VDB-187712 · CVE-2021-42987 · GCVE-0-2021-42987

Eltima USB Network Gate prior 9.2.2420 IOCTL integer overflow

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.
8.1	$0-$5k	0.00

Summaryinfo

A vulnerability classified as critical was found in Eltima USB Network Gate. This affects an unknown function of the component IOCTL Handler. Such manipulation leads to integer overflow. This vulnerability is uniquely identified as CVE-2021-42987. Local access is required to approach this attack. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Eltima USB Network Gate. It has been rated as critical. Affected by this issue is an unknown function of the component IOCTL Handler. The manipulation with an unknown input leads to a integer overflow vulnerability. Using CWE to declare the problem leads to CWE-190. The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control. Impacted is confidentiality, integrity, and availability.

The weakness was disclosed 12/08/2021. The advisory is shared for download at sentinelone.com. This vulnerability is handled as CVE-2021-42987 since 10/25/2021. There are neither technical details nor an exploit publicly available.

Upgrading to version 9.2.2420 eliminates this vulnerability.

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

Productinfo

Vendor

Eltima

Name

USB Network Gate

CPE 2.3info

🔍

CPE 2.2info

🔍

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.3
VulDB Meta Temp Score: 8.1

VulDB Base Score: 7.8
VulDB Temp Score: 7.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.8
NVD Vector: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Integer overflow
CWE: CWE-190 / CWE-189
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: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: USB Network Gate 9.2.2420

Timelineinfo

10/25/2021 🔍
12/08/2021 +44 days 🔍
12/08/2021 +0 days 🔍
12/11/2021 +3 days 🔍

Sourcesinfo

Advisory: sentinelone.com
Status: Confirmed

CVE: CVE-2021-42987 (🔍)
GCVE (CVE): GCVE-0-2021-42987
GCVE (VulDB): GCVE-100-187712

Entryinfo

Created: 12/08/2021 08:08
Updated: 12/11/2021 01:15
Changes: 12/08/2021 08:08 (38), 12/11/2021 01:02 (1), 12/11/2021 01:15 (18)
Complete: 🔍
Cache ID: 216::103