CVE-2020-5407
Signature wrapping vulnerability in Spring Security
8.8
HIGH
CVSS 3.1
EPSS 0.66%
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.
How to fix CVE-2020-5407
To remediate CVE-2020-5407, upgrade the affected package to a fixed version below.
- —upgrade to 5.2.4 or later
Is CVE-2020-5407 being exploited?
Low — EPSS is 0.7%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 5.2.0, < 5.2.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |