K7 Ultimate Security 16.0.0117 Backup K7BKCExt.dll link following

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 (≈)
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CTI Interest Score
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6.5$0-$5k0.00

Summaryinfo

A vulnerability was found in K7 Ultimate Security 16.0.0117 and classified as critical. This issue affects some unknown processing in the library K7BKCExt.dll of the component Backup Module. Executing a manipulation can lead to link following. The identification of this vulnerability is CVE-2019-16896. The attack can only be executed locally. There is no exploit available.

Detailsinfo

A vulnerability classified as critical was found in K7 Ultimate Security 16.0.0117. This vulnerability affects an unknown code in the library K7BKCExt.dll of the component Backup Module. The manipulation with an unknown input leads to a link following vulnerability. The CWE definition for the vulnerability is CWE-59. The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

In K7 Ultimate Security 16.0.0117, the module K7BKCExt.dll (aka the backup module) improperly validates the administrative privileges of the user, allowing an arbitrary file write via a symbolic link attack with file restoration functionality.

The weakness was shared 12/27/2019. This vulnerability was named CVE-2019-16896 since 09/25/2019. The exploitation appears to be easy. The attack needs to be approached locally. No form of authentication is required for a successful exploitation. There are known technical details, 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.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 5.3
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔍

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Link following
CWE: CWE-59
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

09/25/2019 🔍
12/27/2019 +93 days 🔍
12/28/2019 +1 days 🔍
03/18/2024 +1542 days 🔍

Sourcesinfo

Advisory: github.com
Status: Not defined

CVE: CVE-2019-16896 (🔍)
GCVE (CVE): GCVE-0-2019-16896
GCVE (VulDB): GCVE-100-147844

Entryinfo

Created: 12/28/2019 11:53
Updated: 03/18/2024 08:47
Changes: 12/28/2019 11:53 (36), 12/28/2019 11:58 (17), 03/18/2024 08:47 (17)
Complete: 🔍
Cache ID: 216::103

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