CVE-2019-5177

An exploitable stack buffer overflow vulnerability vulnerability exists in the iocheckd service ‘I/O-Check’ functionality of WAGO PFC 200 Firmware version 03.02.02(14). The destination buffer sp+0x440 is overflowed with the call to sprintf() for any domainname values that are greater than 1024-len(‘/etc/config-tools/edit_dns_server domain-name=‘) in length. A domainname value of length 0x3fa will cause the service to crash.

Score

CVSS 3.1 5.5 Medium

Status

Modified - talos-cna@cisco.com

Published

2020-03-12

Last modified

2024-08-04

Weaknesses

CWE-787

Affected products

• Pfc200 Firmware (Wago)
• Wago Pfc200 (Wago)

References

• https://talosintelligence.com/vulnerability_reports/TALOS-2019-0963