QID 150364

Date Published: 2021-09-16

QID 150364: Keycloak SSRF Vulnerability (CVE-2020-10770)

A flaw was found in Keycloak before 13.0.0, where it is possible to force the server to call out an unverified URL using the OIDC parameter request_uri. This flaw allows an attacker to use this parameter to execute a Server-side request forgery (SSRF) attack.

Affected Versions:
All versions up to 12.0.4

QID Detection Logic:
This detection sends a specially-crafted GET request with request_uri parameter where vulnerable servers will make a DNS query that will trigger the Qualys Periscope detection mechanism.

A remote attacker could exploit this vulnerability to execute a Blind SSRF attack by measuring the response time to perform a port scan of the target server or internally accessible hosts.

CVSS V3 rated as Medium - 5.3 severity.

CVSS V2 rated as Medium - 5 severity.

Solution

Upgrade to Keycloak 13.0.0 version or later

Vendor References

Bugzilla - 1846270 - bugzilla.redhat.com/show_bug.cgi?id=1846270

CVEs related to QID 150364

CVE-2020-10770 |

Software Advisories

Advisory ID	Software	Component	Link
Keycloak			www.keycloak.org/downloads

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