Full Report
Devices based on RUGGEDCOM ROX before V2.17 contain multiple high severity vulnerabilities. Siemens has released a new version for RUGGEDCOM ROX II family and recommends to update to the latest version.
Analysis Summary
# Vulnerability: Multiple High Severity Flaws in RUGGEDCOM ROX Before V2.17
## CVE Details
The advisory covers multiple CVEs. While the summary mentions high severity, the specific details provided show several CVSS scores listed for different injection vulnerabilities based on CVSS v3.1 and v4.0 metrics:
* **CVSS v3.1 Base Score Range (for detailed CVEs found):** 7.2 (for CVE-2024-56838, 56839, 56840)
* **CVSS v4.0 Base Score Range (for detailed CVEs found):** 7.5 to 8.7 (The advisory header states an overall base score of 8.8 / 8.7, suggesting at least one unlisted CVE is higher, or the highest listed detailed CVE is 8.6/8.7)
* **Specific CVEs Detailed:** CVE-2024-56838, CVE-2024-56839, CVE-2024-56840 (and implicitly CVE-2024-56835, 56836, 56837).
* **CWE (for detailed CVEs):** CWE-77 (Command Injection), CWE-74 (Injection).
## Affected Systems
* **Products:** RUGGEDCOM ROX, specifically the RUGGEDCOM ROX II family, including:
* RUGGEDCOM ROX MX5000
* RUGGEDCOM ROX MX5000RE
* RUGGEDCOM ROX RX1400
* RUGGEDCOM ROX RX1500
* RUGGEDCOM ROX RX1501
* RUGGEDCOM ROX RX1510 (and likely others in the family)
* **Versions:** All versions **before V2.17.0**.
* **Configurations:** Vulnerabilities specific to SCEP client functionality (CVE-2024-56838) and the use of VRF (CVE-2024-56839).
## Vulnerability Description
The advisory indicates multiple vulnerabilities across the affected RUGGEDCOM ROX products. The detailed examples point towards code injection risks that can lead to remote arbitrary code execution as the root user:
1. **CVE-2024-56838 (Command Injection/CWE-77):** The SCEP client allows validation bypass in multiple fields, enabling an attacker to execute arbitrary code with root privileges.
2. **CVE-2024-56839 (Injection/CWE-74):** Code injection is possible when the device is utilizing VRF (Virtual Routing and Forwarding). This allows an attacker to execute arbitrary code as root.
3. **CVE-2024-56840 (Injection/CWE-74):** Under certain unspecified conditions related to IPsec, code injection can occur, leading to arbitrary code execution as root.
## Exploitation
* **Status:** The CVSS vectors indicate an Existence of Exploit Code (E:P). **This suggests that proof-of-concept (PoC) code or exploit techniques are available for at least some of these vulnerabilities.**
* **Complexity:** Low (AC:L) for the detailed CVEs, indicating exploitation is relatively easy once the prerequisite conditions are met.
* **Attack Vector:** Network (AV:N) for the detailed CVEs, meaning remote exploitation is possible. Authenticated access (PR:H) is generally required for the detailed vectors.
| Impact Area | Confidentiality | Integrity | Availability |
| :--- | :--- | :--- | :--- |
| **Impact Level** | High (C:H) | High (I:H) | High (A:H) |
## Remediation
### Patches
* **Action:** Update to version **V2.17.0 or later**.
* **Source:** Siemens support portal linked in the advisory (e.g., `https://support.industry.siemens.com/cs/ww/en/view/109997648/`).
### Workarounds
* The provided summary does not explicitly list technical workarounds, emphasizing the vendor recommendation to update to V2.17.0 or newer. Network segmentation and strict access control (due to the requirement for high privileges for exploitation) are implied mitigation measures if immediate patching is impossible.
## Detection
* **Indicators of Compromise (IOC):** Due to the nature of code/command injection leading to root execution, IOCs would heavily depend on post-exploitation activity (e.g., unusual process execution, creation of unauthorized user accounts, or unexpected network connections originating from the device).
* **Detection Methods and Tools:** Monitoring for unusual input patterns targeting the affected components (SCEP, VRF configuration interfaces, or IPsec negotiation attempts) from unauthorized sources should be prioritized.
## References
* Siemens Security Advisory SSA-912274
* Siemens ProductCERT Advisories: `https://www.siemens.com/cert/advisories` (Defanged)
* Siemens Support Information: `https://support.industry.siemens.com/cs/ww/en/view/109997648/` (Defanged)