AOL Products dnUpdater ActiveX Uninitialized Pointer Remote Code Execution VulnerabilityZDI-12-098: June 21st, 2012
TippingPoint™ IPS Customer ProtectionTippingPoint IPS customers are protected against this vulnerability by Digital Vaccine protection filter ID 12280. For further product information on the TippingPoint IPS:
This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of America Online's Toolbar, Desktop, IM, and winamp. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within the dnUpdater ActiveX Control. When initializing the ActiveX control object, dnu.exe assumes the 5th argument being used for the Init() method, to be a legitimate pointer to a function. This vulnerability can be leveraged to execute code under the context of the user.
Vendor ResponseAmerica Online has issued an update to correct this vulnerability. More details can be found at:
2011-10-21 - Vulnerability reported to vendor
2012-06-21 - Coordinated public release of advisory
CreditThis vulnerability was discovered by:
Andrea Micalizzi aka rgod