VDB-185902 · CVE-2021-36924 · GCVE-0-2021-36924

Realtek RtsUpx USB Utility Driver up to 1.14.0.0 RtsUpx.sys access control

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.
5.3	$0-$5k	0.00

Summaryinfo

A vulnerability labeled as critical has been found in Realtek RtsUpx USB Utility Driver up to 1.14.0.0. This affects an unknown part in the library RtsUpx.sys. Executing a manipulation can lead to access control. This vulnerability is tracked as CVE-2021-36924. The attack is restricted to local execution. No exploit exists.

Detailsinfo

A vulnerability was found in Realtek RtsUpx USB Utility Driver up to 1.14.0.0 (Hardware Driver Software). It has been declared as critical. This vulnerability affects an unknown part in the library RtsUpx.sys. The manipulation with an unknown input leads to a access control vulnerability. The CWE definition for the vulnerability is CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 11/02/2021. The advisory is available at realtek.com. This vulnerability was named CVE-2021-36924 since 07/19/2021. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1068 by the MITRE ATT&CK project.

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

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Productinfo

Type

Hardware Driver Software

Vendor

Realtek

Name

RtsUpx USB Utility Driver

Version

1.14.0

License

commercial

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.3

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

CVSSv2info

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: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: Partially
Local: Yes
Remote: No

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

07/19/2021 🔍
11/02/2021 +106 days 🔍
11/02/2021 +0 days 🔍
11/05/2021 +3 days 🔍

Sourcesinfo

Advisory: realtek.com
Status: Confirmed

CVE: CVE-2021-36924 (🔍)
GCVE (CVE): GCVE-0-2021-36924
GCVE (VulDB): GCVE-100-185902

Entryinfo

Created: 11/02/2021 19:38
Updated: 11/05/2021 03:48
Changes: 11/02/2021 19:38 (38), 11/05/2021 03:48 (1)
Complete: 🔍
Cache ID: 216::103