// For flags

CVE-2024-40632

Linkerd potential access to the shutdown endpoint

Severity Score

3.7
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Track
*SSVC
Descriptions

Linkerd is an open source, ultralight, security-first service mesh for Kubernetes. In affected versions when the application being run by linkerd is susceptible to SSRF, an attacker could potentially trigger a denial-of-service (DoS) attack by making requests to localhost:4191/shutdown. Linkerd could introduce an optional environment variable to control a token that must be passed as a header. Linkerd should reject shutdown requests that do not include this header. This issue has been addressed in release version edge-24.6.2 and all users are advised to upgrade. There are no known workarounds for this vulnerability.

Linkerd es una malla de servicios de código abierto, ultraligera y que prioriza la seguridad para Kubernetes. En las versiones afectadas, cuando la aplicación que ejecuta Linkerd es susceptible a SSRF, un atacante podría desencadenar un ataque de denegación de servicio (DoS) al realizar solicitudes a localhost:4191/shutdown. Linkerd podría introducir una variable de entorno opcional para controlar un token que debe pasarse como encabezado. Linkerd debería rechazar las solicitudes de cierre que no incluyan este encabezado. Este problema se solucionó en la versión edge-24.6.2 y se recomienda a todos los usuarios que actualicen. No se conocen workarounds para esta vulnerabilidad.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
Low
* Common Vulnerability Scoring System
SSVC
  • Decision:Track
Exploitation
None
Automatable
No
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-07-08 CVE Reserved
  • 2024-07-15 CVE Published
  • 2024-07-16 EPSS Updated
  • 2024-08-02 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-918: Server-Side Request Forgery (SSRF)
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Linkerd
Search vendor "Linkerd"
Linkerd2
Search vendor "Linkerd" for product "Linkerd2"
*en
Affected