8.0
HIGH
CVE-2023-40273
Apache Airflow Session Fixation Vulnerability
Description

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.

INFO

Published Date :

Aug. 23, 2023, 4:15 p.m.

Last Modified :

Aug. 29, 2023, 4:14 p.m.

Remotely Exploitable :

Yes !

Impact Score :

5.9

Exploitability Score :

2.1
Affected Products

The following products are affected by CVE-2023-40273 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Apache airflow
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-40273.

URL Resource
https://github.com/apache/airflow/pull/33347 Third Party Advisory
https://lists.apache.org/thread/9rdmv8ln4y4ncbyrlmjrsj903x4l80nj Vendor Advisory
https://www.openwall.com/lists/oss-security/2023/08/23/1 Mailing List Third Party Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-40273 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2023-40273 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Initial Analysis by [email protected]

    Aug. 29, 2023

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
    Changed Reference Type https://github.com/apache/airflow/pull/33347 No Types Assigned https://github.com/apache/airflow/pull/33347 Third Party Advisory
    Changed Reference Type https://lists.apache.org/thread/9rdmv8ln4y4ncbyrlmjrsj903x4l80nj No Types Assigned https://lists.apache.org/thread/9rdmv8ln4y4ncbyrlmjrsj903x4l80nj Vendor Advisory
    Changed Reference Type https://www.openwall.com/lists/oss-security/2023/08/23/1 No Types Assigned https://www.openwall.com/lists/oss-security/2023/08/23/1 Mailing List, Third Party Advisory
    Added CPE Configuration OR *cpe:2.3:a:apache:airflow:*:*:*:*:*:*:*:* versions up to (including) 2.7.0
  • CVE Modified by [email protected]

    Aug. 25, 2023

    Action Type Old Value New Value
    Removed Reference http://www.openwall.com/lists/oss-security/2023/08/23/1 [No Types Assigned]
    Added Reference https://www.openwall.com/lists/oss-security/2023/08/23/1 [No Types Assigned]
  • CVE Modified by [email protected]

    Aug. 23, 2023

    Action Type Old Value New Value
    Added Reference http://www.openwall.com/lists/oss-security/2023/08/23/1 [No Types Assigned]
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-40273 is associated with the following CWEs:

Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

0.24 }} 0.10%

score

0.62507

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability