CVE-2022-41733 in InfoSphere Information Server
Summary
by MITRE • 01/20/2023
IBM InfoSphere Information Server 11.7 could allow a remote attacked to cause some of the components to be unusable until the process is restarted. IBM X-Force ID: 237583.
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Analysis
by VulDB Data Team • 01/21/2023
IBM InfoSphere Information Server version 11.7 contains a vulnerability that could enable a remote attacker to disrupt system components through a specific flaw in the application's processing mechanisms. This vulnerability falls under the category of denial of service conditions where malicious actors can exploit the weakness to render certain components non-functional. The affected system components require manual restart to restore normal operations, creating operational disruption that can impact business continuity and data processing workflows. The vulnerability stems from insufficient input validation or improper error handling within the server's processing logic, allowing crafted malicious inputs to trigger unexpected behavior in the application's runtime environment. Security researchers have identified that this weakness can be exploited remotely without requiring authentication credentials, making it particularly dangerous in networked environments where the server is accessible to external parties.
The technical implementation of this vulnerability involves a specific processing path within the InfoSphere Information Server that fails to properly handle certain input patterns or request structures. When an attacker sends carefully constructed requests to the affected server, the processing logic encounters an unexpected condition that causes specific components to enter a failed state. This failure mode typically manifests as component unresponsiveness or resource exhaustion that prevents legitimate users from accessing the system's functionality. The flaw likely resides in the application's request parsing or data handling modules where insufficient boundary checks or error recovery mechanisms exist. According to industry standards such as CWE-400, this vulnerability could be classified as a resource exhaustion issue or improper input validation problem that leads to denial of service conditions. The ATT&CK framework would categorize this as a denial of service technique under the system service hijacking or resource exhaustion tactics.
The operational impact of this vulnerability extends beyond simple service disruption as it creates cascading effects throughout the information server environment. Organizations relying on InfoSphere Information Server for critical data integration and processing tasks face potential business disruption when components become unavailable. The requirement for manual process restarts introduces significant downtime and administrative overhead that can be particularly problematic in production environments where continuous availability is essential. Attackers can leverage this vulnerability to create sustained service degradation that may go unnoticed until system monitoring alerts trigger notifications. The vulnerability's remote exploitation capability means that attackers do not need physical access or network proximity to cause disruption, making it a significant concern for organizations with exposed server instances. This type of vulnerability can also serve as a stepping stone for more sophisticated attacks where initial denial of service creates opportunities for additional exploitation attempts.
Organizations should implement immediate mitigations to protect their InfoSphere Information Server installations from this vulnerability. The most effective approach involves applying the vendor-provided security patches and updates that address the specific flaw in the processing logic. System administrators should also implement network-level restrictions to limit access to the affected server components, particularly by blocking unnecessary ports and implementing access controls. Monitoring solutions should be enhanced to detect unusual patterns of requests that may indicate exploitation attempts, and alerting mechanisms should be configured to notify administrators of potential service disruptions. Network segmentation strategies can help contain the impact of exploitation attempts and prevent lateral movement within the environment. Additionally, implementing automated restart procedures or health check mechanisms can reduce the time required to restore service when components are affected. Organizations should also conduct regular vulnerability assessments to identify similar weaknesses in other system components and ensure comprehensive security posture maintenance. The remediation process should include thorough testing of patches in non-production environments before deployment to avoid introducing new issues while addressing the existing vulnerability.