CVE-2006-3941 in N1 Grid Engine
Summary
by MITRE
Unspecified vulnerability in the daemons for Sun N1 Grid Engine 5.3 and N1 Grid Engine 6.0 allows local users to cause a denial of service (grid service shutdown) and possibly execute arbitrary code using buffer overflows via unknown vectors that cause (1) qmaster or (2) execd to terminate.
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Analysis
by VulDB Data Team • 11/24/2024
The vulnerability described in CVE-2006-3941 represents a critical security flaw within the Sun N1 Grid Engine distributed computing platform versions 5.3 and 6.0. This issue affects the core daemon processes that manage job scheduling and execution across distributed computing environments. The vulnerability manifests as unspecified buffer overflow conditions that can be exploited by local users to compromise the integrity and availability of the grid computing infrastructure. These daemon processes serve as the fundamental components that coordinate distributed workloads across multiple nodes in the grid environment, making their stability crucial for overall system operation.
The technical nature of this vulnerability involves buffer overflow conditions within the qmaster and execd daemon processes, which are responsible for managing job scheduling and execution respectively. Buffer overflows occur when more data is written to a fixed-length buffer than it can accommodate, leading to memory corruption that can be exploited to execute arbitrary code or cause system termination. The qmaster daemon handles the central scheduling and management of jobs across the grid, while the execd daemon manages job execution on individual compute nodes. When these processes encounter malformed input data through unspecified vectors, they can experience memory corruption that results in immediate process termination or potential code execution.
The operational impact of this vulnerability extends beyond simple denial of service conditions to potentially enable arbitrary code execution within the grid environment. Local users who can access these daemons may leverage the buffer overflow conditions to escalate privileges and gain unauthorized access to the grid computing infrastructure. This creates a significant risk for organizations relying on Sun N1 Grid Engine for distributed computing workloads, as compromised daemons could allow attackers to manipulate job scheduling, access sensitive computational resources, or disrupt the entire grid service. The vulnerability particularly affects environments where multiple users share access to the same grid infrastructure, as local access can be gained through legitimate user accounts or compromised credentials.
Security professionals should recognize this vulnerability as aligning with CWE-121, which describes stack-based buffer overflow conditions, and CWE-122, which covers heap-based buffer overflows that can lead to memory corruption. The attack vectors for this vulnerability fall under the ATT&CK framework's privilege escalation and denial of service tactics, specifically targeting the execution of malicious code through system daemon manipulation. Organizations should implement immediate mitigations including applying vendor patches, restricting local access to grid daemon processes, monitoring for abnormal process termination patterns, and implementing network segmentation to limit the potential impact of exploitation. The vulnerability demonstrates the critical importance of secure coding practices in distributed computing systems where daemon processes handle sensitive operational data and maintain system integrity across multiple nodes.