Vulnerability Monitor

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CVE-2019-5180

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+0x440 is overflowed with the call to sprintf() for any ip values that are greater than 1024-len(‘/etc/config-tools/config_interfaces interface=X1 state=enabled ip-address=‘) in length. A ip value of length 0x3da will cause the service to crash.

Published

2020-03-12T00:15:18.430

Last Modified

2024-11-21T04:44:30.173

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 7.8 (HIGH)

CVSSv2 Vector

AV:L/AC:L/Au:N/C:P/I:P/A:P

Access Vector: LOCAL
Access Complexity: LOW
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: PARTIAL
Availability Impact: PARTIAL

Exploitability Score

3.9

Impact Score

6.4

Weaknesses

Type: Primary
CWE-787

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	wago	pfc200_firmware	03.02.02\(14\)	Yes
Hardware	wago	pfc200	-	No

References

https://talosintelligence.com/vulnerability_reports/TALOS-2019-0963 Exploit, Technical Description, Third Party Advisory ([email protected])
https://talosintelligence.com/vulnerability_reports/TALOS-2019-0963 Exploit, Technical Description, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)