NetGain Enterprise Manager 7.2.730 Build 1034 filename information disclosure

Summaryinfo

A vulnerability classified as critical has been found in NetGain Enterprise Manager 7.2.730 Build 1034. This affects an unknown function of the component org.apache.jsp.u.jsp.reports.export_005fdownload_jsp Servlet. The manipulation of the argument filename as part of Parameter leads to information disclosure. This vulnerability is uniquely identified as CVE-2017-16595. The attack is possible to be carried out remotely. No exploit exists.

Detailsinfo

A vulnerability was found in NetGain Enterprise Manager 7.2.730 Build 1034 and classified as critical. This issue affects some unknown processing of the component org.apache.jsp.u.jsp.reports.export_005fdownload_jsp Servlet. The manipulation of the argument filename as part of a Parameter leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

This vulnerability allows remote attackers to disclose sensitive information on vulnerable installations of NetGain Systems Enterprise Manager 7.2.730 build 1034. Although authentication is required to exploit this vulnerability, the existing authentication mechanism can be bypassed. The specific flaw exists within the org.apache.jsp.u.jsp.reports.export_005fdownload_jsp servlet, which listens on TCP port 8081 by default. When parsing the filename parameter, the process does not properly validate a user-supplied path prior to using it in file operations. An attacker can leverage this in conjunction with other vulnerabilities to execute code in the context of Administrator. Was ZDI-CAN-5118.

The bug was discovered 12/13/2017. The weakness was disclosed 01/23/2018 (Website). It is possible to read the advisory at zerodayinitiative.com. The identification of this vulnerability is CVE-2017-16595 since 11/06/2017. 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 T1592 according to MITRE ATT&CK.

The vulnerability was handled as a non-public zero-day exploit for at least 40 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.

The entries VDB-112311, VDB-112310, VDB-112309 and VDB-112308 are pretty similar. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• NetGain

Name

• Enterprise Manager

Version

• 7.2.730 Build 1034

License

• commercial

CPE 2.3info

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CPE 2.2info

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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