ecnepsnai web Web Socket AuthenticateMethod resource consumption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.6$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, has been found in ecnepsnai web. Affected by this vulnerability is the function AuthenticateMethod of the component Web Socket Handler. This manipulation causes resource consumption. This vulnerability is handled as CVE-2021-4236. There is not any exploit available. To fix this issue, it is recommended to deploy a patch.

Detailsinfo

A vulnerability has been found in ecnepsnai web (affected version unknown) and classified as problematic. Affected by this vulnerability is the function AuthenticateMethod of the component Web Socket Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. The CWE definition for the vulnerability is CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. As an impact it is known to affect availability. The summary by CVE is:

Web Sockets do not execute any AuthenticateMethod methods which may be set, leading to a nil pointer dereference if the returned UserData pointer is assumed to be non-nil, or authentication bypass. This issue only affects WebSockets with an AuthenticateMethod hook. Request handlers that do not explicitly use WebSockets are not vulnerable.

The weakness was released 12/28/2022 as 5a78f8d5c41ce60dcf9f61aaf47a7a8dc3e0002f. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2021-4236 since 07/29/2022. Technical details of the vulnerability are known, but there is no available exploit.

Applying the patch 5a78f8d5c41ce60dcf9f61aaf47a7a8dc3e0002f is able to eliminate this problem. The bugfix is ready for download at github.com.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

Name

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.6
VulDB Meta Temp Score: 6.6

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 9.8
NVD Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

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: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 5a78f8d5c41ce60dcf9f61aaf47a7a8dc3e0002f

Timelineinfo

07/29/2022 🔍
12/28/2022 +152 days 🔍
12/28/2022 +0 days 🔍
04/11/2025 +835 days 🔍

Sourcesinfo

Product: github.com

Advisory: 5a78f8d5c41ce60dcf9f61aaf47a7a8dc3e0002f
Status: Confirmed

CVE: CVE-2021-4236 (🔍)
GCVE (CVE): GCVE-0-2021-4236
GCVE (VulDB): GCVE-100-216931

Entryinfo

Created: 12/28/2022 09:22
Updated: 04/11/2025 19:42
Changes: 12/28/2022 09:22 (42), 01/25/2023 12:58 (11), 04/11/2025 19:42 (16)
Complete: 🔍
Cache ID: 216::103

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