CVE-2001-1314 in Injoin Directory Server
Summary
by MITRE
Buffer overflows in Critical Path (1) InJoin Directory Server or (2) LiveContent Directory allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code, as demonstrated by the PROTOS LDAPv3 test suite.
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Analysis
by VulDB Data Team • 06/13/2024
The vulnerability identified as CVE-2001-1314 represents a critical buffer overflow flaw affecting Critical Path InJoin Directory Server and LiveContent Directory implementations. This security weakness stems from insufficient input validation mechanisms within the LDAPv3 protocol handling components of these directory services. The vulnerability specifically manifests when the software processes malformed LDAPv3 requests, particularly those generated by the PROTOS LDAPv3 test suite, which serves as a standardized method for testing LDAP server implementations. The buffer overflow occurs due to improper bounds checking when processing user-supplied data, allowing attackers to overwrite adjacent memory locations through carefully crafted input sequences. This flaw resides in the core protocol processing layer of the directory services, making it particularly dangerous as it affects fundamental network communication functions. The vulnerability is classified under CWE-121 as a stack-based buffer overflow, which occurs when a program writes data beyond the allocated buffer boundaries on the stack. The attack vector requires remote network access to the affected directory services, making it accessible to adversaries who can send malicious LDAP requests over the network without requiring local system access or authentication credentials.
The operational impact of this vulnerability extends beyond simple denial of service conditions to potentially enable remote code execution on affected systems. When exploited successfully, the buffer overflow can cause the directory server processes to crash and terminate unexpectedly, leading to complete service disruption for legitimate users who depend on these directory services for authentication, authorization, and directory lookups. The crash scenario represents a classic denial of service condition that can be leveraged to disrupt business operations and compromise system availability. However, the more concerning aspect of this vulnerability is its potential for remote code execution, which would allow attackers to gain unauthorized control over the affected systems. This capability arises from the memory corruption that occurs during the buffer overflow, potentially enabling attackers to inject and execute malicious code within the context of the running directory server processes. The exploitation of this vulnerability can result in complete system compromise, data theft, privilege escalation, and establishment of persistent backdoors within the network infrastructure.
Mitigation strategies for CVE-2001-1314 should prioritize immediate patching and updates from Critical Path software vendors to address the underlying buffer overflow conditions. Organizations should implement network segmentation and access controls to limit exposure of directory services to untrusted networks, reducing the attack surface available to potential adversaries. The implementation of intrusion detection systems capable of identifying malformed LDAPv3 requests can provide early warning of attempted exploitation attempts. Network administrators should also consider disabling unnecessary LDAP services and implementing strict input validation policies for all directory service communications. Security monitoring should focus on detecting unusual service termination patterns, memory allocation anomalies, and unexpected process crashes that may indicate exploitation attempts. Additionally, organizations should conduct thorough vulnerability assessments to identify all instances of affected Critical Path software deployments and ensure proper patch management procedures are in place. The remediation approach should align with established security frameworks such as those recommended by the Center for Internet Security and NIST guidelines for addressing buffer overflow vulnerabilities in network services. Regular security audits and penetration testing should be performed to verify that the implemented mitigations are effective and that no additional vulnerabilities exist within the directory service infrastructure.