CVE-2022-36028: greenlight Open Redirect — Fix

Description

Greenlight is an end-user interface for BigBlueButton servers. Versions prior to 2.13.0 have an open redirect vulnerability in the Login page due to unchecked the value of the `return_to` cookie. Versions 2.13.0 contains a patch for the issue.

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CVSS v3.1 Score

9.1

CRITICAL

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

Weakness Type (CWE)

CWE-601 CWE-601

Affected Products

Vendor	Product	Versions
bigbluebutton	greenlight	< 2.13.0

References

Advisories & Patches

https://github.com/bigbluebutton/greenlight/commit/20fe1ee71b5703fcc4ed698a959ad224fed19623 https://github.com/bigbluebutton/greenlight/commit/20fe1ee71b5703fcc4ed698a959ad224fed19623

Other References

https://huntr.com/bounties/ba5834bd-1f04-4936-8e93-2442d45403bahttps:// https://huntr.com/bounties/ba5834bd-1f04-4936-8e93-2442d45403bahttps://

Frequently Asked Questions

What is CVE-2022-36028? +

Greenlight is an end-user interface for BigBlueButton servers. Versions prior to 2.13.0 have an open redirect vulnerability in the Login page due to unchecked the value of the `return_to` cookie. Versions 2.13.0 contains a patch for the issue. It has a CVSS v3.1 base score of 9.1 (CRITICAL).

How severe is CVE-2022-36028? +

CVE-2022-36028 has a CVSS v3.1 score of 9.1 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2022-36028? +

CVE-2022-36028 affects products from bigbluebutton, specifically: greenlight. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2022-36028? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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CVE-2022-36028