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Vulnerability · Published May 17, 2021 · Assigned by redhat

CVE-2021-3524

Medium 6.5

In plain English

A medium-severity improper input validation in ceph. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.6% (higher than 76% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS NVD)6.5Medium
Exploit odds (30 days)1.6%top 24.0% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known

Official 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.

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12ceph14.2.21-1DEBIAN-CVE-2021-3524
Debian:13ceph14.2.21-1DEBIAN-CVE-2021-3524
Debian:14ceph14.2.21-1DEBIAN-CVE-2021-3524

Affected products (as reported)

VendorProductVersions
n/a ceph ceph 14.2.21

Weakness: CWE-20

References