CVE-2019-5172
Last modified
CVE-2019-5172 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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. EPSS estimates a 1.34% chance of exploitation in the next 30 days.
Description
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.
Metrics
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Wago | Pfc200 Firmware | 03.02.02\(14\) |
References
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0962Exploit, Mitigation, Technical Description, Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2019-0962Exploit, Mitigation, Technical Description, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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