Kaspersky Anti-Virus multiple klif.sys denial of service

kaspersky-multiple-klif-dos (34875) The risk level is classified as LowLow Risk

Description:

Multiple Kaspersky Anti-Virus products are vulnerable to a denial of service, caused by an error in the klif.sys driver's NtCreateKey, NtCreateProcess, NtCreateProcessEx, NtCreateSection, NtCreateSymbolicLinkObject, NtCreateThread, NtLoadKey2, NtOpenKey, and NtOpenProcess functions. A local attacker could exploit this vulnerability to crash the system.

Platforms Affected:

  • Kaspersky, Kaspersky Internet Security 6.0.2.614
  • Kaspersky, Kaspersky Internet Security 6.0.2.621
  • Kaspersky, Kaspersky Internet Security Suite 6.0

Remedy:

Refer to Kapersky Web site for patch, upgrade or suggested workaround information. See References.

Consequences:

Denial of Service

References:

  • Kapersky Web site, Product Updates at http://www.kaspersky.com/productupdates.
  • Kaspersky Anti-Virus Web site, Kaspersky Lab: Antivirus software at http://www.kaspersky.com/.
  • Kaspersky Web site, Faulty data processing in klif.sys driver at http://www.kaspersky.com/technews?id=203038706.
  • MatouSec Transparent Security Advisory 2007-06-15.01, Kaspersky Multiple insufficient argument validation of hooked SSDT function Vulnerability at http://www.matousec.com/info/advisories/Kaspersky-Multiple-insufficient-argument-validation-of-hooked-SSDT-functions.php.
  • Rootkit Web site, Haxdoors of the Kaspersky Antivirus 6/7 at http://www.rootkit.com/newsread.php?newsid=778.
  • CVE-2007-5086: 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
  • FrSIRT/ADV-2007-3259: Kaspersky Anti-Virus klif.sys Driver Local Denial of Service Vulnerability
  • SA26887: Kaspersky AntiVirus klif.sys Hooked Functions Denial of Service

Reported:

Jun 15, 2007

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