CVE & CISA-KEV Catalog

CVE-2021-3524

MEDIUMEPSS 73th pctl
6.5
CVSS v3
NVD

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.

CWE-20Improper Input ValidationCWE-74Injection

How to fix

Remediation Available
cephDebian
Fixed in:14.2.21-1CVE-2021-3524
Fixed in:14.2.21-1CVE-2021-3524
Fixed in:14.2.21-1CVE-2021-3524
Fixed in:14.2.21-1CVE-2021-3524
cephUbuntu
Fixed in:0.80.11-0ubuntu1.14.04.4+esm3USN-7706-1
Fixed in:10.2.11-0ubuntu0.16.04.3+esm2USN-7706-1
Fixed in:12.2.13-0ubuntu0.18.04.10USN-5128-1
Fixed in:15.2.12-0ubuntu0.20.04.1USN-4998-1
ceph-baseUbuntu
Fixed in:12.2.13-0ubuntu0.18.04.10USN-5128-1
Fixed in:15.2.12-0ubuntu0.20.04.1USN-4998-1
ceph-commonUbuntu
Fixed in:0.80.11-0ubuntu1.14.04.4+esm3USN-7706-1
Fixed in:10.2.11-0ubuntu0.16.04.3+esm2USN-7706-1
Fixed in:12.2.13-0ubuntu0.18.04.10USN-5128-1
Fixed in:15.2.12-0ubuntu0.20.04.1USN-4998-1
ceph-mgrUbuntu
Fixed in:15.2.12-0ubuntu0.20.04.1USN-4998-1
ceph-mgr-cephadmUbuntu
Fixed in:15.2.12-0ubuntu0.20.04.1USN-4998-1
ceph-mgr-dashboardUbuntu
Fixed in:15.2.12-0ubuntu0.20.04.1USN-4998-1
ceph-mgr-diskprediction-cloudUbuntu
Fixed in:15.2.12-0ubuntu0.20.04.1USN-4998-1
ceph-mgr-diskprediction-localUbuntu
Fixed in:15.2.12-0ubuntu0.20.04.1USN-4998-1
ceph-mgr-k8seventsUbuntu
Fixed in:15.2.12-0ubuntu0.20.04.1USN-4998-1
ceph-mgr-modules-coreUbuntu
Fixed in:15.2.12-0ubuntu0.20.04.1USN-4998-1
ceph-mgr-rookUbuntu
Fixed in:15.2.12-0ubuntu0.20.04.1USN-4998-1
cephadmUbuntu
Fixed in:15.2.12-0ubuntu0.20.04.1USN-4998-1
radosgwUbuntu
Fixed in:0.80.11-0ubuntu1.14.04.4+esm3USN-7706-1
Fixed in:10.2.11-0ubuntu0.16.04.3+esm2USN-7706-1
Fixed in:15.2.12-0ubuntu0.20.04.1USN-4998-1

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityHigh
AvailabilityNone

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

Exploit Intelligence

1.61%probability of exploitation in 30 days
73rdpercentile

Elevated risk: more likely to be exploited than 73% of all known CVEs.

References

Third-Party Advisory1

Related Vulnerabilities

Other CWE-20 (Improper Input Validation) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2024-3400Critical10.0100%KEV + Ransom-
CVE-2021-45105Medium5.9100%-Fix
CVE-2021-44228Critical10.0100%KEV + RansomFix
CVE-2021-21985Critical9.8100%KEV + RansomFix
CVE-2018-7600Critical9.8100%KEV + RansomFix
CVE-2020-3452High7.5100%KEVFix
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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.