Bug 2393955 (CVE-2025-59088)
| Summary: | CVE-2025-59088 python-kdcproxy: Unauthenticated SSRF via Realm‑Controlled DNS SRV | ||
|---|---|---|---|
| Product: | [Other] Security Response | Reporter: | OSIDB Bzimport <bzimport> |
| Component: | vulnerability | Assignee: | Product Security DevOps Team <prodsec-dev> |
| Status: | NEW --- | QA Contact: | |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | unspecified | CC: | security-response-team |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | --- | |
| Doc Text: |
If kdcproxy receives a request for a realm which does not have server addresses defined in its configuration, by default, it will query SRV records in the DNS zone matching the requested realm name. This creates a server-side request forgery vulnerability, since an attacker could send a request for a realm matching a DNS zone where they created SRV records pointing to arbitrary ports and hostnames (which may resolve to loopback or internal IP addresses). This vulnerability can be exploited to probe internal network topology and firewall rules, perform port scanning, and exfiltrate data. Deployments where
the "use_dns" setting is explicitly set to false are not affected.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2414550, 2414551, 2415861 | ||
| Bug Blocks: | |||
| Deadline: | 2025-11-12 | ||
|
Description
OSIDB Bzimport
2025-09-08 21:33:30 UTC
This issue has been addressed in the following products: Red Hat Enterprise Linux 10.0 Extended Update Support Via RHSA-2025:21141 https://access.redhat.com/errata/RHSA-2025:21141 This issue has been addressed in the following products: Red Hat Enterprise Linux 10 Via RHSA-2025:21142 https://access.redhat.com/errata/RHSA-2025:21142 This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2025:21139 https://access.redhat.com/errata/RHSA-2025:21139 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.6 Extended Update Support Via RHSA-2025:21138 https://access.redhat.com/errata/RHSA-2025:21138 This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2025:21140 https://access.redhat.com/errata/RHSA-2025:21140 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Via RHSA-2025:21448 https://access.redhat.com/errata/RHSA-2025:21448 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Extended Update Support Via RHSA-2025:21748 https://access.redhat.com/errata/RHSA-2025:21748 This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Via RHSA-2025:21806 https://access.redhat.com/errata/RHSA-2025:21806 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.2 Advanced Update Support Via RHSA-2025:21821 https://access.redhat.com/errata/RHSA-2025:21821 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Via RHSA-2025:21820 https://access.redhat.com/errata/RHSA-2025:21820 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Red Hat Enterprise Linux 8.6 Telecommunications Update Service Via RHSA-2025:21819 https://access.redhat.com/errata/RHSA-2025:21819 This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Red Hat Enterprise Linux 8.8 Telecommunications Update Service Via RHSA-2025:21818 https://access.redhat.com/errata/RHSA-2025:21818 This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Extended Lifecycle Support Via RHSA-2025:22982 https://access.redhat.com/errata/RHSA-2025:22982 |