Microsoft Windows NtUserGetMessage Stack Information Disclosure Vulnerability
Vulnerability Details
This vulnerability allows local attackers to leak sensitive information on vulnerable installations of Microsoft Windows. 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 handling of the NtUserGetMessage function. The issue lies in the failure to sanitize a buffer before returning its contents resulting in the leak of a kernel address. An attacker can leverage this together with another vulnerability to achieve code execution at SYSTEM.
Additional Details
Microsoft has issued an update to correct this vulnerability. More details can be found at:
https://technet.microsoft.com/library/security/MS15-051
Disclosure Timeline
- 2015-03-05 - Vulnerability reported to vendor
- 2015-05-12 - Coordinated public release of advisory
Credit
WanderingGlitch - HP Zero Day Initiative
