CVE-2013-2550 in Acrobat Reader
Summary
by MITRE
Unspecified vulnerability in Adobe Reader 11.0.02 allows attackers to bypass the sandbox protection mechanism via unknown vectors, as demonstrated by George Hotz during a Pwn2Own competition at CanSecWest 2013.
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Analysis
by VulDB Data Team • 05/06/2021
The vulnerability identified as CVE-2013-2550 represents a critical sandbox escape flaw in Adobe Reader version 11.0.02 that fundamentally undermines the security architecture designed to protect users from malicious content. This vulnerability specifically targets the sandbox protection mechanism that Adobe implemented to isolate potentially dangerous PDF content from the underlying operating system. The sandbox serves as a critical security boundary that prevents malicious code from accessing system resources, executing arbitrary commands, or compromising user data. During the Pwn2Own competition at CanSecWest 2013, security researcher George Hotz successfully demonstrated this vulnerability, proving that attackers could bypass these protective measures through previously unknown attack vectors. The exploitability of this vulnerability makes it particularly dangerous as it allows adversaries to circumvent the very security controls that users rely upon when opening PDF documents.
The technical nature of this sandbox escape vulnerability falls under the category of privilege escalation and code execution flaws that directly compromise the integrity of Adobe Reader's security model. This type of vulnerability typically involves either a memory corruption issue, a logic flaw in the sandbox implementation, or an insufficient validation mechanism that allows malicious code to transition from the restricted sandbox environment to the full system privileges. The attack vectors used in this exploit likely involved manipulating PDF parsing functions or leveraging specific object interactions within the document that could trigger unexpected behavior in the sandboxed execution environment. According to CWE classification, this vulnerability aligns with CWE-248, which deals with Uncaught Exception, and potentially CWE-94, which covers Improper Control of Generation of Code, as the sandbox mechanism failed to properly contain the malicious execution flow. The vulnerability demonstrates how complex security boundaries can be circumvented through sophisticated exploitation techniques that target implementation gaps in security models.
The operational impact of CVE-2013-2550 extends far beyond the immediate technical flaw, as it represents a significant threat to enterprise security environments where Adobe Reader remains widely deployed for document viewing. Organizations that rely on PDF documents for business operations face substantial risk when this vulnerability exists in their systems, as successful exploitation could lead to complete system compromise, data exfiltration, and persistent backdoor access. The vulnerability's demonstration at a high-profile security conference like Pwn2Own highlights its real-world exploitability and the potential for widespread adoption by threat actors in the underground cybercriminal community. Security professionals must consider that this vulnerability could be weaponized in targeted attacks against specific organizations or used in mass phishing campaigns where malicious PDF attachments are distributed to unsuspecting users. The impact is particularly severe given that Adobe Reader is often the default PDF viewer on Windows systems, making it a prime target for attackers seeking to establish initial access or escalate privileges within compromised networks.
Mitigation strategies for CVE-2013-2550 require immediate action from organizations to address the vulnerability before it can be exploited by malicious actors. The most effective immediate response involves applying the official Adobe security patches released to address this specific flaw, as these updates contain fixes for the sandbox bypass mechanism. Organizations should also implement additional defensive measures including disabling the PDF plugin in web browsers, implementing strict content filtering for PDF documents, and deploying sandboxing solutions that provide additional layers of protection beyond Adobe's built-in mechanisms. Network administrators should consider implementing email filtering rules that block suspicious PDF attachments and monitor for indicators of compromise related to this vulnerability. From an ATT&CK framework perspective, this vulnerability maps to techniques such as T1059 for command and control communication and T1068 for bypassing security controls, making it particularly relevant for organizations implementing threat hunting and incident response procedures. Regular security assessments should include verification that all Adobe Reader installations are updated and that the sandbox protection mechanisms are functioning as intended.