A vulnerability has been identified in multiple Siemens SCALANCE products, specifically affecting devices such as SCALANCE WAB762-1, SCALANCE WAM763-1, SCALANCE WAM766-1, and others. This vulnerability allows for incorrect authorization in SNMPv3 View configuration, which could enable an attacker to change the View Type of SNMPv3 Views. The affected versions are all versions prior to V3.0.0.
With a CVSS score of 5.3, this vulnerability is categorized as medium severity. It poses a substantial risk to organizations utilizing these devices, especially in environments where SNMPv3 is employed for network management. The potential for unauthorized changes to SNMP configurations could lead to further exploitation or manipulation of network traffic.
Organizations should prioritize patching immediately to mitigate the risks associated with this vulnerability. The urgency is underscored by the low attack complexity and the fact that it requires only low privileges to exploit, making it accessible for attackers.
As of now, there are no known public exploits or proofs of concept available. However, organizations should remain vigilant and monitor their systems for any unusual activities related to SNMP configurations.
For further information, the vulnerability was disclosed on February 11, 2025, and is currently marked as deferred in the status.
Vulnerability Details
The identified vulnerability in the SCALANCE products allows an attacker with user-role access to manipulate SNMPv3 view configurations. The specific products affected include SCALANCE WAB762-1, SCALANCE WAM763-1, SCALANCE WAM766-1, and others, all versions lower than V3.0.0.
The CVSS score of 5.3 indicates a medium severity level. The vulnerability is categorized under CWE-284, which relates to improper access control. Such a vulnerability can lead to unauthorized modifications and potentially compromise the integrity of the affected systems.
Technical Analysis
The root cause of the vulnerability stems from an incorrect authorization mechanism within the SNMPv3 View configuration. Attackers may leverage this weakness through a network attack vector, requiring low attack complexity and low privileges to exploit. Importantly, user interaction is not required, allowing for remote exploitation.
In terms of impact, the confidentiality is not affected, while integrity is rated as low. The availability impact is also none, indicating that while data integrity might be compromised, the overall system availability remains intact.
Risk & Impact Analysis
Risk to organizations includes potential unauthorized access and manipulation of SNMP configurations, which can lead to further exploitation of network resources. Given the medium severity score, organizations must assess their exposure and prioritize remediation efforts accordingly. The urgency for organizations to address this vulnerability is elevated, especially in critical infrastructure settings where SCALANCE devices are deployed.
The blast radius potential is significant, as multiple products are affected, implying widespread implications across various deployments. Organizations should incorporate this vulnerability into their risk management frameworks and ensure that their defenses are updated.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The vulnerability impacts various Siemens SCALANCE products, specifically all versions prior to V3.0.0. This includes models such as SCALANCE WAB762-1, SCALANCE WAM763-1, SCALANCE WAM766-1, and others. Organizations using these devices should ensure they are updated to the latest versions to mitigate risks.
Mitigation & Remediation
Organizations should prioritize patching immediately by updating affected devices to versions V3.0.0 or later. If an upgrade is not immediately feasible, implementing configuration hardening for SNMP settings can help mitigate risks. Additionally, organizations can enhance their security posture through penetration testing to identify potential weaknesses in their configurations.
Detection Guidance
To detect potential exploitation attempts, organizations should monitor logs for any unauthorized changes to SNMP configurations or access attempts from unknown sources. Behavioral anomalies, such as unexpected SNMP traffic patterns, should also be analyzed to identify potential threats.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability underscores the importance of robust access control mechanisms, especially in networked environments. As organizations increasingly rely on SNMP for network management, the potential for exploitation remains a critical concern. Security teams should conduct regular assessments and ensure that their security frameworks are adapted to address emerging vulnerabilities.
This incident reflects a broader trend in vulnerabilities related to improper access control, which has been a focal point for attackers. Organizations must remain vigilant and proactive in their security measures. To further understand these trends, security teams are encouraged to review insights from the vulnerability management program to enhance their defensive strategies.
Additionally, teams should familiarize themselves with the latest best practices in penetration testing methodology to ensure they are prepared against similar vulnerabilities in the future.
Finally, organizations should keep abreast of emerging threats and the evolving landscape of vulnerabilities within their technology stack.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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