Multiple vulnerabilities in FESTO CODESYS Gateway Server V2



Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2022-31802
CVE-2022-31803
CVE-2022-31804
CWE-ID CWE-187
CWE-400
CWE-789
Exploitation vector Network
Public exploit N/A
Vulnerable software
 CODESYS Gateway Server V2
Server applications / Other server solutions

Vendor Festo

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Partial String Comparison

EUVDB-ID: #VU112094

Risk: High

CVSSv4.0: 8.1 [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]

CVE-ID: CVE-2022-31802

CWE-ID: CWE-187 - Partial String Comparison

Exploit availability: No

Description

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

CODESYS Gateway Server V2: before 2.3.9.38

CPE2.3 External links

https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17141&token=17867e35cfd30c77ba0137f9a17b3a557a4b7b66&download=
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17141&token=17867e35cfd30c77ba0137f9a17b3a557a4b7b66&download=
https://www.cisa.gov/news-events/ics-advisories/icsa-25-182-03


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Resource exhaustion

EUVDB-ID: #VU112095

Risk: Medium

CVSSv4.0: 2.7 [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]

CVE-ID: CVE-2022-31803

CWE-ID: CWE-400 - Resource exhaustion

Exploit availability: No

Description

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

CODESYS Gateway Server V2: before 2.3.9.38

CPE2.3 External links

https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17141&token=17867e35cfd30c77ba0137f9a17b3a557a4b7b66&download=
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17141&token=17867e35cfd30c77ba0137f9a17b3a557a4b7b66&download=
https://www.cisa.gov/news-events/ics-advisories/icsa-25-182-03


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

3) Uncontrolled Memory Allocation

EUVDB-ID: #VU112096

Risk: High

CVSSv4.0: 6.6 [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]

CVE-ID: CVE-2022-31804

CWE-ID: CWE-789 - Uncontrolled Memory Allocation

Exploit availability: No

Description

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.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

CODESYS Gateway Server V2: before 2.3.9.38

CPE2.3 External links

https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17141&token=17867e35cfd30c77ba0137f9a17b3a557a4b7b66&download=
https://customers.codesys.com/index.php?eID=dumpFile&t=f&f=17141&token=17867e35cfd30c77ba0137f9a17b3a557a4b7b66&download=
https://www.cisa.gov/news-events/ics-advisories/icsa-25-182-03


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.



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