CVE-2021-29621

Observable Response Discrepancy in Flask-AppBuilder

Description

Flask-AppBuilder is a development framework, built on top of Flask. User enumeration in database authentication in Flask-AppBuilder <= 3.2.3. Allows for a non authenticated user to enumerate existing accounts by timing the response time from the server when you are logging in. Upgrade to version 3.3.0 or higher to resolve.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.29%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory pypi.org
Affected: dpgaspar Flask-AppBuilder
Published at:
Updated at:

References

Link Tags
https://github.com/dpgaspar/Flask-AppBuilder/security/advisories/GHSA-434h-p4gx-jm89 third party advisory
https://github.com/dpgaspar/Flask-AppBuilder/commit/780bd0e8fbf2d36ada52edb769477e0a4edae580 third party advisory patch
https://pypi.org/project/Flask-AppBuilder/ product third party advisory
https://lists.apache.org/thread.html/r5b754118ba4e996adf03863705d34168bffec202da5c6bdc9bf3add5%40%3Cannounce.apache.org%3E mailing list
https://lists.apache.org/thread.html/r466759f377651f0a690475d5a52564d0e786e82c08d5a5730a4f8352%40%3Cannounce.apache.org%3E mailing list
https://lists.apache.org/thread.html/r91067f953906d93aaa1c69fe2b5472754019cc6bd4f1ba81349d62a0%40%3Ccommits.airflow.apache.org%3E mailing list

Frequently Asked Questions

What is the severity of CVE-2021-29621?
CVE-2021-29621 has been scored as a medium severity vulnerability.
How to fix CVE-2021-29621?
To fix CVE-2021-29621, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-29621 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-29621 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-29621?
CVE-2021-29621 affects dpgaspar Flask-AppBuilder.
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