VDB-186251 · CVE-2021-42074 · GCVE-0-2021-42074

Barrier up to 2.3.3 TCP Connection denial of service

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.
4.1	$0-$5k	0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Barrier up to 2.3.3. Affected is an unknown function of the component TCP Connection Handler. The manipulation leads to denial of service. This vulnerability is documented as CVE-2021-42074. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Barrier up to 2.3.3 and classified as problematic. This issue affects some unknown functionality of the component TCP Connection Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was released 11/08/2021. It is possible to read the advisory at openwall.com. The identification of this vulnerability is CVE-2021-42074 since 10/07/2021. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 2.3.4 eliminates this vulnerability. The upgrade is hosted for download at github.com.

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Productinfo

Name

Barrier

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
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: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: Barrier 2.3.4

Timelineinfo

10/07/2021 🔍
11/08/2021 +32 days 🔍
11/08/2021 +0 days 🔍
11/10/2021 +2 days 🔍

Sourcesinfo

Advisory: openwall.com
Status: Confirmed

CVE: CVE-2021-42074 (🔍)
GCVE (CVE): GCVE-0-2021-42074
GCVE (VulDB): GCVE-100-186251

Entryinfo

Created: 11/08/2021 08:24
Updated: 11/10/2021 18:58
Changes: 11/08/2021 08:24 (39), 11/10/2021 18:58 (1)
Complete: 🔍
Cache ID: 216::103