CVE-2010-2159 in DM Database Server
Summary
by MITRE
Dameng DM Database Server allows remote authenticated users to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors related to the SP_DEL_BAK_EXPIRED procedure in wdm_dll.dll, which triggers memory corruption.
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Analysis
by VulDB Data Team • 12/10/2024
The Dameng DM Database Server vulnerability identified as CVE-2010-2159 represents a critical security flaw within the database management system's dynamic link library components. This vulnerability specifically targets the SP_DEL_BAK_EXPIRED stored procedure located within the wdm_dll.dll module, which serves as a crucial component in the database's backup management functionality. The flaw manifests when authenticated remote users exploit specific conditions within this procedure, potentially leading to system instability and unauthorized code execution. The vulnerability's impact extends beyond simple denial of service, as it can result in complete system compromise through memory corruption attacks that may be leveraged for arbitrary code execution.
The technical nature of this vulnerability stems from improper memory handling within the wdm_dll.dll library, which falls under the category of memory corruption flaws as classified by CWE-121. The SP_DEL_BAK_EXPIRED procedure appears to process backup file deletion operations without adequate input validation or memory boundary checks, creating opportunities for attackers to manipulate memory structures through crafted inputs. This type of vulnerability aligns with ATT&CK technique T1059.007 for command and scripting interpreter, as successful exploitation could enable attackers to execute arbitrary commands on the affected system. The memory corruption occurs during the procedure's execution, potentially allowing attackers to overwrite critical memory segments or inject malicious code into the database process memory space.
The operational impact of CVE-2010-2159 is severe for organizations relying on Dameng DM Database Server, as it provides remote authenticated attackers with the capability to disrupt database services and potentially gain unauthorized access to sensitive data environments. The vulnerability's designation as a remote authenticated issue means that attackers do not require physical access to the system but can exploit it through network connections, making it particularly dangerous in enterprise environments where database servers are accessible over networks. The potential for arbitrary code execution transforms this vulnerability from a simple denial of service into a full compromise risk, as attackers could escalate privileges and establish persistent access to database systems. Organizations using this database platform face significant operational risks including data loss, service disruption, and potential regulatory compliance violations due to the vulnerability's severity.
Mitigation strategies for CVE-2010-2159 should focus on immediate patch management and access control measures to reduce the attack surface. Organizations should prioritize applying vendor-provided security updates that address the memory corruption issues within wdm_dll.dll and SP_DEL_BAK_EXPIRED procedure. Network segmentation and firewall rules should be implemented to restrict access to database servers, limiting the number of authenticated users who can reach vulnerable procedures. Additionally, implementing monitoring solutions that detect anomalous database activity patterns can help identify potential exploitation attempts. The vulnerability's classification as a memory corruption issue makes it particularly susceptible to exploitation techniques described in ATT&CK framework under T1068 for exploit for privilege escalation. Security teams should also consider implementing application whitelisting policies to prevent unauthorized code execution and establish comprehensive incident response procedures to address potential exploitation attempts. Regular vulnerability assessments and penetration testing should be conducted to identify similar memory corruption vulnerabilities within the database environment and other system components.