Vulnerability Details : CVE-2021-35936
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.
Vulnerability category: Information leak
Products affected by CVE-2021-35936
- cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-35936
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 22 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-35936
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:N |
10.0
|
2.9
|
NIST | |
|
5.3
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N |
3.9
|
1.4
|
NIST |
CWE ids for CVE-2021-35936
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: security@apache.org (Secondary)
-
The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.Assigned by: nvd@nist.gov (Primary)
References for CVE-2021-35936
-
https://lists.apache.org/thread.html/r53d6bd7b0a66f92ddaf1313282f10fec802e71246606dd30c16536df%40%3Cusers.airflow.apache.org%3E
CVE-2021-35936: Apache Airflow: No Authentication on Logging Server - Pony MailMailing List;Vendor Advisory
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