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>> Microsoft Windows "ReadDirectoryChangesW()" Information Disclosure Weakness

Title : Microsoft Windows "ReadDirectoryChangesW()" Information Disclosure Weakness
VUPEN ID : VUPEN/ADV-2007-0701
CVE ID : CVE-2007-0843
Rated as : Low Risk 
Remotely Exploitable : No
Locally Exploitable : Yes
Release Date : 2007-02-23


Technical Description    Receive VUPEN Security alerts in a Text format  Receive VUPEN Security alerts in a PDF format  Receive VUPEN Security alerts in an XML format  Receive VUPEN Security notifications by SMS 

A weakness has been identified in Microsoft Windows, which could be exploited by malicious users to disclose sensitive information. This issue is due to an error within the "ReadDirectoryChangesW()" API that does not properly validate user's permission for child objects when retrieving information regarding objects that they do not have "LIST" permissions for, which could be exploited by local attackers to gather information about protected files (e.g. their names), facilitating further attacks.

Affected Products

Microsoft Windows Vista
Microsoft Windows 2000 Service Pack 4
Microsoft Windows XP Service Pack 2
Microsoft Windows Server 2003 Service Pack 1

Solution

VUPEN Security is not aware of any vendor-supplied patch.

References

http://www.vupen.com/english/advisories/2007/0701
http://securityvulns.com/advisories/readdirectorychanges.asp

Credits

Vulnerability reported by 3APA3A

ChangeLog

2007-02-23 : Initial release

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