// For flags

CVE-2021-3524

gateway: radosgw: CRLF injection

Severity Score

6.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

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.

Se encontró un fallo en Red Hat Ceph Storage RadosGW (Ceph Object Gateway) en versiones anteriores a la 14.2.21. La vulnerabilidad está relacionada con la inyección de encabezados HTTP por medio de una etiqueta CORS ExposeHeader. El carácter de nueva línea en la etiqueta ExposeHeader en el archivo de configuración CORS genera una inyección de encabezado en la respuesta cuando se realiza la petición CORS. Además, la corrección de bug anterior para CVE-2020-10753 no tenía en cuenta el uso de \r como separador de encabezado, por lo que un nuevo fallo ha sido creado

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 making the CORS request. The highest threat from this vulnerability is to integrity.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
None
Integrity
Partial
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-04-30 CVE Reserved
  • 2021-05-17 CVE Published
  • 2024-07-18 EPSS Updated
  • 2024-08-03 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-20: Improper Input Validation
  • CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Redhat
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Ceph
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< 14.2.21
Search vendor "Redhat" for product "Ceph" and version " < 14.2.21"
-
Affected
Redhat
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Ceph Storage
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4.0
Search vendor "Redhat" for product "Ceph Storage" and version "4.0"
-
Affected
Fedoraproject
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Fedora
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32
Search vendor "Fedoraproject" for product "Fedora" and version "32"
-
Affected
Fedoraproject
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Fedora
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33
Search vendor "Fedoraproject" for product "Fedora" and version "33"
-
Affected
Fedoraproject
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Fedora
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34
Search vendor "Fedoraproject" for product "Fedora" and version "34"
-
Affected
Debian
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Debian Linux
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9.0
Search vendor "Debian" for product "Debian Linux" and version "9.0"
-
Affected