PT-2020-11086 · Wago · Wago Pfc 200
Published
2020-03-10
·
Updated
2020-08-24
·
CVE-2019-5167
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 occurs when the
dns value extracted from an XML file is used as an argument to the /etc/config-tools/edit dns server command, which is later executed via a call to system(). The command is executed in a loop, with no limit on the number of DNS entries parsed from the XML file.Recommendations
For WAGO PFC 200 version 03.02.02(14), consider restricting access to the iocheckd service until a patch is available. As a temporary workaround, avoid using the
dns value from the XML file in the /etc/config-tools/edit dns server command to minimize the risk of exploitation.Exploit
Fix
OS Command Injection
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Weakness Enumeration
Related Identifiers
Affected Products
Wago Pfc 200