CVE-2022-35677 in Framemaker
Summary
by MITRE • 08/11/2022
Adobe FrameMaker versions 2019 Update 8 (and earlier) and 2020 Update 4 (and earlier) are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
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Analysis
by VulDB Data Team • 08/11/2022
Adobe FrameMaker versions 2019 Update 8 and earlier, along with 2020 Update 4 and earlier, contain a critical heap-based buffer overflow vulnerability designated as CVE-2022-35677. This vulnerability resides within the application's handling of specially crafted input files and represents a serious security flaw that could enable remote code execution when exploited. The vulnerability manifests when the software processes malformed input data, specifically within the memory management routines that handle buffer allocations. The heap-based nature of this buffer overflow indicates that the flaw occurs in dynamically allocated memory regions, making it particularly dangerous as attackers can manipulate memory layout and potentially overwrite critical program structures. According to CWE-122, this vulnerability maps directly to heap-based buffer overflow conditions where insufficient bounds checking allows writing beyond allocated memory boundaries.
The exploitation of CVE-2022-35677 requires user interaction through social engineering tactics, as victims must actively open a maliciously crafted file to trigger the vulnerability. This user interaction requirement places the attack surface within the realm of targeted phishing campaigns or malicious document delivery methods, aligning with ATT&CK technique T1204.201 for legitimate user execution. The vulnerability operates by causing the application to allocate insufficient memory for processing the malicious input, leading to a buffer overflow that can be leveraged to execute arbitrary code with the privileges of the currently logged-in user. This privilege escalation capability significantly increases the potential impact of exploitation, as it allows attackers to gain persistent access to systems without requiring administrative privileges.
The operational impact of this vulnerability extends beyond simple code execution, as it represents a complete compromise of the affected system's security posture. Attackers could potentially install backdoors, exfiltrate sensitive data, or establish persistent command and control channels through the executed malicious code. The vulnerability affects a wide range of FrameMaker versions, indicating a prolonged exposure window that could have allowed extensive exploitation across enterprise environments. Organizations using these legacy versions face significant risk, particularly in environments where users regularly handle documents from external sources or where document sharing occurs across untrusted networks. The memory corruption resulting from this vulnerability can also lead to application crashes or unexpected behavior, potentially causing data loss or system instability.
Mitigation strategies for CVE-2022-35677 should prioritize immediate patching of affected Adobe FrameMaker installations to the latest available versions. Organizations should implement strict document handling policies that restrict opening of untrusted files, particularly those received via email or downloaded from unverified sources. Network-based protections such as email filtering and web proxies can help prevent initial delivery of malicious documents. Security teams should also consider implementing application whitelisting to restrict execution of unauthorized software and monitor for unusual process behavior that might indicate exploitation attempts. System administrators should review user access controls to minimize privilege levels where possible, ensuring that even if exploitation occurs, the attacker's capabilities remain limited. Additionally, regular security awareness training for end users can help reduce the success rate of social engineering attacks that rely on user interaction to trigger the vulnerability. The remediation process should include comprehensive testing of patched versions to ensure that the security update does not introduce compatibility issues with existing workflows or document processing requirements.