Adobe has re-released a security advisory with updated information to address the Adobe Download Manager remote arbitrary code execution vulnerability.
Adobe Download Manager contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code with the privileges of the user.
The vulnerability is due to a logic error in the affected application. An unauthenticated, remote attacker could exploit this vulnerability by creating a malicious web page and luring a targeted user into visiting it. This could cause the affected application to download arbitrary files and execute the files without the user's permission. An exploit could allow an attacker to execute arbitrary code with the privileges of the user.
Adobe has confirmed this vulnerability and released updated software.
Adobe Download Manager versions prior to 184.108.40.206 are vulnerable on the Windows platform.
Adobe Download Manager is used to automatically update Adobe products.
In order to exploit this vulnerability, an attacker will need to lure a targeted user into visiting a malicious website. This will typically require the use of social engineering tactics. The attacker may send a link to the site via e-mail, instant messaging, or through other forms of communication.
According to Adobe, the Download Manager is designed for single use only and should automatically be removed from a system after the next reboot. Users are at risk only during the time in which the download manager remains on a system.
Adobe has re-released a security advisory at the following link: APSB10-08
An unauthenticated, remote attacker could exploit this vulnerability to cause the affected application to download and execute an arbitrary file.? An exploit could allow the attacker to execute arbitrary code with the privileges of the user.? If the user has administrative privileges, an exploit could result in a full system compromise.
The vulnerability exists due to a logic error in the code that validates the domain from which a file is being downloaded. The affected application assumes that the domain is always a subdomain; however, this assumption can cause an invalid domain to appear as valid when comparing the valid domain with the requested domain. An unauthenticated, remote attacker can exploit this vulnerability by creating a malicious web page designed to bypass the domain check. By luring a targeted user into visiting this web page, the attacker can cause an arbitrary file to be downloaded to the user's machine and then executed, resulting in arbitrary code execution with the privileges of the user.
Administrators are advised to follow the vendor-supplied instructions to ensure that a vulnerable version of the affected product does not exist on their systems.
Users are advised not to open e-mail messages from suspicious or unrecognized sources.? If users cannot verify that links or attachments included in e-mail messages are safe, they are advised not to open them.
Users should verify that unsolicited links are safe to follow.
Adobe has released version 220.127.116.11 of Adobe Download Manager that corrects this vulnerability. Administrators are advised to remove older versions from vulnerable systems by following the instructions provided in the vendor advisory.
Version 3, February 24, 2010, 5:52 PM: Additional technical information is available to describe the Adobe Download Manager remote arbitrary code execution vulnerability.
Version 2, February 23, 2010, 5:47 PM: Adobe has released a security advisory and updated software to address the Adobe Download Manager remote arbitrary code execution vulnerability.
Version 1, February 19, 2010, 5:59 PM: Adobe Download Manager contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code. Updates are not available.
The security vulnerability applies to the following combinations of products.
Adobe Download Manager
Alerts and bulletins on the Cisco Security Intelligence Operations Portal are highlighted by analysts in the
Cisco Threat Operations Center and represent a subset of the comprehensive content that is available through Cisco Security IntelliShield Alert Manager Service.
This customizable threat and vulnerability alert service provides security staff with access to timely, accurate, and credible information about threats and vulnerabilities that may affect their environment.
The urgency and severity ratings of this alert are not tailored to individual users; users may value alerts differently based upon their network configurations and circumstances. THE ALERT, AND INFORMATION CONTAINED THEREIN, ARE PROVIDED ON AN "AS IS" BASIS AND DO NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE ALERT, AND INFORMATION CONTAINED THEREIN, OR MATERIALS LINKED FROM THE ALERT, IS AT YOUR OWN RISK. INFORMATION IN THIS ALERT AND ANY RELATED COMMUNICATIONS IS BASED ON OUR KNOWLEDGE AT THE TIME OF PUBLICATION AND IS SUBJECT TO CHANGE WITHOUT NOTICE. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE ALERTS AT ANY TIME.