High severity · published Aug 14, 2019
CVE-2019-10201
It was found that Keycloak's SAML broker, versions up to 6.0.1, did not verify missing message signatures
8.1
CVSS
0.7%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.7% · higher than 53% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
KE
Keycloak · Redhat
through 6.0.1 · source: NVD
SS
Single Sign-on · Redhat
7.0; 7.3.3 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-10201
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-10201
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10201
More from Keycloak
9.8
CVE-2022-1245
A privilege escalation flaw was found in the token exchange feature of keycloak
9.8
CVE-2019-14910
A vulnerability was found in keycloak 7.x, when keycloak is configured with LDAP user federation and StartTLS is used instead of SSL/TLS from the LDAP server (ldaps), in this case…
9.6
CVE-2021-20195
A flaw was found in keycloak in versions before 13.0.0
9.1
CVE-2022-3782
keycloak: path traversal via double URL encoding
9.1
CVE-2019-14837
A flaw was found in keycloack before version 8.0.0