External risk intelligence

Adobe Reader and Acrobat Code Execution Vulnerability.

CVE advisoryKnown Exploit

CVE-2013-0640

A vulnerability in Adobe Reader and Acrobat may allow attackers to execute arbitrary code or cause a denial of service by corrupting memory. This could impact systems and data confidentiality, integrity, and availability. The realistic business risk is significant due to the potential for exploitation via crafted PDF d

1Halo Surface Signal

Out-of-bounds Write

Adobe Acrobat

9.0 to before 9.5.410.0 to before 10.1.611.0 to before 11.0.0211.412.110116.05.96.4

External exposure likelihood

Halo Surface Signal score for CVE-2013-0640

This vulnerability affects Adobe Reader and Acrobat, which are client-side desktop applications. Exploitation requires a user to open a specifically crafted document, rather than being an internet-facing network service or appliance.

Horizon Alert

Summary of the vulnerability and why it matters

When organizations use Adobe Reader and Acrobat, a flaw in the software can be exploited. A specially crafted document could allow an attacker to execute arbitrary code or cause a denial of service by corrupting memory. This could affect the confidentiality, integrity, and availability of data and systems.

  • Vulnerable Adobe Reader and Acrobat software
  • Memory corruption flaw
  • Arbitrary code execution or denial of service

Attack Path

How an attacker could exploit the issue

Attackers can exploit a vulnerability in Adobe Reader and Acrobat by tricking users into opening a malicious PDF document. This action allows the attacker to execute arbitrary code on the user's system. The successful execution of this code can lead to the compromise of the affected system and potentially sensitive data.

  • Malicious PDF exposed to user.
  • Attacker gains code execution.
  • Control or impact occurs.

Live Threat

Current exploitation, exposure, and threat context

This vulnerability enables remote attackers to execute arbitrary code or cause a denial of service by tricking users into opening a specially crafted PDF document. The impact is memory corruption, potentially leading to unauthorized code execution and system compromise. Organizations using affected versions of Adobe Reader and Acrobat face a significant risk due to the potential for widespread exploitation.

  • Attackers with moderate skill.
  • Requires user interaction via a malicious PDF.
  • High business risk and urgency.

Priority actions

Operational Fix

Recommended remediation, mitigation, and detection steps

This vulnerability in Adobe Reader and Acrobat allows for remote code execution or denial of service when a user opens a crafted PDF document. The exploitation of this vulnerability has been observed in the wild, posing a significant risk to organizations. Action is required to protect systems and data from potential compromise.

  • Identify all instances of affected Adobe Reader and Acrobat.
  • Reduce exposure by disabling Reader/Acrobat or blocking PDF imports.
  • Apply vendor updates, verify the fix, and monitor systems.

Frequently asked questions

What types of Adobe software are affected by the CVE-2013-0640 vulnerability, and what versions are impacted?

The vulnerability CVE-2013-0640 affects Adobe Reader and Acrobat. Specifically, versions 9.x before 9.5.4, 10.x before 10.1.6, and 11.x before 11.0.02 are vulnerable. This memory corruption flaw can lead to arbitrary code execution or denial of service.

What is the primary weakness exploited by CVE-2013-0640, and what is the resulting impact on affected systems?

The primary weakness exploited by CVE-2013-0640 is a memory corruption vulnerability, specifically categorized as CWE-787. This weakness allows remote attackers to execute arbitrary code or cause a denial of service by corrupting memory when a user opens a specially crafted PDF document.

How can an attacker exploit CVE-2013-0640, and what is the scope of impact on a system?

Attackers exploit CVE-2013-0640 by presenting a user with a crafted PDF document. When the user opens this document, the vulnerability is triggered, leading to memory corruption. This can result in arbitrary code execution or a denial of service, impacting the confidentiality, integrity, and availability of the affected system.

Why is CVE-2013-0640 considered a significant threat, especially in the context of the Halo Surface Signal?

CVE-2013-0640 is a significant threat because it was exploited in the wild in February 2013, indicating active exploitation. Although Halo classifies it as an 'internal' vulnerability due to its local attack vector, the potential for arbitrary code execution and denial of service poses a high risk. The Halo Surface Signal indicates this is 'Very unlikely' to be an internet-facing exploit due to its client-side nature.

What practical steps can organizations take to remediate and mitigate the risks associated with CVE-2013-0640?

To mitigate CVE-2013-0640, organizations should first identify all instances of vulnerable Adobe Reader and Acrobat versions. Reducing exposure by disabling Reader/Acrobat or blocking PDF imports can be a temporary measure. The primary operational fix is to apply vendor updates promptly, verify that the patches are successfully installed, and continuously monitor systems for any signs of compromise.

References