SB2020071009 - Multiple vulnerabilities in Phoenix Contact Automation Worx Software Suite

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Stack-based buffer overflow (CVE-ID: CVE-2020-12497)

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

The vulnerability exists due to a boundary error within the parsing of XML files. A remote unauthenticated attacker can use a specially crafted 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.

2) Out-of-bounds read (CVE-ID: CVE-2020-12498)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

Remediation

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

References

• https://cert.vde.com/de-de/advisories/vde-2020-023
• https://www.zerodayinitiative.com/advisories/ZDI-21-398/