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Alerts This Week
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Ubuntu 22.04 LTS: USN-6792-1 Critical Flask-Security URL Bypass

ubuntu
Calendar Grey May 28, 2024
Dist Ubuntu Esm H88
Flask-Security warning pertains to URL filtering loophole in Ubuntu. Ensure your system is updated to reduce risks.
Flask-Security could be made to bypass URL validation and redirect to arbitary URL.

Summary

Flask-Security could be made to bypass URL validation and redirect to

arbitary URL.

Software Description:

- flask-security: Simple security for Flask apps (Python 3)

Details:

Naom Moshe discovered that Flask-Security incorrectly validated URLs. An

attacker could use this issue to redirect users to arbitrary URLs.

Topics%20covered

Topics Covered

security advisory security issue critical python package url bypass flask-security ubuntu 22.04

Update Instructions

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 22.04 LTS
   python3-flask-security          4.0.0-1ubuntu0.1

Ubuntu 20.04 LTS
   python3-flask-security          1.7.5-2ubuntu0.20.04.1

Ubuntu 18.04 LTS
   python3-flask-security          1.7.5-2ubuntu0.18.04.1~esm1
                                   Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References

https://ubuntu.com/security/notices/USN-6792-1

  CVE-2021-23385

Severity
critical
Lowest
Low
Medium
High
Critical

Ubuntu Security Notice USN-6792-1

Topics%20covered

Topics Covered

security advisory security issue critical python package url bypass flask-security ubuntu 22.04

Package Information

https://launchpad.net/ubuntu/+source/flask-security/4.0.0-1ubuntu0.1
https://launchpad.net/ubuntu/+source/flask-security/1.7.5-2ubuntu0.20.04.1

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