PT-2020-11087 · Wago · Wago Pfc 200
Kelly Leuschner
·
Published
2020-03-10
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Updated
2020-03-16
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CVE-2019-5168
CVSS v3.1
7.8
High
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Name of the Vulnerable Software and Affected Versions
WAGO PFC 200 version 03.02.02(14)
Description
A command injection issue exists in the iocheckd service, specifically in the 'I/O-Check' function. This is due to the use of user-input data from an XML cache file in a system command. An attacker can craft a special XML cache file to inject commands. The
domainname value from the XML file is used in the /etc/config-tools/edit dns server command with domain-name=<contents of domainname node>, which is executed via system().Recommendations
For WAGO PFC 200 version 03.02.02(14), as a temporary workaround, consider restricting access to the iocheckd service to minimize the risk of exploitation. Avoid using the
domainname value from untrusted XML files in the /etc/config-tools/edit dns server command until the issue is resolved. At the moment, there is no information about a newer version that contains a fix for this vulnerability.Exploit
OS Command Injection
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Weakness Enumeration
Related Identifiers
Affected Products
Wago Pfc 200