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ICSA-24-303-01: Siemens InterMesh Subscriber Devices ↗ source

October 29, 2024 CISA ICS Advisory

Summary

InterMesh Subscriber devices contain multiple vulnerabilities that could allow an unauthenticated remote attacker to execute arbitrary code with root privileges. Siemens has released new versions for the affected products and recommends to update to the latest versions. CVE-2024-47901: The web server of affected devices does not sanitize the input parameters in specific GET requests that allow for code execution on operating system level. In combination with other vulnerabilities (CVE-2024-47902, CVE-2024-47903, CVE-2024-47904) this could allow an unauthenticated remote attacker to execute arbitrary code with root privileges. CVE-2024-47902: The web server of affected devices does not authenticate GET requests that execute specific commands (such as `ping`) on operating system level. CVE-2024-47903: The web server of affected devices allows to write arbitrary files to the web server's DocumentRoot directory. CVE-2024-47904: The affected devices contain a SUID binary that could allow an authenticated local attacker to execute arbitrary commands with root privileges.

Advisory Details CISA ICS CSAF feed

Advisory ID
ICSA-24-303-01
Status
Final · version 2
Initial release
2024-10-23
Last revised
2025-05-06 (2 revisions)
Vendor
Siemens
Critical infrastructure sectors
Multiple
Deployed
Worldwide
Vendor headquarters
Germany

Republished vendor advisory. This CISA CSAF advisory was converted from Siemens ProductCERT's CSAF advisory.

General Recommendations: As a general security measure Siemens strongly recommends to protect network access to affected products with appropriate mechanisms. It is advised to follow recommended security practices in order to run the devices in a protected IT environment.

Additional Resources: For further inquiries on security vulnerabilities in Siemens products and solutions, please contact the Siemens ProductCERT: https://www.siemens.com/cert/advisories

Credit: AES Corporation; Jean Pereira (CYTRES); Siemens ProductCERT

Affected products (2)
  • InterMesh 7177 Hybrid 2.0 Subscriber — <V8.2.12
  • InterMesh 7707 Fire Subscriber — <V7.2.12
Revision history (2)
  • 2025-05-06 — v2: Revision - Fixing typos
  • 2024-10-23 — v1: Publication Date

From CISA's machine-readable CSAF 2.0 advisory (JSON).

Vulnerabilities as Stated by the Advisory

CVEWeaknessCVSS v3Details
CVE-2024-47901 CWE-78 Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') 10.0 Critical CVE-2024-47901
The web server of affected devices does not sanitize the input parameters in specific GET requests that allow for code execution on operating system level. In combination with other vulnerabilities (CVE-2024-47902, CVE-2024-47903, CVE-2024-47904) this could allow an unauthenticated remote attacker to execute arbitrary code with root privileges.

Mitigation: Disable the IP interface

Vendor fix: Update to V7.2.12 or later version

Vendor fix: Update to V8.2.12 or later version

Affected, fixed & timeline

Affected:

  • InterMesh 7177 Hybrid 2.0 Subscriber <V8.2.12
  • InterMesh 7707 Fire Subscriber <V7.2.12

Workaround: Restrict access to the InterMesh network to trusted systems and persons only

CVE-2024-47904 CWE-266 Incorrect Privilege Assignment 7.8 High CVE-2024-47904
The affected devices contain a SUID binary that could allow an authenticated local attacker to execute arbitrary commands with root privileges.

Mitigation: Disable the IP interface

Vendor fix: Update to V7.2.12 or later version

Vendor fix: Update to V8.2.12 or later version

Affected, fixed & timeline

Affected:

  • InterMesh 7177 Hybrid 2.0 Subscriber <V8.2.12
  • InterMesh 7707 Fire Subscriber <V7.2.12

Workaround: Restrict access to the InterMesh network to trusted systems and persons only

CVE-2024-47902 CWE-306 Missing Authentication for Critical Function 7.2 High CVE-2024-47902
The web server of affected devices does not authenticate GET requests that execute specific commands (such as `ping`) on operating system level.

Mitigation: Disable the IP interface

Vendor fix: Update to V7.2.12 or later version

Vendor fix: Update to V8.2.12 or later version

Affected, fixed & timeline

Affected:

  • InterMesh 7177 Hybrid 2.0 Subscriber <V8.2.12
  • InterMesh 7707 Fire Subscriber <V7.2.12

Workaround: Restrict access to the InterMesh network to trusted systems and persons only

CVE-2024-47903 CWE-250 Execution with Unnecessary Privileges 5.8 Medium CVE-2024-47903
The web server of affected devices allows to write arbitrary files to the web server's DocumentRoot directory.

Mitigation: Disable the IP interface

Vendor fix: Update to V7.2.12 or later version

Vendor fix: Update to V8.2.12 or later version

Affected, fixed & timeline

Affected:

  • InterMesh 7177 Hybrid 2.0 Subscriber <V8.2.12
  • InterMesh 7707 Fire Subscriber <V7.2.12

Workaround: Restrict access to the InterMesh network to trusted systems and persons only

Scores and weakness types are as CISA or the republishing vendor stated them in this advisory; the linked CVE pages carry the independently enriched CVSS and SSVC assessments.

News Coverage

No coverage found in monitored research blogs or news feeds.

CVEs Referenced in This Publication

CVECVSSAffected
CVE-2024-47901 10.0 Critical Siemens InterMesh 7177 Hybrid 2.0 Subscriber A vulnerability has been identified in InterMesh 7177 Hybrid 2.0 Subscriber (All versions < V8.2.12), InterMesh 7707 Fire Subscriber (All versions < …
CVE-2024-47904 7.8 High Siemens InterMesh 7177 Hybrid 2.0 Subscriber A vulnerability has been identified in InterMesh 7177 Hybrid 2.0 Subscriber (All versions < V8.2.12), InterMesh 7707 Fire Subscriber (All versions < …
CVE-2024-47902 7.2 High Siemens InterMesh 7177 Hybrid 2.0 Subscriber A vulnerability has been identified in InterMesh 7177 Hybrid 2.0 Subscriber (All versions < V8.2.12), InterMesh 7707 Fire Subscriber (All versions < …
CVE-2024-47903 5.8 Medium Siemens InterMesh 7177 Hybrid 2.0 Subscriber A vulnerability has been identified in InterMesh 7177 Hybrid 2.0 Subscriber (All versions < V8.2.12), InterMesh 7707 Fire Subscriber (All versions < …

Named by the advisory itself. Each CVE links to its tracked detail page.

Vendors Named in This Publication

Each vendor links to its Known Exploited Vulnerabilities catalog page. Only vendors that appear in the KEV catalog are listed, either because the publication cites one of their KEV entries or because it names them directly.