CVE-2021-28122

Public Exploit

Description

A request-validation issue was discovered in Open5GS 2.1.3 through 2.2.x before 2.2.1. The WebUI component allows an unauthenticated user to use a crafted HTTP API request to create, read, update, or delete entries in the subscriber database. For example, new administrative users can be added. The issue occurs because Express is not set up to require authentication.

Category

9.8
CVSS
Severity: Critical
CVSS 3.1 •
CVSS 2.0 •
EPSS 1.10% Top 25%
Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com Third-Party Advisory github.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://github.com/open5gs/open5gs/releases third party advisory release notes
https://github.com/open5gs/open5gs/issues/837 third party advisory exploit
https://github.com/open5gs/open5gs/pull/838 third party advisory patch
https://github.com/open5gs/open5gs/compare/v2.2.0...v2.2.1 third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2021-28122?
CVE-2021-28122 has been scored as a critical severity vulnerability.
How to fix CVE-2021-28122?
To fix CVE-2021-28122, 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-2021-28122 being actively exploited in the wild?
It is possible that CVE-2021-28122 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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