nProtect AVS 4.0.0.38 Driver TKFsAv.SYS input validation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
7.2$0-$5k0.00

Summaryinfo

A vulnerability identified as critical has been detected in nProtect AVS 4.0.0.38. This issue affects some unknown processing in the library TKFsAv.SYS of the component Driver. This manipulation causes input validation. This vulnerability is registered as CVE-2018-6525. The attack needs to be launched locally. No exploit is available.

Detailsinfo

A vulnerability has been found in nProtect AVS 4.0.0.38 and classified as critical. Affected by this vulnerability is some unknown functionality in the library TKFsAv.SYS of the component Driver. 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 confidentiality, integrity, and availability. The summary by CVE is:

In nProtect AVS V4.0 4.0.0.38, the driver file (TKFsAv.SYS) allows local users to cause a denial of service (BSOD) or possibly have unspecified other impact because of not validating input values from IOCtl 0x220458.

The bug was discovered 02/01/2018. The weakness was published 02/02/2018 (Website). The advisory is shared at inca.co.kr. This vulnerability is known as CVE-2018-6525 since 02/01/2018. An attack has to be approached locally. A single authentication is required for exploitation. Technical details are known, but no exploit is available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Similar entries are available at VDB-112762, VDB-112763 and VDB-112764. If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.2
VulDB Meta Temp Score: 7.2

VulDB Base Score: 6.6
VulDB Temp Score: 6.6
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

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: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

02/01/2018 🔍
02/01/2018 +0 days 🔍
02/01/2018 +0 days 🔍
02/02/2018 +1 days 🔍
02/03/2018 +1 days 🔍
01/01/2020 +697 days 🔍

Sourcesinfo

Advisory: inca.co.kr
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-6525 (🔍)
GCVE (CVE): GCVE-0-2018-6525
GCVE (VulDB): GCVE-100-112765
See also: 🔍

Entryinfo

Created: 02/03/2018 08:57
Updated: 01/01/2020 10:15
Changes: 02/03/2018 08:57 (58), 01/01/2020 10:15 (2)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion

No comments yet. Languages: en.

Please log in to comment.

Do you need the next level of professionalism?

Upgrade your account now!