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Kaspersky AntiVirus klif.sys Hooked Functions Denial of Service
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Secunia Advisory:
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SA25603
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Release Date:
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2007-06-12
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Last Update:
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2007-07-23
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Critical:
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Not critical
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Impact:
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DoS
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Where:
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Local system
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Solution Status:
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Partial Fix
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| Software: | Kaspersky Anti-Virus 6.x
Kaspersky Internet Security 6.x
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Description:
EP_X0FF has reported some vulnerabilities in Kasperky AntiVirus, which can be exploited by malicious, local users to cause a DoS (Denial of Service).
The vulnerabilities are caused due to errors within klif.sys when handling the parameters of hooked functions. These can be exploited to cause a DoS by calling "NtCreateKey()", "NtCreateProcess()", "NtCreateProcessEx()", "NtCreateSection()", "NtCreateSymbolicLinkObject()", "NtCreateThread()", "NtDeleteValueKey()", "NtLoadKey2()", "NtOpenKey()", "NtOpenProcess()", "NtOpenSection()", or "NtQueryValueKey()" with a specially crafted parameter.
The vulnerabilities reportedly affect the following products and versions for Windows NT, Windows 2000, Windows 2003 x86, and Windows XP x86 :
* Kaspersky Internet Security 6.0 / 7.0
* Kaspersky Anti-Virus 6.0 / 7.0
* Kaspersky Anti-Virus for Windows Workstations 6.0
* Kaspersky Anti-Virus 6.0 for Windows Servers
Solution:
Apply updates.
Kaspersky Anti-Virus 6.0 for Windows Workstation (Build 6.0.2.690 MP2 CF1):
http://www.kaspersky.com/productupdates?chapter=146274385
Kaspersky Anti-Virus 6.0 for Windows Server (Build 6.0.2.690 MP2 CF1):
http://www.kaspersky.com/productupdates?chapter=146274391
Grant only trusted users access to affected systems.
Provided and/or discovered by:
EP_X0FF
Independently discovered by Matousec Transparent Security.
Changelog:
2007-06-15: Updated advisory based on additional information from Matousec Transparent Security and by EP_X0FF. Added additional link.
2007-07-23: Updated "Solution" section with updates for Kaspersky Anti-Virus 6.0 for Windows Workstation/Server. Added additional vendor link.
Original Advisory:
Kaspersky:
http://www.kaspersky.com/technews?id=203038695
http://www.kaspersky.com/technews?id=203038702
rootkit.com:
http://www.rootkit.com/newsread.php?newsid=726
Matousec Transparent Security:
http://www.matousec.com/info/advisori...lidation-of-hooked-SSDT-functions.php
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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6 Related Secunia Security Advisories
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1. Kaspersky Products kl1.sys Driver Buffer Overflow Vulnerability
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2. Kaspersky Products Multiple Vulnerabilities
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3. Kaspersky Anti-Virus Engine UPX Processing Denial of Service
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4. Kaspersky Antivirus PE File Handling Denial of Service
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5. Kaspersky Labs Anti-Virus IOCTL Privilege Escalation
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6. Kaspersky Anti-Virus "klif.sys" Denial of Service Vulnerability
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