Schneider Electric VAMPSET Stack Buffer Overflow Vulnerability (CVE-2014-5407)

Key Information Overview Discoverer: Aivar Liimets of Martem AS Vulnerability Type: Buffer Overflow Reporting Process: Reported directly to Schneider Electric, then to NCCIC/ICS-CERT Update Status: Schneider Electric has provided an update that addresses the vulnerability Affected Products Version: VAMPSET v2.2.136 and all previous versions Impact Software Behavior: Attempting to open a corrupted file causes the VAMPSET software to stop responding Operating System Impact: Windows system remains operational, but VAMPSET becomes unresponsive until the associated process terminates Impact per Organization: Depends on unique organizational factors; impact should be assessed based on operational environment, architecture, and product implementation Vulnerability Characteristics Vulnerability Type: Stack-based Buffer Overflow CVE ID: CVE-2014-5407NVD CVSS Score: 4.1 CVSS Vector String: (AV:L/AC:M/Au:S/C:P/I:P/A:P) Vulnerability Details Exploitability: Triggered only when a local user runs the vulnerable application and loads a malicious VAMPSET settings file Public Exploits: No known public attacks specifically targeting this vulnerability Exploit Difficulty: Creating an exploit for this vulnerability is difficult; requires social engineering Mitigation Measures 1. Schneider Electric Update: Use VAMPSET v2.2.145 or later 2. Best Practices: Implement best IT security practices for computers and relay configuration files; use User Access Control (UAC) 3. User Recommendation: Users who do not frequently use the software should uninstall it to reduce attack surface 4. Network and Remote Access Security: Minimize network exposure; isolate control system devices or systems; avoid direct internet access; if remote access is required, use secure methods such as VPN 5. Protective Measures: Install software updates from UTM research; implement additional protective measures to defend against this vulnerability and other cybersecurity risks

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Schneider Electric VAMPSET Stack Buffer Overflow Vulnerability (CVE-2014-5407)