Keycloak
CVE-2019-10201
HIGH
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Lifecycle Timeline
1Blast Radius
ecosystem impact- 83 maven packages depend on org.keycloak:keycloak-core (50 direct, 33 indirect)
Ecosystem-wide dependent count for version 7.0.0.
DescriptionNVD
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.
AnalysisAI
It was found that Keycloak's SAML broker, versions up to 6.0.1, did not verify missing message signatures. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, low attack complexity. No vendor patch available.
Technical ContextAI
This vulnerability is classified under CWE-592. 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. Affected products include: Redhat Keycloak, Redhat Single Sign-On. Version information: up to 6.0.1.
RemediationAI
No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
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Same weakness CWE-592 – DEPRECATED: Authentication Bypass Issues
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External POC / Exploit Code
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