VDB-3328 · CVE-2007-5086 · SA26887

Kaspersky Anti-Virus klif.sys input validation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.2$5k-$25k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in Kaspersky Anti-Virus. The affected element is an unknown function of the file klif.sys. Executing a manipulation can lead to input validation. This vulnerability appears as CVE-2007-5086. There is no available exploit. You should disable the affected component.

Detailsinfo

A vulnerability was found in Kaspersky Anti-Virus (Anti-Malware Software) (the affected version unknown). It has been declared as critical. This vulnerability affects an unknown part of the file klif.sys. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect availability. CVE summarizes:

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."

The weakness was presented 09/24/2007 by EP_X0FF (Website). The advisory is shared for download at kaspersky.com. This vulnerability was named CVE-2007-5086 since 09/25/2007. The attack needs to be done within the local network. No form of authentication is required for a successful exploitation. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 04/23/2018).

It is declared as proof-of-concept. As 0-day the estimated underground price was around $5k-$25k.

Applying a patch is able to eliminate this problem. The bugfix is ready for download at kaspersky.com.

The vulnerability is also documented in the databases at OSVDB (37990†) and Secunia (SA26887†). See VDB-2320 for similar entry. VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.2

VulDB Base Score: 6.5
VulDB Temp Score: 6.2
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: Partially

Availability: 🔍
Status: Proof-of-Concept

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Disable
Status: 🔍

0-Day Time: 🔍

Patch: kaspersky.com

Timelineinfo

09/24/2007 🔍
09/24/2007 +0 days 🔍
09/24/2007 +0 days 🔍
09/25/2007 +0 days 🔍
09/26/2007 +1 days 🔍
10/01/2007 +5 days 🔍
04/23/2018 +3857 days 🔍

Sourcesinfo

Vendor: kaspersky.com

Advisory: kaspersky.com
Researcher: EP_X0FF
Status: Not defined
Confirmation: 🔍

CVE: CVE-2007-5086 (🔍)
GCVE (CVE): GCVE-0-2007-5086
GCVE (VulDB): GCVE-100-3328
Secunia: 26887 - Kaspersky AntiVirus klif.sys Hooked Functions Denial of Service, Not Critical
OSVDB: 37990 - Kaspersky Multiple Products Multiple SSDT Functions Local Privilege Escalation
Vupen: ADV-2007-3259

See also: 🔍

Entryinfo

Created: 10/01/2007 15:25
Updated: 04/23/2018 09:28
Changes: 10/01/2007 15:25 (60), 04/23/2018 09:28 (7)
Complete: 🔍
Cache ID: 216::103

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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