Red Hat Certificate System 9
Monthly
Server-side request forgery in Dogtag PKI's ACME responder enables unauthenticated ACME account holders to direct the certificate server to make arbitrary HTTP GET requests to internal network addresses. The validator incorrectly accepts IP address literals as valid DNS identifiers and follows HTTP redirects without enforcing RFC-compliant public-address filtering, allowing internal network reconnaissance. When the InMemory database backend is in use, the response body returned by internal services is exposed to the attacker through ACME challenge error messages, compounding the confidentiality impact. No public exploit code or active exploitation has been identified at time of analysis.
Authorization bypass in Red Hat Certificate System's CA renewal path allows an authenticated user to renew a certificate belonging to a different realm without the required realm-based authorization check. Affects versions 9, 10, and 11 of the Certificate System on Red Hat Enterprise Linux 6 through 10. No evidence of active exploitation or public exploit code exists at the time of analysis, and EPSS probability is low (0.21%).
Red Hat Certificate System (RHCS) 9 is susceptible to a resource exhaustion denial-of-service condition triggered by unauthenticated remote attackers flooding its TLS-exposed HTTP endpoint. Repeated requests cause the underlying Java process to exhaust available heap memory, resulting in an Out of Memory crash that takes the certificate authority service offline. No public exploit code or CISA KEV listing has been identified at time of analysis, but the low attack complexity and absence of authentication requirements make this a realistic threat to any internet- or intranet-exposed RHCS deployment.
Server-side request forgery in Dogtag PKI's ACME responder enables unauthenticated ACME account holders to direct the certificate server to make arbitrary HTTP GET requests to internal network addresses. The validator incorrectly accepts IP address literals as valid DNS identifiers and follows HTTP redirects without enforcing RFC-compliant public-address filtering, allowing internal network reconnaissance. When the InMemory database backend is in use, the response body returned by internal services is exposed to the attacker through ACME challenge error messages, compounding the confidentiality impact. No public exploit code or active exploitation has been identified at time of analysis.
Authorization bypass in Red Hat Certificate System's CA renewal path allows an authenticated user to renew a certificate belonging to a different realm without the required realm-based authorization check. Affects versions 9, 10, and 11 of the Certificate System on Red Hat Enterprise Linux 6 through 10. No evidence of active exploitation or public exploit code exists at the time of analysis, and EPSS probability is low (0.21%).
Red Hat Certificate System (RHCS) 9 is susceptible to a resource exhaustion denial-of-service condition triggered by unauthenticated remote attackers flooding its TLS-exposed HTTP endpoint. Repeated requests cause the underlying Java process to exhaust available heap memory, resulting in an Out of Memory crash that takes the certificate authority service offline. No public exploit code or CISA KEV listing has been identified at time of analysis, but the low attack complexity and absence of authentication requirements make this a realistic threat to any internet- or intranet-exposed RHCS deployment.