CVE-2007-3373 in Cluster Suite
Summary
by MITRE
daemon.c in cman (redhat-cluster-suite) before 20070622 does not clear a buffer for reading requests, which might allow local users to obtain sensitive information from previous requests.
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Analysis
by VulDB Data Team • 10/25/2017
The vulnerability identified as CVE-2007-3373 resides within the cman component of the Red Hat Cluster Suite, specifically in the daemon.c file. This issue represents a classic buffer management flaw that affects the secure handling of memory operations within a cluster management daemon. The cman service operates as a critical component in Red Hat's clustering infrastructure, responsible for managing cluster communication and coordination between nodes in a high-availability environment. The vulnerability manifests when the daemon processes incoming requests without properly clearing memory buffers between operations, creating potential information leakage scenarios that could compromise sensitive data.
The technical flaw stems from improper buffer handling practices where memory allocated for processing cluster requests retains data from previous operations. This insecure memory management pattern creates a condition where residual information from prior requests remains accessible in memory locations that are subsequently reused for new requests. The vulnerability is classified as a memory exposure issue that aligns with CWE-248, which addresses the exposure of sensitive information through improper memory handling. When local users execute malicious requests against the cman daemon, they can potentially access residual data that was previously stored in the same memory buffers, effectively enabling information disclosure attacks.
The operational impact of this vulnerability extends beyond simple information leakage, as it fundamentally undermines the security posture of cluster environments where cman operates. In high-availability systems, the cman daemon serves as a critical communication channel between cluster nodes, making it an attractive target for attackers seeking to extract sensitive configuration data, authentication tokens, or other confidential information. The vulnerability affects systems running Red Hat Cluster Suite versions prior to 20070622, representing a significant security gap that could be exploited by local users with access to the system. This flaw particularly impacts environments where cluster management requires secure handling of sensitive operational data, as the information leakage could potentially reveal network configurations, node identifiers, or other operational details that could aid in further attacks.
Mitigation strategies for CVE-2007-3373 focus on implementing proper memory clearing procedures and updating to patched versions of the Red Hat Cluster Suite. Organizations should immediately apply the security patches released by Red Hat that address this specific buffer clearing vulnerability in the daemon.c file. The remediation approach aligns with defensive programming practices recommended in the ATT&CK framework under the technique of privilege escalation through memory corruption. System administrators should also implement monitoring solutions to detect unusual patterns in cluster daemon operations that might indicate exploitation attempts. Additionally, organizations should consider implementing network segmentation and access controls to limit local user access to cluster management components, reducing the attack surface for this type of information disclosure vulnerability. The fix typically involves ensuring that memory buffers are properly zeroed or cleared between request processing cycles, preventing residual data from being accessible to subsequent operations.