CVE-2019-5172

highPriorität · verfolgen · 31EPSS 0.013 · 71. PerzentilDEEUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.34% (71st) EPSS

CVSS 7.2 · high

Is it mine?

7 products

Prüfe deine Angriffsfläche

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · wago_psirt

EPSS · bewertet 2026-10-27

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 a specially crafted packet to trigger the parsing of this cache file. At 0x1e840 the extracted ntp value from the xml file is used as an argument to /etc/config-tools/config_sntp time-server-%d=<contents of ntp node> using sprintf(). This command is later executed via a call to system(). This is done in a loop and there is no limit to how many ntp entries will be parsed from the xml file.

Behebungen

Hersteller-Fix, Mitigation oder Workaround, wie von den Quellen veröffentlicht.

Ein Hersteller-Fix ist verfügbar.

Behobenwago_psirt
The I/O-Check service protocol is only needed during installation and commissioning, not during normal operations. It is highly recommended to disable the I/O-Check service after commissioning. This is the easiest and securest way to protect your device from the listed vulnerabilities. Regardless of the action described above, the vulnerabilities are expected to be fixed in FW16 Release in Q2/2020.
Mitigationwago_psirt
* Disable I/O-Check service. * Restrict network access to the device. * Do not directly connect the device to the internet. * Disable unused TCP/UDP-ports.

cvss

Technischer Schweregrad, 0–10. Eine Zeile je Quelle.

7.8

010

Basiswert 0–10 · höher = schwerwiegender · Vektor überfahren zum Auflösen

v2.07.2highAV:L/AC:L/Au:N/C:C/I:C/A:Cprimary · NVD / NIST USAusnutzbarkeit 3.9 · Auswirkung 10

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USAusnutzbarkeit 1.8 · Auswirkung 5.9

v3.17.8highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:Hsecondary · WAGO PSIRT DE

v3.17.1highCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

schwächen

Die CWE-Schwächeklassen, zu denen dies gehört.

CWE-78USprimärCWE-78US

betroffene Produkte (7)

Betroffene Produkte und Versionsbereiche.

WAGO WAGO PFC200≤ Firmware version 03.02.02(14)enisa_euvdEU
wago pfc200 firmware= 03.02.02(14)nvdUScpe:2.3:o:wago:pfc200_firmware:*:*:*:*:*:*:*:*
Firmware <FW16 installed on Hardware 750-81xx/xxx-xxx (PFC100)alle Versionenwago_psirtDE
Firmware <FW16 installed on Hardware 750-82xx/xxx-xxx (PFC200)alle Versionenwago_psirtDE
Firmware <FW16 installed on Hardware 762-4xxxalle Versionenwago_psirtDE
Firmware <FW16 installed on Hardware 762-6xxxalle Versionenwago_psirtDE
Firmware <FW16 installed on Pepperl+Fuchs Hardware 762-5xxxalle Versionenwago_psirtDE

Advisories (1)

Hersteller- und Ökosystem-Meldungen dazu.

VDE-2020-011WAGO: Multiple Vulnerabilities in I/O-Check Service2020-03-09csaf · wago_psirtDE
An attacker needs an authorized login on the device in order to exploit the herein mentioned vulnerabilities. The reported vulnerabilities allow a local attacker with valid login credentials who is able to create files on the device to change the devices settings, e.g. default gateway address, time server etc. and potentially execute code.

auch bekannt als (3)

Weitere Namen und Kennungen dieser Entität.

quellen

Welche Quellen diesen Datensatz belegen und wann.

cnnvd enisa_euvd nvd wago_psirt NVD CVE.org MITRE

veröffentlicht 2020-03-11geändert 2026-06-17

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+7943 weitere

Referenzen (4)

Externe Belege — Patches, Meldungen, Analysen.

https://nvd.nist.gov/vuln/detail/CVE-2019-5172 cnnvd
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0962 cnnvd
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0962 enisa_euvd
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0962ExploitMitigationTechnical DescriptionThird Party Advisorynvd

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