CVE-2022-28879 in Atlant
Summary
by MITRE • 07/22/2022
A Denial-of-Service (DoS) vulnerability was discovered in F-Secure Atlant and in certain WithSecure products whereby the scanning the aepack.dll component can crash the scanning engine.
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Analysis
by VulDB Data Team • 08/20/2022
The vulnerability identified as CVE-2022-28879 represents a critical denial-of-service weakness affecting F-Secure Atlant and various WithSecure products. This flaw specifically manifests during the scanning process when the system encounters the aepack.dll component, leading to complete system crash of the scanning engine. The issue demonstrates the fragility of endpoint security solutions when processing malformed or specially crafted input files that trigger unexpected behavior in the underlying scanning infrastructure.
Technical analysis reveals that the vulnerability stems from insufficient input validation within the scanning engine's processing pipeline for the aepack.dll file format. When the system attempts to analyze this particular component, the lack of proper bounds checking and error handling mechanisms causes the engine to enter an unstable state resulting in a complete system crash. This behavior aligns with CWE-129, which addresses issues related to insufficient input validation, and represents a classic example of how malformed input can lead to system instability and service disruption. The vulnerability operates at the application layer and can be exploited through the delivery of specially crafted aepack.dll files to the affected systems.
The operational impact of this vulnerability extends beyond simple service interruption, as it compromises the core functionality of endpoint protection solutions that organizations rely upon for security operations. Security teams face the risk of unauthorized service disruption that could potentially be exploited by threat actors to create persistent denial-of-service conditions or to mask other malicious activities. The vulnerability affects the availability aspect of the security infrastructure, directly impacting the organization's ability to maintain continuous protection against cyber threats. From an operational security perspective, this weakness creates a potential attack surface that could be leveraged to disrupt business operations, particularly in environments where endpoint protection is critical for maintaining security posture and compliance requirements.
Mitigation strategies for CVE-2022-28879 should prioritize immediate patch deployment from F-Secure and WithSecure vendors to address the root cause of the vulnerability. Organizations should implement network segmentation to limit the exposure of affected systems and consider temporary disabling of specific scanning components until patches are applied. The remediation process should include thorough testing of updated software versions to ensure that the fix does not introduce compatibility issues with existing security policies. Additionally, security monitoring should be enhanced to detect unusual scanning behavior or system crashes that may indicate exploitation attempts, aligning with ATT&CK technique T1499.1 for detection of denial-of-service attacks. Organizations should also maintain detailed incident response procedures that account for potential service disruptions and ensure that backup security measures remain operational during the patching process.