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Last updated: 10/22/2014 12:52:30 AM

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National Cyber Awareness System

Vulnerability Summary for CVE-2007-5086

Original release date: 09/26/2007
Last revised: 03/07/2011
Source: US-CERT/NIST

Overview

Kaspersky Anti-Virus (KAV) and Internet Security 7.0 build 125 do not properly validate certain parameters to System Service Descriptor Table (SSDT) and Shadow SSDT function handlers, which allows local users to cause a denial of service (crash) via the (1) NtUserSendInput, (2) LoadLibraryA, (3) NtOpenProcess, (4) NtOpenThread, (5) NtTerminateProcess, (6) NtUserFindWindowEx, and (7) NtUserBuildHwndList kernel SSDT hooks in kylif.sys; the (8) NtDuplicateObject (DuplicateHandle) kernel SSDT hook; and possibly other kernel SSDT hooks. NOTE: the NtCreateSection vector is covered by CVE-2007-5043.1. NOTE: the vendor disputes that the DuplicateHandle vector is a vulnerability in their code, stating that "it is not an error in our code, but an obscure method for manipulating standard Windows routines to circumvent our self-defense mechanisms."

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 2.1 (LOW) (AV:L/AC:L/Au:N/C:N/I:N/A:P) (legend)
Impact Subscore: 2.9
Exploitability Subscore: 3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: SECUNIA
Name: 26887
Type: Advisory
External Source: CONFIRM
Name: http://www.kaspersky.com/technews?id=203038706
External Source: VUPEN
Name: ADV-2007-3259
External Source: MISC
Name: http://www.rootkit.com/newsread.php?newsid=778
External Source: OSVDB
Name: 37990

Technical Details

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