VDB-165629 · CVE-2020-28950 · XFDB 192653

Kaspersky Anti-Ransomware Tool up to 4.0 uncontrolled search path

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.
6.7	$0-$5k	0.00

A vulnerability, which was classified as critical, has been found in Kaspersky Anti-Ransomware Tool up to 4.0. This issue affects some unknown functionality. The manipulation with an unknown input leads to a privilege escalation vulnerability. Using CWE to declare the problem leads to CWE-427. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

The installer of Kaspersky Anti-Ransomware Tool (KART) prior to KART 4.0 Patch C was vulnerable to a DLL hijacking attack that allowed an attacker to elevate privileges during installation process.

The weakness was shared 12/05/2020. The advisory is shared at support.kaspersky.com. The identification of this vulnerability is CVE-2020-28950 since 11/19/2020. The exploitation is known to be easy. The attack may be initiated remotely. A simple authentication is required for exploitation. Neither technical details nor an exploit are publicly available.

Applying the patch 4.0 Patch C is able to eliminate this problem.

The vulnerability is also documented in the vulnerability database at X-Force (192653).

Productinfoedit

Vendor

Kaspersky

Name

Anti-Ransomware Tool

CPE 2.3infoedit

🔒

CPE 2.2infoedit

🔒

CVSSv3infoedit

VulDB Meta Base Score: 7.0
VulDB Meta Temp Score: 6.7

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 7.8
NVD Vector: 🔒

CVSSv2infoedit

AV	AC	Au	C	I	A
🔍	🔍	🔍	🔍	🔍	🔍
🔍	🔍	🔍	🔍	🔍	🔍
🔍	🔍	🔍	🔍	🔍	🔍

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

NVD Base Score: 🔒

Exploitinginfoedit

Class: Privilege escalation
CWE: CWE-427
ATT&CK: Unknown

Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

Price Prediction: 🔍
Current Price Estimation: 🔒

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Threat Intelligenceinfoedit

Threat: 🔍
Adversaries: 🔍
Geopolitics: 🔍
Economy: 🔍
Predictions: 🔍
Remediation: 🔍

Countermeasuresinfoedit

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 4.0 Patch C

Timelineinfoedit

11/19/2020 CVE assigned
12/05/2020 +16 days Advisory disclosed
12/05/2020 +0 days VulDB entry created
12/12/2020 +7 days VulDB last update

Sourcesinfoedit

Vendor: https://www.kaspersky.com/

Advisory: support.kaspersky.com
Status: Confirmed

CVE: CVE-2020-28950 (🔒)
X-Force: 192653

Entryinfoedit