CVE-2020-5397GHSA-7PM4-G2QJ-J85X
CSRF Attack via CORS Preflight Requests with Spring MVC or Spring WebFlux
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in v5.2.3.RELEASE, 5.2.3
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
Spring Framework, versions 5.2.x prior to 5.2.3 are vulnerable to CSRF attacks through CORS preflight requests that target Spring MVC (spring-webmvc module) or Spring WebFlux (spring-webflux module) endpoints. Only non-authenticated endpoints are vulnerable because preflight requests should not include credentials and therefore requests should fail authentication. However a notable exception to this are Chrome based browsers when using client certificates for authentication since Chrome sends TLS client certificates in CORS preflight requests in violation of spec requirements. No HTTP body can be sent or received as a result of this attack.
Timeline
- CVE published
- Record last updated
Affected versions
- Spring Spring Framework
From 5.2 · fixed in v5.2.3.RELEASE
- org.springframework:spring-webmvcMaven
From 5.2.0 · fixed in 5.2.3
- org.springframework:spring-webfluxMaven
From 5.2.0 · fixed in 5.2.3