Vulnerability Monitor

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CVE-2019-5175

An exploitable command injection vulnerability exists in the iocheckd service ‘I/O-Check’ function of the WAGO PFC 200 Firmware version 03.02.02(14). A specially crafted XML cache file written to a specific location on the device can be used to inject OS commands. An attacker can send a specially crafted packet to trigger the parsing of this cache file.At 0x1ea28 the extracted type value from the xml file is used as an argument to /etc/config-tools/config_interfaces interface=X1 state=enabled config-type=<contents of type node> using sprintf(). This command is later executed via a call to system().

Published

2020-03-11T23:15:11.747

Last Modified

2024-11-21T04:44:29.620

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:C/I:C/A:C

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: COMPLETE
Integrity Impact: COMPLETE
Availability Impact: COMPLETE

Exploitability Score

3.9

Impact Score

10.0

Weaknesses

Type: Primary
CWE-78

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	wago	pfc200_firmware	03.02.02\(14\)	Yes
Hardware	wago	pfc200	-	No

References

https://talosintelligence.com/vulnerability_reports/TALOS-2019-0962 Exploit, Mitigation, Technical Description, Third Party Advisory ([email protected])
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0962 Exploit, Mitigation, Technical Description, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)