Red Hat Ceph Storage RadosGW 3.x/4.x CORS ExposeHeader Tag Header Injection response splitting

Summaryinfo

A vulnerability labeled as critical has been found in Red Hat Ceph Storage RadosGW 3.x/4.x. This vulnerability affects unknown code of the component CORS ExposeHeader Tag Handler. The manipulation results in response splitting (Header Injection). This vulnerability is cataloged as CVE-2020-10753. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability, which was classified as critical, was found in Red Hat Ceph Storage RadosGW 3.x/4.x. Affected is an unknown part of the component CORS ExposeHeader Tag Handler. The manipulation with an unknown input leads to a response splitting vulnerability (Header Injection). CWE is classifying the issue as CWE-113. The product receives data from an HTTP agent/component (e.g., web server, proxy, browser, etc.), but it does not neutralize or incorrectly neutralizes CR and LF characters before the data is included in outgoing HTTP headers. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

A flaw was found in the Red Hat Ceph Storage RadosGW (Ceph Object Gateway). 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. Ceph versions 3.x and 4.x are vulnerable to this issue.

The weakness was shared 06/26/2020 as not defined bug report (Bugzilla). The advisory is available at bugzilla.redhat.com. This vulnerability is traded as CVE-2020-10753 since 03/20/2020. It is possible to launch the attack remotely. The exploitation doesn't require any form of authentication. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 05/24/2026).

The vulnerability scanner Nessus provides a plugin with the ID 316287 (Unity Linux 20.1060e / 20.1070e Security Update: ceph (UTSA-2026-016657)), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (316287). If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• Red Hat

Name

• Ceph Storage RadosGW

Version

• 3.x
• 4.x

License

• open-source

Website

• Vendor: https://www.redhat.com/

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If you want to get best quality of vulnerability data, you may have to visit VulDB.

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