CVE-2019-10201GHSA-4FGQ-GQ9G-3RW7
It was found that Keycloak's SAML broker, versions up to 6.0.1, did not verify missing message signatures.
- 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- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean?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 7.0.0
- 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
It was found that Keycloak's SAML broker, versions up to 6.0.1, did not verify missing message signatures. If an attacker modifies the SAML Response and removes the <Signature> sections, the message is still accepted, and the message can be modified. An attacker could use this flaw to impersonate other users and gain access to sensitive information.
Timeline
- CVE published
- Record last updated
Affected versions
- Red Hat keycloak
up to keycloak 6.0.1
- org.keycloak:keycloak-coreMaven
fixed in 7.0.0