CVE-2013-0624 in Acrobat Reader
Summary
by MITRE
Adobe Reader and Acrobat 9.x before 9.5.3, 10.x before 10.1.5, and 11.x before 11.0.1 allow attackers to bypass intended access restrictions via unspecified vectors, a different vulnerability than CVE-2013-0622.
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Analysis
by VulDB Data Team • 12/28/2024
Adobe Reader and Acrobat versions 9.x before 9.5.3, 10.x before 10.1.5, and 11.x before 11.0.1 contain a security vulnerability that enables attackers to circumvent intended access controls through unspecified methods. This flaw represents a distinct issue from CVE-2013-0622, indicating separate attack vectors and exploitation techniques. The vulnerability resides within the document processing mechanisms of these Adobe applications, specifically affecting how they handle access restrictions and permissions for PDF documents. The unspecified nature of the attack vectors suggests multiple potential pathways through which an attacker could exploit the weakness, potentially involving manipulation of document structures, permission flags, or processing sequences that should normally prevent unauthorized access to restricted content. This vulnerability operates at the application level where PDF rendering and access control enforcement occurs, creating a potential entry point for attackers to bypass security measures designed to protect sensitive information within PDF files. The impact extends beyond simple document access as it represents a fundamental failure in the access control implementation that could allow unauthorized viewing, editing, or execution of restricted content. This weakness falls under the broader category of access control bypass vulnerabilities and aligns with common attack patterns documented in the attack tree methodology, where attackers seek to exploit application-level flaws to gain elevated privileges or access to restricted resources. The vulnerability demonstrates a failure in input validation and access control enforcement that could be leveraged in various attack scenarios, including targeted attacks against sensitive documents or mass exploitation campaigns targeting vulnerable installations. Security researchers have identified this as a critical issue requiring immediate remediation due to its potential for enabling unauthorized access to protected information and the widespread use of these Adobe applications across enterprise and individual environments. The vulnerability's classification aligns with CWE-284, which describes improper access control scenarios, and represents a significant risk when considering the ATT&CK framework's access control bypass techniques that attackers commonly employ to escalate privileges and access restricted resources. Organizations using these vulnerable versions of Adobe Reader and Acrobat should prioritize immediate patching to address this access control weakness that could potentially expose sensitive data and compromise document security.
The technical implementation of this vulnerability suggests flaws in the permission handling system within Adobe's PDF processing engine. Attackers could potentially exploit this weakness through crafted PDF documents that manipulate access control parameters during document parsing and rendering. The unspecified vectors indicate that multiple attack methods may be viable, including manipulation of document metadata, embedded scripts, or structural elements that control access permissions. This vulnerability demonstrates a critical gap in Adobe's access control enforcement mechanisms, where the application fails to properly validate access restrictions during document processing. The flaw likely exists in how the software interprets and enforces document-level access controls, potentially allowing attackers to bypass checks that should prevent access to restricted content. Security researchers have noted that the vulnerability's exploitation may involve complex interactions between document parsing and access control validation, making it particularly challenging to detect and prevent through traditional security measures. The impact of this vulnerability extends to organizations that rely heavily on PDF document security, as attackers could potentially access sensitive information that should be protected by access restrictions. This weakness represents a significant concern in enterprise environments where PDF documents often contain confidential information, proprietary data, or sensitive business documents that require strict access controls to maintain security. The vulnerability's potential for widespread exploitation makes it a high-priority target for attackers seeking to access restricted content across various industries and organizations that use Adobe Reader and Acrobat for document management and distribution.
Mitigation strategies for this vulnerability focus primarily on immediate patching and remediation efforts to address the access control bypass weakness. Organizations should prioritize updating to Adobe Reader and Acrobat versions 9.5.3, 10.1.5, and 11.0.1 respectively, which contain fixes for this specific vulnerability. Security administrators should implement comprehensive patch management procedures to ensure all vulnerable systems are updated promptly, as the vulnerability's exploitation potential makes it critical to address immediately. Additional defensive measures may include implementing network-based security controls such as web application firewalls that can detect and block suspicious PDF document processing activities, though these should be considered supplementary to the primary patching requirement. Organizations should also review their document access control policies and implement additional layers of protection, particularly for sensitive documents that are distributed through Adobe Reader or Acrobat. The vulnerability's nature suggests that attackers may attempt to exploit it through social engineering campaigns targeting users with vulnerable software installations, making user education and awareness programs essential components of the overall security strategy. Security monitoring should include detection of unusual PDF processing activities that might indicate exploitation attempts, and organizations should consider implementing automated vulnerability scanning to identify systems running vulnerable versions of Adobe software. The remediation process should also include reviewing and updating access control configurations for PDF documents, ensuring that proper permission settings are enforced and that unnecessary access privileges are removed. Given the vulnerability's classification and potential impact, organizations should conduct thorough security assessments to identify all systems that may be vulnerable and establish a timeline for complete remediation across their entire infrastructure. The ATT&CK framework's access control bypass techniques should be considered when developing incident response procedures, as this vulnerability could be exploited using methods that align with established attack patterns for privilege escalation and information access.