Stack Buffer Overflow Vulnerability in WAGO PFC 200 Firmware
CVE-2019-5181

7.8HIGH

Key Information:

Vendor

Wago

Status
Wago Pfc200
Vendor
CVE Published:
12 March 2020

What is CVE-2019-5181?

A vulnerable stack buffer overflow is present in the iocheckd service of the WAGO PFC 200 Firmware version 03.02.02(14). This vulnerability arises from how a specially crafted XML cache file is handled, allowing an attacker to exploit the vulnerability by sending a malicious packet that triggers the parsing of the cache file. If the specified subnetmask value exceeds a certain length, it leads to a buffer overflow. This overflow condition, if manipulated, can result in unauthorized code execution, subsequently crashing the service and potentially compromising the device.

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Affected Version(s)

WAGO PFC200 Firmware version 03.02.02(14)

References

https://talosintelligence.com/vulnerability_reports/TALOS...
x_refsource_MISC

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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