// For flags

CVE-2021-41167

Unlimited requests in modern-async

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

modern-async is an open source JavaScript tooling library for asynchronous operations using async/await and promises. In affected versions a bug affecting two of the functions in this library: forEachSeries and forEachLimit. They should limit the concurrency of some actions but, in practice, they don't. Any code calling these functions will be written thinking they would limit the concurrency but they won't. This could lead to potential security issues in other projects. The problem has been patched in 1.0.4. There is no workaround.

modern-async es una biblioteca de herramientas de JavaScript de código abierto para operaciones asíncronas usando async/await y promesas. En las versiones afectadas se ha detectado un error que afecta a dos de las funciones de esta biblioteca: forEachSeries y forEachLimit. Deberían limitar la concurrencia de algunas acciones pero, en la práctica, no lo hacen. Cualquier código que llame a estas funciones se escribirá pensando que limitarán la concurrencia pero no lo harán. Esto podría conllevar a posibles problemas de seguridad en otros proyectos. El problema ha sido parcheado en la versión 1.0.4. No se presenta ninguna solución

*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
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
  • 2021-09-15 CVE Reserved
  • 2021-10-20 CVE Published
  • 2024-07-05 EPSS Updated
  • 2024-08-04 CVE Updated
  • 2024-08-04 First Exploit
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-400: Uncontrolled Resource Consumption
  • CWE-770: Allocation of Resources Without Limits or Throttling
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Modern-async Project
Search vendor "Modern-async Project"
 Modern-async
Search vendor "Modern-async Project" for product "Modern-async"
 < 1.0.4
Search vendor "Modern-async Project" for product "Modern-async" and version " < 1.0.4"
node.js
Affected