Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| latchset / kdcproxy | affected 0 before 1.1.0 |
| Red Hat / Red Hat Enterprise Linux 10 | unaffected 0:1.0.0-19.el10_1 before * |
| Red Hat / Red Hat Enterprise Linux 10.0 Extended Update Support | unaffected 0:1.0.0-19.el10_0 before * |
| Red Hat / Red Hat Enterprise Linux 7 Extended Lifecycle Support | unaffected 0:0.3.2-3.el7_9.3 before * |
| Red Hat / Red Hat Enterprise Linux 8 | unaffected 8100020251103113748.143e9e98 before * |
| Red Hat / Red Hat Enterprise Linux 8 | unaffected 8100020251028161822.823393f5 before * |
| Red Hat / Red Hat Enterprise Linux 8.2 Advanced Update Support | unaffected 8020020251106022345.792f4060 before * |
| Red Hat / Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | unaffected 8040020251103205102.5b01ab7e before * |
| Red Hat / Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | unaffected 8040020251103205102.5b01ab7e before * |
| Red Hat / Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | unaffected 8060020251030180424.ada582f1 before * |
| Red Hat / Red Hat Enterprise Linux 8.6 Telecommunications Update Service | unaffected 8060020251030180424.ada582f1 before * |
| Red Hat / Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | unaffected 8060020251030180424.ada582f1 before * |
| Red Hat / Red Hat Enterprise Linux 8.8 Telecommunications Update Service | unaffected 8080020251029082621.b0a6ceea before * |
| Red Hat / Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | unaffected 8080020251029082621.b0a6ceea before * |
| Red Hat / Red Hat Enterprise Linux 9 | unaffected 0:1.0.0-9.el9_7 before * |
| Red Hat / Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | unaffected 0:1.0.0-7.el9_0.1 before * |
| Red Hat / Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | unaffected 0:1.0.0-7.el9_2.1 before * |
| Red Hat / Red Hat Enterprise Linux 9.4 Extended Update Support | unaffected 0:1.0.0-7.el9_4.1 before * |
| Red Hat / Red Hat Enterprise Linux 9.6 Extended Update Support | unaffected 0:1.0.0-9.el9_6 before * |
CWE
CWE-918
References
- https://access.redhat.com/errata/RHSA-2025:21138
- https://access.redhat.com/errata/RHSA-2025:21139
- https://access.redhat.com/errata/RHSA-2025:21140
- https://access.redhat.com/errata/RHSA-2025:21141
- https://access.redhat.com/errata/RHSA-2025:21142
- https://access.redhat.com/errata/RHSA-2025:21448
- https://access.redhat.com/errata/RHSA-2025:21748
- https://access.redhat.com/errata/RHSA-2025:21806
- https://access.redhat.com/errata/RHSA-2025:21818
- https://access.redhat.com/errata/RHSA-2025:21819
- https://access.redhat.com/errata/RHSA-2025:21820
- https://access.redhat.com/errata/RHSA-2025:21821
- https://access.redhat.com/errata/RHSA-2025:22982
- https://access.redhat.com/security/cve/CVE-2025-59088
- https://bugzilla.redhat.com/show_bug.cgi?id=2393955
- https://github.com/latchset/kdcproxy/pull/68
ADP enrichment
No English description supplied.
No references supplied.