CVE-2020-5407 is a signature wrapping vulnerability affecting Spring Security versions 5.2.x before 5.2.4 and 5.3.x before 5.3.2, specifically within the spring-security-saml2-service-provider component. This flaw allows an authenticated attacker to append a malicious, yet seemingly valid, assertion to an otherwise legitimate SAML response, which Spring Security will then accept. Rated 8.8 HIGH on the CVSS scale, it presents a significant risk with high impacts on confidentiality, integrity, and availability, requiring low attack complexity and no user interaction. Despite its severity, there is currently no evidence of active exploitation, public exploit code, or significant community discussion.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 5.2.0, < 5.2.4CPE matchmatch criteria | cpe:2.3:a:pivotal_software:spring_security:*:*:*:*:*:*:*:* | ||
>= 5.3.0, < 5.3.2CPE matchmatch criteria | cpe:2.3:a:pivotal_software:spring_security:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.