SB2025070226 - Multiple vulnerabilities in FESTO CODESYS Gateway Server V2
Published: July 2, 2025
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 3 vulnerabilities.
1) Partial String Comparison (CVE-ID: CVE-2022-31802)
CWE-ID: CWE-187 - Partial String Comparison
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to only part of the specified password is being compared to the real CODESYS Gateway password. A remote attacker can specify a small password that matches the corresponding part of the longer real CODESYS Gateway password and perform authentication on the system.
2) Resource exhaustion (CVE-ID: CVE-2022-31803)
CWE-ID: CWE-400 - Resource exhaustion
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Green
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
3) Uncontrolled Memory Allocation (CVE-ID: CVE-2022-31804)
CWE-ID: CWE-789 - Uncontrolled Memory Allocation
CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to the affected application does not verify the size of a request is within expected limits. A remote attacker can cause a denial of service (DoS) condition on the target system.
Remediation
Install update from vendor's website.