// For flags

CVE-2021-35936

No Authentication on Logging Server

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

If remote logging is not used, the worker (in the case of CeleryExecutor) or the scheduler (in the case of LocalExecutor) runs a Flask logging server and is listening on a specific port and also binds on 0.0.0.0 by default. This logging server had no authentication and allows reading log files of DAG jobs. This issue affects Apache Airflow < 2.1.2.

Si no es usado el registro remoto, el trabajador (en el caso de CeleryExecutor) o el planificador (en el caso de LocalExecutor) ejecuta un servidor de registro Flask y está escuchando en un puerto específico y también se vincula en 0.0.0.0 por defecto. Este servidor de registro no presenta autenticación y permite leer los archivos de registro de los trabajos DAG. Este problema afecta a Apache Airflow versiones anteriores a 2.1.2.

*Credits: Apache Airflow would like to thank Dolev Farhi for reporting this issue.
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-06-29 CVE Reserved
  • 2021-08-16 CVE Published
  • 2024-07-08 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
  • CWE-306: Missing Authentication for Critical Function
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Apache
Search vendor "Apache"
Airflow
Search vendor "Apache" for product "Airflow"
< 2.1.2
Search vendor "Apache" for product "Airflow" and version " < 2.1.2"
-
Affected