CVE-2001-0236 in Solaris
Summary
by MITRE
Buffer overflow in Solaris snmpXdmid SNMP to DMI mapper daemon allows remote attackers to execute arbitrary commands via a long "indication" event.
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Analysis
by VulDB Data Team • 10/07/2025
The vulnerability identified as CVE-2001-0236 represents a critical buffer overflow flaw within the Solaris snmpXdmid daemon, which serves as an SNMP to DMI mapper component in Oracle Solaris operating systems. This daemon facilitates communication between SNMP (Simple Network Management Protocol) and DMI (Desktop Management Interface) systems, enabling network management capabilities for hardware monitoring and configuration. The vulnerability specifically manifests when processing SNMP indication events, which are asynchronous notifications sent by SNMP agents to management stations. The flaw occurs due to insufficient input validation and bounds checking within the daemon's handling of these event strings, creating a condition where maliciously crafted input can exceed the allocated buffer space and overwrite adjacent memory regions.
The technical implementation of this vulnerability stems from improper buffer management within the snmpXdmid daemon's code structure, where a fixed-size buffer is used to store incoming SNMP indication events without adequate length verification. This classic buffer overflow condition allows attackers to craft specially formatted SNMP indication messages containing excessive data that overflows the designated buffer and potentially corrupts the stack memory. The overflow can overwrite return addresses, function pointers, and other critical program state information, providing attackers with the opportunity to redirect program execution flow. According to CWE classification, this vulnerability maps to CWE-121, which describes heap-based buffer overflow conditions, and CWE-787, which covers out-of-bounds write vulnerabilities. The attack vector operates entirely over the network, requiring no local access or authentication, making it particularly dangerous for systems exposed to untrusted networks.
The operational impact of this vulnerability extends beyond simple denial of service scenarios, as it enables remote code execution capabilities that can be leveraged for complete system compromise. Attackers can exploit this vulnerability to execute arbitrary commands with the privileges of the snmpXdmid daemon process, which typically runs with elevated permissions due to its system management function. This privilege escalation capability can result in full system control, data exfiltration, persistent backdoor installation, and further lateral movement within network environments. The vulnerability affects multiple Solaris versions including Solaris 2.5.1, 2.6, 7, 8, and 9, making it particularly widespread across enterprise network infrastructures that rely on SNMP-based monitoring systems. Organizations utilizing SNMP management protocols for network infrastructure monitoring face significant risk exposure, as the vulnerability can be exploited by attackers who gain access to the network segment hosting affected Solaris systems.
Mitigation strategies for CVE-2001-0236 require immediate implementation of security patches provided by Oracle, which address the buffer overflow condition through proper input validation and bounds checking mechanisms. System administrators should prioritize patch deployment across all affected Solaris installations, particularly those with SNMP services enabled and exposed to external networks. Network segmentation and firewall rules should be implemented to restrict SNMP traffic to trusted management stations only, reducing the attack surface available to potential adversaries. Additionally, monitoring for suspicious SNMP traffic patterns and implementing intrusion detection systems can help identify exploitation attempts. From an ATT&CK framework perspective, this vulnerability aligns with techniques such as T1059.007 (Command and Scripting Interpreter: Python) and T1068 (Exploitation for Privilege Escalation), as attackers can leverage the remote execution capability to gain elevated system privileges. Organizations should also consider implementing network access controls to limit which systems can communicate with SNMP services, and establish regular vulnerability scanning procedures to identify similar buffer overflow conditions in other network management components. The remediation process must include thorough testing of patches in production environments to ensure compatibility with existing network management workflows while maintaining system stability and operational continuity.