CVE-2012-4148 in Acrobat Reader
Summary
by MITRE
Adobe Reader and Acrobat 9.x before 9.5.2 and 10.x before 10.1.4 on Windows and Mac OS X allow attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2012-2051, CVE-2012-4147, CVE-2012-4149, CVE-2012-4150, CVE-2012-4151, CVE-2012-4152, CVE-2012-4153, CVE-2012-4154, CVE-2012-4155, CVE-2012-4156, CVE-2012-4157, CVE-2012-4158, CVE-2012-4159, and CVE-2012-4160.
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Analysis
by VulDB Data Team • 10/14/2018
This vulnerability affects Adobe Reader and Acrobat versions prior to 9.5.2 and 10.1.4 on Windows and Mac OS X systems, representing a critical memory corruption flaw that can be exploited to achieve arbitrary code execution or cause denial of service conditions. The vulnerability stems from unspecified vectors within the software's processing mechanisms, making it particularly challenging to predict and defend against. Unlike other related vulnerabilities in the same timeframe such as CVE-2012-2051 and CVE-2012-4147, this flaw operates through distinct exploitation pathways that require specific conditions to be met for successful compromise. The memory corruption aspect indicates that attackers can manipulate heap or stack memory structures through crafted malicious documents, potentially leading to complete system compromise. This vulnerability aligns with CWE-119 which describes weaknesses in memory management, particularly focusing on improper handling of memory access violations that can result in code execution. The attack surface extends across multiple operating systems, making it a cross-platform threat that requires comprehensive remediation strategies.
The technical implementation of this vulnerability involves sophisticated exploitation techniques that leverage memory corruption patterns common in PDF processing engines. Attackers can craft malicious PDF documents that, when opened by vulnerable Adobe Reader or Acrobat versions, trigger memory corruption conditions in the application's parsing routines. These conditions can manifest as buffer overflows, use-after-free errors, or other memory management flaws that allow attackers to inject and execute arbitrary code within the context of the target application. The memory corruption typically occurs during the processing of specific PDF elements such as embedded objects, fonts, or graphics rendering components, where insufficient bounds checking or improper memory allocation leads to exploitable conditions. The vulnerability's classification under the broader ATT&CK framework would fall within the T1059.007 technique category for abuse of Windows Command Shell, as successful exploitation could enable attackers to execute commands with the privileges of the affected application. The lack of specific vector information in the CVE description suggests that multiple attack paths may exist, requiring security researchers to analyze various PDF parsing components for potential exploitation opportunities.
The operational impact of this vulnerability extends beyond simple exploitation capabilities to encompass significant business continuity and security risks for organizations relying on Adobe Reader for document processing. Organizations using vulnerable versions of Adobe Reader and Acrobat face potential unauthorized access to sensitive documents, data exfiltration, and complete system compromise through privilege escalation attacks. The denial of service aspect creates additional operational challenges where legitimate users may experience application crashes or system instability when processing certain PDF files, leading to productivity losses and increased support overhead. Security teams must implement immediate remediation measures including mandatory software updates, network segmentation, and user education to prevent exploitation attempts. The vulnerability's presence in widely deployed software means that organizations must coordinate patch management across their enterprise environments, often requiring careful planning to avoid disrupting critical business operations. Incident response procedures should include specific protocols for identifying and isolating potentially compromised systems, as well as monitoring for exploitation attempts through network traffic analysis and endpoint detection systems.
Mitigation strategies for this vulnerability should encompass both immediate remediation actions and long-term security enhancements to prevent similar issues in the future. The primary recommendation involves applying the official Adobe security patches released for versions 9.5.2 and 10.1.4, which address the underlying memory corruption issues in the PDF processing engine. Organizations should implement automated patch management systems to ensure all endpoints receive updates promptly, particularly given the widespread use of Adobe Reader in corporate environments. Network-based defenses should include PDF content filtering and sandboxing solutions that can analyze document content before delivery to end users, reducing the risk of exploitation through malicious attachments. Endpoint protection measures should be enhanced with behavioral monitoring capabilities that can detect anomalous memory access patterns or code injection attempts that may indicate exploitation of this vulnerability. Security awareness training should emphasize the importance of verifying document sources and avoiding suspicious PDF files, particularly those received through email or untrusted websites. The vulnerability highlights the importance of regular security assessments and penetration testing to identify similar memory corruption issues in other software components, supporting the broader security posture through proactive vulnerability management and continuous monitoring of emerging threats in the cybersecurity landscape.