CVE-2019-5176

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). An attacker can send a specially crafted packet to trigger the parsing of this cache file.The destination buffer sp+0x40 is overflowed with the call to sprintf() for any gateway values that are greater than 512-len(‘/etc/config-tools/config_default_gateway number=0 state=enabled value=‘) in length. A gateway value of length 0x7e2 will cause the service to crash.
References
Link Resource
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0963 Exploit Mitigation Technical Description Third Party Advisory
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Configurations

Configuration 1 (hide)

AND
cpe:2.3:o:wago:pfc200_firmware:03.02.02\(14\):*:*:*:*:*:*:*
cpe:2.3:h:wago:pfc200:-:*:*:*:*:*:*:*

Information

Published : 2020-03-11 17:15

Updated : 2020-03-17 11:16


NVD link : CVE-2019-5176

Mitre link : CVE-2019-5176


JSON object : View

CWE
CWE-787

Out-of-bounds Write

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Products Affected

wago

  • pfc200_firmware
  • pfc200