CVE-2012-2050 in Acrobat Reader
Summary
by MITRE
Buffer overflow in Adobe Reader and Acrobat 9.x before 9.5.2 and 10.x before 10.1.4 on Windows and Mac OS X allows attackers to execute arbitrary code via unspecified vectors.
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Analysis
by VulDB Data Team • 10/14/2018
The vulnerability identified as CVE-2012-2050 represents a critical buffer overflow flaw affecting Adobe Reader and Acrobat software versions prior to 9.5.2 and 10.1.4 across Windows and Mac OS X operating systems. This vulnerability falls under the CWE-121 category of stack-based buffer overflow, where insufficient bounds checking allows malicious data to overwrite adjacent memory locations. The flaw specifically manifests in the handling of malformed input within the PDF processing engine, creating an exploitable condition that can be triggered through crafted PDF documents. Attackers can leverage this vulnerability to execute arbitrary code with the privileges of the victim user, potentially leading to complete system compromise. The vulnerability impacts a wide range of users since Adobe Reader remains one of the most widely deployed PDF viewers in enterprise and consumer environments, making it an attractive target for cybercriminals seeking persistent access to systems. The unspecified vectors indicate that multiple attack surfaces within the PDF processing functionality could be exploited, including various PDF objects, streams, or parsing operations that do not properly validate input boundaries.
The technical exploitation of this buffer overflow requires careful crafting of malicious PDF content that triggers memory corruption during document parsing. When Adobe Reader processes the malformed PDF, the insufficient input validation causes data to overflow into adjacent memory regions, potentially overwriting critical program pointers, return addresses, or other control data structures. This memory corruption can be manipulated to redirect program execution flow to malicious code injected by the attacker. The vulnerability demonstrates characteristics consistent with stack-based buffer overflow exploitation patterns, where the attacker must carefully control the overflow size and content to achieve reliable code execution. The attack typically involves constructing a PDF document containing specially crafted data structures that, when parsed by the vulnerable software, cause the buffer overflow to occur at predictable memory locations, enabling the execution of arbitrary code within the context of the running Adobe Reader process. This exploitation technique aligns with the attack patterns documented in the ATT&CK framework under the T1059.007 sub-technique for command and scripting interpreter, specifically targeting the execution of malicious code through application vulnerabilities.
The operational impact of CVE-2012-2050 extends beyond individual user compromise to potentially affect entire enterprise networks, particularly in environments where Adobe Reader remains the primary PDF viewing solution. Organizations running older versions of Adobe Acrobat and Reader face significant risk of targeted attacks, as the vulnerability provides attackers with a straightforward path to gain unauthorized access to sensitive systems. The vulnerability's persistence across multiple operating systems increases its attack surface, requiring organizations to implement comprehensive patch management strategies across their IT infrastructure. Security incidents resulting from this vulnerability often lead to data breaches, lateral movement within networks, and potential establishment of persistent backdoors. The exploitability of this vulnerability is further enhanced by the widespread use of PDF documents in business communications, making it relatively easy for attackers to deliver malicious payloads through phishing campaigns or compromised websites. Organizations that fail to patch this vulnerability in a timely manner face increased risk of advanced persistent threats and zero-day exploitation attempts, as this vulnerability represents a well-known and documented weakness that attackers can readily exploit.
Organizations should implement immediate patch management procedures to address CVE-2012-2050, prioritizing the deployment of Adobe Reader and Acrobat updates 9.5.2 and 10.1.4 respectively. The mitigation strategy should include comprehensive vulnerability scanning to identify systems running affected versions, followed by systematic patch deployment across all endpoints. Additional defensive measures include implementing PDF content filtering, restricting Adobe Reader functionality through security policies, and deploying network-based intrusion detection systems to monitor for suspicious PDF-related traffic. Security teams should also consider implementing application whitelisting policies that restrict execution of untrusted PDF files, particularly in high-security environments. Regular security assessments should be conducted to ensure that all Adobe Reader installations are properly updated and that appropriate security configurations are maintained. The vulnerability underscores the importance of maintaining current software versions and implementing robust patch management processes, as outdated software represents one of the most common attack vectors in enterprise security incidents. Organizations should also consider implementing sandboxing technologies for PDF processing and establishing incident response procedures specifically designed to handle vulnerabilities of this nature. The security community has documented numerous real-world exploitation attempts of similar buffer overflow vulnerabilities, emphasizing the critical need for timely remediation of this CVE-2012-2050 vulnerability across all affected systems.