CVE-2025-25293

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-25293
ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. Prior to versions 1.12.4 and 1.18.0, ruby-saml is susceptible to remote Denial of Service (DoS) with compressed SAML responses. ruby-saml uses zlib to decompress SAML responses in case they're compressed. It is possible to bypass the message size check with a compressed assertion since the message size is checked before inflation and not after. This issue may lead to remote Denial of Service (DoS). Versions 1.12.4 and 1.18.0 fix the issue.

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://about.gitlab.com/releases/2025/03/12/patch-release-gitlab-17-9-2-released Patch
https://github.blog/security/sign-in-as-anyone-bypassing-saml-sso-authentication-with-parser-differentials Exploit Third Party Advisory
https://github.com/SAML-Toolkits/ruby-saml/commit/acac9e9cc0b9a507882c614f25d41f8b47be349a Patch
https://github.com/SAML-Toolkits/ruby-saml/commit/e2da4c6dae7dc01a4d9cd221395140a67e2b3eb1 Patch
https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.12.4 Release Notes
https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.0 Release Notes
https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-92rq-c8cf-prrq Vendor Advisory
https://github.com/omniauth/omniauth-saml/security/advisories/GHSA-hw46-3hmr-x9xv Vendor Advisory
https://security.netapp.com/advisory/ntap-20250314-0008/ Third Party Advisory
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:omniauth:omniauth_saml:*:*:*:*:*:ruby:*:*
cpe:2.3:a:omniauth:omniauth_saml:*:*:*:*:*:ruby:*:*
cpe:2.3:a:omniauth:omniauth_saml:*:*:*:*:*:ruby:*:*
cpe:2.3:a:onelogin:ruby-saml:*:*:*:*:*:*:*:*
cpe:2.3:a:onelogin:ruby-saml:*:*:*:*:*:*:*:*
History

01 Aug 2025, 14:45

Type Values Removed Values Added
References () https://about.gitlab.com/releases/2025/03/12/patch-release-gitlab-17-9-2-released - () https://about.gitlab.com/releases/2025/03/12/patch-release-gitlab-17-9-2-released - Patch
References () https://github.blog/security/sign-in-as-anyone-bypassing-saml-sso-authentication-with-parser-differentials - () https://github.blog/security/sign-in-as-anyone-bypassing-saml-sso-authentication-with-parser-differentials - Exploit, Third Party Advisory
References () https://github.com/SAML-Toolkits/ruby-saml/commit/acac9e9cc0b9a507882c614f25d41f8b47be349a - () https://github.com/SAML-Toolkits/ruby-saml/commit/acac9e9cc0b9a507882c614f25d41f8b47be349a - Patch
References () https://github.com/SAML-Toolkits/ruby-saml/commit/e2da4c6dae7dc01a4d9cd221395140a67e2b3eb1 - () https://github.com/SAML-Toolkits/ruby-saml/commit/e2da4c6dae7dc01a4d9cd221395140a67e2b3eb1 - Patch
References () https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.12.4 - () https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.12.4 - Release Notes
References () https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.0 - () https://github.com/SAML-Toolkits/ruby-saml/releases/tag/v1.18.0 - Release Notes
References () https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-92rq-c8cf-prrq - () https://github.com/SAML-Toolkits/ruby-saml/security/advisories/GHSA-92rq-c8cf-prrq - Vendor Advisory
References () https://github.com/omniauth/omniauth-saml/security/advisories/GHSA-hw46-3hmr-x9xv - () https://github.com/omniauth/omniauth-saml/security/advisories/GHSA-hw46-3hmr-x9xv - Vendor Advisory
References () https://security.netapp.com/advisory/ntap-20250314-0008/ - () https://security.netapp.com/advisory/ntap-20250314-0008/ - Third Party Advisory
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 7.5
First Time Omniauth
Onelogin ruby-saml
Omniauth omniauth Saml
Onelogin
CPE cpe:2.3:a:omniauth:omniauth_saml:*:*:*:*:*:ruby:*:*
cpe:2.3:a:onelogin:ruby-saml:*:*:*:*:*:*:*:*

14 Mar 2025, 10:15

Type Values Removed Values Added
Summary
  • (es) ruby-saml proporciona inicio de sesión único (SSO) con lenguaje de marcado para aserciones de seguridad (SAML) para Ruby. En versiones anteriores a la 1.12.4 y la 1.18.0, ruby-saml era susceptible a ataques de denegación de servicio (DoS) remotos con respuestas SAML comprimidas. ruby-saml utiliza zlib para descomprimir las respuestas SAML en caso de que estén comprimidas. Es posible omitir la comprobación del tamaño del mensaje con una aserción comprimida, ya que el tamaño del mensaje se comprueba antes del inflado, no después. Este problema puede provocar ataques de denegación de servicio (DoS) remotos. Las versiones 1.12.4 y 1.18.0 solucionan el problema.
References
  • () https://security.netapp.com/advisory/ntap-20250314-0008/ -

12 Mar 2025, 22:15

Type Values Removed Values Added
References
  • () https://github.blog/security/sign-in-as-anyone-bypassing-saml-sso-authentication-with-parser-differentials -

12 Mar 2025, 21:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-03-12 21:15

Updated : 2025-08-01 14:45

NVD link : CVE-2025-25293

Mitre link : CVE-2025-25293

CVE.ORG link : CVE-2025-25293

JSON object : View

Products Affected

onelogin

  • ruby-saml

omniauth

  • omniauth_saml
CWE
CWE-400

Uncontrolled Resource Consumption