CVE-2021-3524
Medium
Description
A flaw was found in the Red Hat Ceph Storage RadosGW (Ceph Object Gateway) in versions before 14.2.21. The vulnerability is related to the injection of HTTP headers via a CORS ExposeHeader tag. The newline character in the ExposeHeader tag in the CORS configuration file generates a header injection in the response when the CORS request is made. In addition, the prior bug fix for CVE-2020-10753 did not account for the use of \r as a header separator, thus a new flaw has been created.
SeverityMedium
CVSS6.5
Exploit probability—
Product
Redhat Ceph
PublishedMay 17, 2021
First seenMay 17, 2021
Weakness typeCWE-20Improper input validation
How to fix
Update
- redhat ceph14.2.21 or later
Vendor advisories
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LPCJN2YDZCBMF4FOJXSTAADKFGEQEO7O/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FX5ZHI5L7FOHXOSEV3TYBAL66DMLJ7V5/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ZRUNDH2TJRZRWL3DCH2PQ6KROWTPQ7AJ/
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| redhat ceph | v < 14.2.21 | 14.2.21 |
| redhat ceph_storage | 4.0 | — |
| fedoraproject fedora | 32, 33, 34 | — |
| debian debian_linux | 9.0 | — |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.