SB2021111816 - Multiple vulnerabilities in FATEK Automation WinProladder

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Out-of-bounds write (CVE-ID: CVE-2021-43554)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing project files. A remote attacker can trick the victim to open a specially crafted PDW file, trigger out-of-bounds write and execute arbitrary code on the target system.

2) Stack-based buffer overflow (CVE-ID: CVE-2021-43556)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing project files. A remote attacker can trick the victim to open a specially crafted PDW, SPF or TAB file, trigger stack-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Remediation

Cybersecurity Help is not aware of any official remediation provided by the vendor.

References

• https://ics-cert.us-cert.gov/advisories/icsa-21-320-01
• https://www.zerodayinitiative.com/advisories/ZDI-22-028/
• https://www.zerodayinitiative.com/advisories/ZDI-22-030/
• https://www.zerodayinitiative.com/advisories/ZDI-22-033/
• https://www.zerodayinitiative.com/advisories/ZDI-22-029/
• https://www.zerodayinitiative.com/advisories/ZDI-22-031/
• https://www.zerodayinitiative.com/advisories/ZDI-22-032/