CVE-2023-40273

2023-08-2316:15:09

CWE-384

[email protected]

web.nvd.nist.gov

cve

apache airflow

session fixation

vulnerability

security

upgrade

nvd

8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

7.7 High

AI Score

Confidence

High

0.001 Low

EPSS

Percentile

47.1%

JSON

The session fixation vulnerability allowed the authenticated user to continue accessing Airflow webserver even after the password of the user has been reset by the admin - up until the expiry of the session of the user. Other than manually cleaning the session database (for database session backend), or changing the secure_key and restarting the webserver, there were no mechanisms to force-logout the user (and all other users with that).

With this fix implemented, when using the database session backend, the existing sessions of the user are invalidated when the password of the user is reset. When using the securecookie session backend, the sessions are NOT invalidated and still require changing the secure key and restarting the webserver (and logging out all other users), but the user resetting the password is informed about it with a flash message warning displayed in the UI. Documentation is also updated explaining this behaviour.

Users of Apache Airflow are advised to upgrade to version 2.7.0 or newer to mitigate the risk associated with this vulnerability.

Affected configurations

Vulners

NVD

Node

apacheairflowRange≤2.7.0

CPENameOperatorVersion
apache:airflowapache airflowle2.7.0

CPE	Name	Operator	Version
apache:airflow	apache airflow	le	2.7.0

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Apache Airflow",
    "vendor": "Apache Software Foundation",
    "versions": [
      {
        "lessThan": "2.7.0",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      }
    ]
  }
]