CVE-2016-4213 in Acrobat Reader
Summary
by MITRE
Adobe Reader and Acrobat before 11.0.17, Acrobat and Acrobat Reader DC Classic before 15.006.30198, and Acrobat and Acrobat Reader DC Continuous before 15.017.20050 on Windows and OS X allow attackers to execute arbitrary code or cause a denial of service (memory corruption) via unspecified vectors, a different vulnerability than CVE-2016-4191, CVE-2016-4192, CVE-2016-4193, CVE-2016-4194, CVE-2016-4195, CVE-2016-4196, CVE-2016-4197, CVE-2016-4198, CVE-2016-4199, CVE-2016-4200, CVE-2016-4201, CVE-2016-4202, CVE-2016-4203, CVE-2016-4204, CVE-2016-4205, CVE-2016-4206, CVE-2016-4207, CVE-2016-4208, CVE-2016-4211, CVE-2016-4212, CVE-2016-4214, CVE-2016-4250, CVE-2016-4251, CVE-2016-4252, and CVE-2016-4254.
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Analysis
by VulDB Data Team • 10/02/2024
Adobe Reader and Acrobat products have long been prime targets for cyber attacks due to their widespread use and the complex nature of PDF processing. This vulnerability affects multiple versions of Adobe's document viewers and editors across both Windows and macOS platforms, creating a substantial attack surface that has been exploited by threat actors. The flaw resides in the memory corruption mechanisms that occur when processing specially crafted PDF files, allowing attackers to potentially gain remote code execution capabilities or cause system crashes through unspecified vectors.
The technical nature of this vulnerability stems from improper handling of memory operations within the PDF parsing engine of Adobe's software. When a malicious PDF file is opened, the application's memory management routines fail to properly validate or sanitize input data, leading to memory corruption that can be leveraged for arbitrary code execution. This type of vulnerability falls under the common weakness enumeration CWE-125, which describes out-of-bounds read conditions that can result in memory corruption and potential code execution. The vulnerability is particularly dangerous because it operates at the memory level, making it difficult to detect through traditional signature-based security measures and allowing attackers to bypass many standard security controls.
From an operational standpoint, this vulnerability presents significant risks to organizations that rely heavily on PDF document sharing and processing. The attack vectors typically involve social engineering campaigns where users are tricked into opening malicious PDF attachments delivered through email or other communication channels. The impact extends beyond individual system compromise to potentially enable broader network infiltration, as attackers can leverage the remote code execution capability to establish persistent access or deploy additional malware. This aligns with tactics described in the attack pattern taxonomy where adversaries use software vulnerabilities to establish initial access and maintain presence within target environments.
Organizations should implement immediate mitigations including prompt application of Adobe's security patches and updates to the affected versions. System administrators should consider deploying network-based intrusion detection systems that can identify suspicious PDF file patterns and implement email filtering solutions that block potentially malicious attachments. The vulnerability also underscores the importance of user education and awareness training to prevent successful social engineering attacks that often accompany such exploits. Additionally, organizations should consider implementing sandboxing technologies that isolate PDF processing in restricted environments to contain potential exploitation attempts. The ATT&CK framework categorizes this type of vulnerability exploitation under initial access and execution phases, emphasizing the need for layered security approaches that address both technical and human factors in defending against such attacks.