloaded from a given Bomgar Remote Support Portal deployment at https://domain/api/content/JavaStart.jar and is callable from an arbitrary website using <object> and/or <appletHTML> tags. Successful exploitation results in file creation/modification/deletion in the operating system and with privileges of the user that ran the Java applet.

The bug was discovered 03/23/2018. The weakness was released 03/26/2018 as not defined posting (Bugtraq). The advisory is shared for download at securityfocus.com. This vulnerability was named CVE-2017-12815 since 08/11/2017. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly 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 3 days. During that time the estimated underground price was around $0-$5k.

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

Type

• Programming Language Software

Vendor

• Bomgar

Name

• Remote Support Portal JavaStart.jar Applet

Version

• 52790

CPE 2.3info

• 🔍

CPE 2.2info

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