What is CVE-2019-5171?

CVE-2019-5171 is a high-severity vulnerability in Wago Pfc200, classified under OS Command Injection. CVSS score: 7.8/10. Published 2020-03-12.

How severe is CVE-2019-5171?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in Wago Pfc200

CVE-2019-5171

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). An attacker can send specially crafted packet at 0x1ea48 to the extracted hostname value from the xml file that is used as an argument to /etc/config-tools/config_interfaces interface=X1 state=enabled ip-address=<contents of ip node> using sprintf().

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.014 (70.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Wago Pfc200
Wago Pfc200_firmware — versions 03.02.02\(14\), 03.02.02(14)
Wago Pfc200 — versions Firmware version 03.02.02(14)

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

talos-cna@cisco.com (Technical Description, Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2019-5171?: CVE-2019-5171 is a high-severity vulnerability in Wago Pfc200, classified under OS Command Injection. CVSS score: 7.8/10. Published 2020-03-12.
How severe is CVE-2019-5171?: High severity. CVSS v3 base score is 7.8 out of 10.