CVE-2021-29469

Potential exponential regex in monitor mode

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Node-redis is a Node.js Redis client. Before version 3.1.1, when a client is in monitoring mode, the regex begin used to detected monitor messages could cause exponential backtracking on some strings. This issue could lead to a denial of service. The issue is patched in version 3.1.1.

Node-redis es un cliente de Node.js Redis. versiones anteriores a 3.1.1, cuando un cliente está en modo de monitoreo, la expresión regular que comienza a usarse para detectar mensajes de monitoreo podría causar un retroceso exponencial en algunas cadenas. Este problema podría conllevar a una denegación de servicio. El problema está parcheado en versión 3.1.1

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

None

Integrity

None

Availability

Partial

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2021-03-30 CVE Reserved
2021-04-23 CVE Published
2024-01-07 EPSS Updated
2024-08-03 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-400: Uncontrolled Resource Consumption

CAPEC

References (4)

URL	Tag	Source
https://github.com/NodeRedis/node-redis/releases/tag/v3.1.1	Third Party Advisory
https://security.netapp.com/advisory/ntap-20210611-0010	Third Party Advisory

URL	Date	SRC

URL	Date	SRC
https://github.com/NodeRedis/node-redis/commit/2d11b6dc9b9774464a91fb4b448bad8bf699629e	2022-08-03
https://github.com/NodeRedis/node-redis/security/advisories/GHSA-35q2-47q7-3pc3	2022-08-03

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Redis.js Search vendor "Redis.js"		Redis Search vendor "Redis.js" for product "Redis"				< 3.1.1 Search vendor "Redis.js" for product "Redis" and version " < 3.1.1"		node.js		Affected