This vulnerability allows remote attackers to execute code by creating arbitrary files on vulnerable installations of NetGain Systems Enter…

published 2018-01-23 8 y ago modified 2026-06-17 4 mo ago also EUVD-2017-7794

cvss: 8.8; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 54.0%; EPSS 54.0% chance of exploitation in 30 days, percentile 99%
public exploits: 0; none known

This vulnerability allows remote attackers to execute code by creating arbitrary files 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.settings.upload_005ffile_005fdo_jsp servlet, which listens on TCP port 8081 by default. When parsing the filename parameter, the process does not properly validate user-supplied data, which can allow for the upload of files. An attacker can leverage this vulnerability to execute code under the context of Administrator. Was ZDI-CAN-5194.

Exploit prediction

54.02% chance of exploitation in the next 30 days, higher than 99% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.0	8.8	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	6.5	AV:N/AC:L/Au:S/C:P/I:P/A:P

Affected products

NetGain Systems NetGain Systems Enterprise Manager

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory
CWE-668 Exposure of Resource to Wrong Sphere

References

zerodayinitiative.com /advisories/ZDI-17-968
third-party-advisory, vdb-entry

Sources

CVE List CVE-2017-16603
NVD CVE-2017-16603

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Summary