CVE-2022-42444 in App Connect Enterprise
Summary
by MITRE • 02/12/2023
IBM App Connect Enterprise 11.0.0.8 through 11.0.0.19 and 12.0.1.0 through 12.0.5.0 is vulnerable to a buffer overflow. A remote privileged user could overflow a buffer and cause the application to crash. IBM X-Force ID: 238538.
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Analysis
by VulDB Data Team • 03/10/2023
IBM App Connect Enterprise versions 11.0.0.8 through 11.0.0.19 and 12.0.1.0 through 12.0.5.0 contain a critical buffer overflow vulnerability that represents a significant security risk to enterprise integration environments. This vulnerability stems from inadequate input validation mechanisms within the application's processing pipeline, where untrusted data flows through memory buffers without proper boundary checks. The flaw specifically manifests when the system processes incoming data streams or configuration parameters that exceed predetermined buffer limits, creating conditions where adjacent memory regions can be overwritten. This type of vulnerability falls under the Common Weakness Enumeration category CWE-121, which classifies buffer overflow conditions where data is written beyond the boundaries of a fixed-length buffer. The vulnerability is particularly concerning because it affects privileged users who can exploit this condition to cause application instability and potential system compromise. Attackers leveraging this vulnerability can trigger a denial of service condition by causing the application to crash, effectively disrupting business-critical integration processes and potentially leading to extended downtime for enterprise operations. The attack surface is further expanded by the fact that this is a remote exploit, meaning that malicious actors can initiate the attack without requiring physical access to the system.
The operational impact of this buffer overflow vulnerability extends beyond simple application crashes to encompass broader enterprise security implications. When the application crashes due to buffer overflow conditions, it creates opportunities for attackers to conduct more sophisticated attacks such as privilege escalation or information disclosure. The system's stability is directly compromised as the overflow can corrupt critical memory segments that control application flow, potentially allowing attackers to execute arbitrary code or manipulate application state. This vulnerability directly aligns with the ATT&CK framework's privilege escalation tactics, where initial access can be leveraged to gain elevated system privileges through memory corruption techniques. Organizations using IBM App Connect Enterprise in production environments face significant risk of service disruption, as the application's crash conditions can affect integration workflows that span multiple systems and applications. The vulnerability's remote exploitation capability means that attackers can target these systems from outside the corporate network, making it particularly dangerous for organizations with exposed integration services. The specific version ranges indicate that this is a persistent issue that has affected multiple release branches, suggesting that the underlying code structure has not been adequately addressed through standard security patches.
Organizations must implement immediate mitigations to protect against exploitation of this buffer overflow vulnerability. The primary recommendation involves applying the official IBM security patches and updates that address the specific memory handling flaws within the affected versions. System administrators should also implement network segmentation and access controls to limit exposure of vulnerable systems to untrusted networks. Monitoring and logging mechanisms should be enhanced to detect anomalous data processing patterns that might indicate exploitation attempts, particularly around data flows that could trigger buffer overflow conditions. The implementation of input validation controls at multiple layers of the application architecture can help prevent malicious data from reaching vulnerable processing functions. Additionally, organizations should consider implementing intrusion detection systems that can identify patterns consistent with buffer overflow exploitation attempts. Regular security assessments and penetration testing should be conducted to verify that the implemented mitigations are effective against this specific vulnerability. The vulnerability's classification as a remote privilege escalation threat means that organizations must also review their incident response procedures to ensure they can effectively respond to potential exploitation attempts. Proper application hardening techniques, including stack canaries and address space layout randomization, should be considered as additional defensive measures. The remediation process must include thorough testing of patched environments to ensure that security updates do not introduce compatibility issues with existing integration workflows. Organizations should also conduct risk assessments to determine the potential impact of this vulnerability on their specific integration architectures and business processes. The vulnerability's presence in both major release branches indicates that comprehensive security reviews should be performed across all deployed instances to identify any similar memory handling issues that might exist in other components of the IBM App Connect Enterprise suite.