Multiple vulnerabilities in Siemens InterMesh Subscriber Devices

1) OS Command Injection

EUVDB-ID: #VU99555

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-2024-47901

CWE-ID: CWE-78 - Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Exploit availability: No

Description

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

The vulnerability exists due to improper input validation in specific GET requests. A remote unauthenticated attacker can pass specially crafted data to the application and execute arbitrary OS commands on the target system.

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

Mitigation

Install updates from vendor's website.

Vulnerable software versions

InterMesh 7177 Hybrid 2.0 Subscriber: before 8.2.12

InterMesh 7707 Fire Subscriber: before 7.2.12

CPE2.3

• cpe:2.3:h:siemens:intermesh_7177_hybrid_2.0_subscriber:*:*:*:*:*:*:*:*
• cpe:2.3:h:siemens:intermesh_7707_fire_subscriber:*:*:*:*:*:*:*:*

External links

https://cert-portal.siemens.com/productcert/html/ssa-333468.html

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) Missing Authentication for Critical Function

EUVDB-ID: #VU99557

Risk: Medium

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

CVE-ID: CVE-2024-47902

CWE-ID: CWE-306 - Missing Authentication for Critical Function

Exploit availability: No

Description

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

The vulnerability exists due to the affected web server does not authenticate GET requests that execute specific commands on operating system level. A remote attacker can bypass authentication on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

InterMesh 7177 Hybrid 2.0 Subscriber: before 8.2.12

InterMesh 7707 Fire Subscriber: before 7.2.12

CPE2.3

• cpe:2.3:h:siemens:intermesh_7177_hybrid_2.0_subscriber:*:*:*:*:*:*:*:*
• cpe:2.3:h:siemens:intermesh_7707_fire_subscriber:*:*:*:*:*:*:*:*

External links

https://cert-portal.siemens.com/productcert/html/ssa-333468.html

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) Execution with unnecessary privileges

EUVDB-ID: #VU99560

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-2024-47903

CWE-ID: CWE-250 - Execution with Unnecessary Privileges

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to the affected web server allows to write arbitrary files to the web server's DocumentRoot directory. A remote attacker can gain elevated privileges on the target system.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

InterMesh 7177 Hybrid 2.0 Subscriber: before 8.2.12

InterMesh 7707 Fire Subscriber: before 7.2.12

CPE2.3

• cpe:2.3:h:siemens:intermesh_7177_hybrid_2.0_subscriber:*:*:*:*:*:*:*:*
• cpe:2.3:h:siemens:intermesh_7707_fire_subscriber:*:*:*:*:*:*:*:*

External links

https://cert-portal.siemens.com/productcert/html/ssa-333468.html

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.

4) Incorrect Privilege Assignment

EUVDB-ID: #VU99561

Risk: Low

CVSSv4.0: 5.9 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2024-47904

CWE-ID: CWE-266 - Incorrect Privilege Assignment

Exploit availability: No

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to the affected devices contain a SUID binary. A local user can execute arbitrary commands with root privileges.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

InterMesh 7177 Hybrid 2.0 Subscriber: before 8.2.12

InterMesh 7707 Fire Subscriber: before 7.2.12

CPE2.3

• cpe:2.3:h:siemens:intermesh_7177_hybrid_2.0_subscriber:*:*:*:*:*:*:*:*
• cpe:2.3:h:siemens:intermesh_7707_fire_subscriber:*:*:*:*:*:*:*:*

External links

https://cert-portal.siemens.com/productcert/html/ssa-333468.html

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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