ruby-saml provides security assertion markup language (SAML) single sign-on (SSO) for Ruby. An authentication bypass vulnerability was found in ruby-saml prior to versions 1.12.4 and 1.18.0 due to a parser differential. ReXML and Nokogiri parse XML differently, the parsers can generate entirely different document structures from the same XML input. That allows an attacker to be able to execute a Signature Wrapping attack. This issue may lead to authentication bypass. Versions 1.12.4 and 1.18.0 contain a patch for the issue.
The product does not verify, or incorrectly verifies, the cryptographic signature for data.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Omniauth_saml | Omniauth | * | 1.10.6 (excluding) |
| Omniauth_saml | Omniauth | 2.0.0 (including) | 2.1.3 (excluding) |
| Omniauth_saml | Omniauth | 2.2.0 (including) | 2.2.3 (excluding) |
| Ruby-saml | Onelogin | * | 1.12.4 (excluding) |
| Ruby-saml | Onelogin | 1.13.0 (including) | 1.18.0 (excluding) |
| Ruby-saml | Ubuntu | esm-apps/bionic | * |
| Ruby-saml | Ubuntu | esm-apps/focal | * |
| Ruby-saml | Ubuntu | esm-apps/jammy | * |
| Ruby-saml | Ubuntu | esm-apps/noble | * |
| Ruby-saml | Ubuntu | esm-apps/xenial | * |
| Ruby-saml | Ubuntu | focal | * |
| Ruby-saml | Ubuntu | jammy | * |
| Ruby-saml | Ubuntu | noble | * |
| Ruby-saml | Ubuntu | oracular | * |
| Ruby-saml | Ubuntu | upstream | * |