Multiple vulnerabilities in Siemens SIMOTICS CONNECT 400



Risk High
Patch available YES
Number of vulnerabilities 3
CVE-ID CVE-2021-31344
CVE-2021-31346
CVE-2021-31890
CWE-ID CWE-843
CWE-20
Exploitation vector Network
Public exploit N/A
Vulnerable software
 SIMOTICS CONNECT 400
Hardware solutions / Other hardware appliances

Vendor Siemens

Security Bulletin

This security bulletin contains information about 3 vulnerabilities.

1) Type Confusion

EUVDB-ID: #VU58078

Risk: Medium

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2021-31344

CWE-ID: CWE-843 - Type confusion

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the system.

The vulnerability exists due to a type confusion error within ICMP echo packets with fake IP options. A remote attacker can send specially crafted ICMP echo reply messages to arbitrary hosts on the network.

Mitigation

Install update from vendor's website.

Vulnerable software versions

SIMOTICS CONNECT 400: before 1.0.0.0

CPE2.3 External links

https://cert-portal.siemens.com/productcert/txt/ssa-223353.txt


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) Input validation error

EUVDB-ID: #VU58080

Risk: High

CVSSv4.0: 6.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-31346

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to compromise the target system.

The vulnerability exists due to the total length of an UDP payload (set in the IP header) is unchecked. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack or gain access to sensitive information on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

SIMOTICS CONNECT 400: before 1.0.0.0

CPE2.3 External links

https://cert-portal.siemens.com/productcert/txt/ssa-223353.txt


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) Input validation error

EUVDB-ID: #VU58090

Risk: High

CVSSv4.0: 6.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2021-31890

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to the total length of a TCP payload (set in the IP header) is unchecked. A remote attacker can cause a denial of service condition on the target system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

SIMOTICS CONNECT 400: before 1.0.0.0

CPE2.3 External links

https://cert-portal.siemens.com/productcert/txt/ssa-223353.txt


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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