Adobe Acrobat and Reader are prone to a remote code-execution vulnerability because the software fails to sufficiently sanitize user-supplied input. An attacker can exploit this issue to execute arbitrary code with the privileges of the user running the application or crash the application, denying service to legitimate users. The issue affects the following: Reader and Acrobat 7.1 and prior Reader and Acrobat 8.1.2 and prior Reader and Acrobat 9 UPDATE (March 24, 2009): This BID was previously titled ‘Adobe Acrobat and Reader Unspecified JavaScript Method Remote Code Execution Vulnerability’, but has been updated to better document the issue.
Run all software as a nonprivileged user with minimal access rights.
To reduce the impact of latent vulnerabilities, run the application with the minimal amount of privileges required for functionality.
Deploy network intrusion detection systems to monitor network traffic for malicious activity.
Deploy NIDS to monitor network traffic for signs of anomalous or suspicious activity including unexplained incoming and outgoing traffic. This may indicate exploit attempts or activity that results from successful exploits.
Do not accept or execute files from untrusted or unknown sources.
To reduce the likelihood of successful exploits, never handle files that originate from unfamiliar or untrusted sources.
Do not follow links provided by unknown or untrusted sources.
To reduce the likelihood of attacks, never visit sites of questionable integrity or follow links provided by unfamiliar or untrusted sources.
Implement multiple redundant layers of security.
Various memory-protection schemes (such as nonexecutable and randomly mapped memory segments) may hinder an attacker’s ability to exploit this vulnerability to execute arbitrary code.
Updates are available. Please see the references for details.