CVE-2020-5407 Information

Description

Spring Security versions 5.2.x prior to 5.2.4 and 5.3.x prior to 5.3.2 contain a signature wrapping vulnerability during SAML response validation. When using the spring-security-saml2-service-provider component a malicious user can carefully modify an otherwise valid SAML response and append an arbitrary assertion that Spring Security will accept as valid.

CVSS Vector

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

Reference

https://lists.apache.org/thread.html/r73af928cf64bebf78b7fa4bc56a5253273ec7829f5f5827f64c72fc7@3Cissues.servicemix.apache.org3E https://lists.apache.org/thread.html/ra19a4e7236877fe12bfb52db07b27ad72d9e7a9f5e27bba7e928e18a@3Cdev.geode.apache.org3E https://lists.apache.org/thread.html/rd99601fbca514f214f88f9e53fd5be3cfbff05b350c994b4ec2e184c@3Cdev.geode.apache.org3E https://tanzu.vmware.com/security/cve-2020-5407 https://www.oracle.com/security-alerts/cpuoct2020.html

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

HIGH

Availability Impact

HIGH

Base Score

HIGH

Base Severity

8.8