CVE-2010-2291 in VoIP Phone
Summary
by MITRE
Unspecified vulnerability in the web interface in snom VoIP Phone firmware 8 before 8.2.35 allows remote attackers to bypass intended restrictions and modify user credentials via unknown vectors. NOTE: some of these details are obtained from third party information.
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Analysis
by VulDB Data Team • 12/30/2017
The vulnerability identified as CVE-2010-2291 represents a critical security flaw in the web interface of snom VoIP phones running firmware versions prior to 8.2.35. This issue falls under the category of authentication bypass vulnerabilities, specifically targeting the web-based administration interface that users rely upon to configure and manage their VoIP devices. The flaw enables remote attackers to circumvent intended access controls and manipulate user credentials without proper authorization, fundamentally compromising the device's security posture and potentially exposing the entire communication infrastructure to unauthorized access.
The technical nature of this vulnerability stems from inadequate input validation and insufficient access control mechanisms within the web interface implementation. Attackers can exploit unknown vectors to bypass authentication checks and modify user credentials, which directly relates to CWE-287 - Improper Authentication and CWE-305 - Authentication Bypass Using Alternative Input. The vulnerability's remote exploitability means that attackers do not require physical access to the device or network proximity to carry out the attack, making it particularly dangerous in enterprise environments where VoIP systems are extensively deployed. The unspecified nature of the attack vectors suggests that the flaw may involve multiple pathways including but not limited to parameter manipulation, session handling issues, or improper privilege validation within the web application layer.
The operational impact of this vulnerability extends far beyond simple credential modification, as VoIP phones serve as critical communication infrastructure in business environments. An attacker who successfully exploits this vulnerability can gain unauthorized access to the device's administrative functions, potentially leading to complete device compromise, unauthorized call routing, eavesdropping on conversations, or even using the device as a pivot point for attacking other systems within the network. The compromise of user credentials within VoIP systems can result in significant business disruption, regulatory compliance violations, and potential financial losses due to unauthorized access to communication services. This vulnerability particularly affects organizations that rely on snom VoIP phones for their telephony infrastructure, as the attack can be executed from anywhere on the internet without requiring specialized tools or deep technical knowledge.
Organizations should implement immediate mitigation strategies including upgrading to firmware version 8.2.35 or later, which contains the necessary patches to address the authentication bypass vulnerability. Network segmentation should be implemented to limit access to VoIP devices, and administrative access should be restricted to trusted network segments only. Regular security assessments and vulnerability scanning should be conducted to identify similar issues in other networked devices. The ATT&CK framework categorizes this type of vulnerability under T1078 - Valid Accounts and T1566 - Phishing, as attackers can leverage compromised credentials to maintain persistent access and potentially escalate privileges within the network. Additionally, implementing network monitoring solutions that can detect unusual administrative access patterns and credential modification attempts will help in early detection of exploitation attempts. Organizations should also consider implementing multi-factor authentication for administrative access and ensuring that default credentials are changed immediately upon device deployment.