NetGain Enterprise Manager 7.2.699 Build 1001 filename information disclosure

Summaryinfo

A vulnerability identified as critical has been detected in NetGain Enterprise Manager 7.2.699 Build 1001. This issue affects some unknown processing of the component org.apache.jsp.u.jsp.restore.download_005fdo_jsp Servlet. This manipulation of the argument filename as part of Parameter causes information disclosure. This vulnerability appears as CVE-2017-16591. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability classified as critical was found in NetGain Enterprise Manager 7.2.699 Build 1001. Affected by this vulnerability is some unknown functionality of the component org.apache.jsp.u.jsp.restore.download_005fdo_jsp Servlet. The manipulation of the argument filename as part of a Parameter leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect 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 7.2.699 build 1001. 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.restore.download_005fdo_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-5100.

The bug was discovered 12/13/2017. The weakness was presented 01/23/2018 (Website). It is possible to read the advisory at zerodayinitiative.com. This vulnerability is known as CVE-2017-16591 since 11/06/2017. The attack can be launched remotely. The exploitation doesn't need any form of authentication. 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.

See VDB-112307, VDB-112306, VDB-112305 and VDB-112304 for similar entries. Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

• NetGain

Name

• Enterprise Manager

Version

• 7.2.699 Build 1001

License

• commercial

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CPE 2.2info

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Entryinfo

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

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