Cloudanix VulnDB

CVE-2025-59088

High · 8.6

CVSS

8.6

EPSS

0.5%

Published

Nov 12, 2025

CISA due date

—

The record

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 packages

Ecosystem Package Introduced Fixed
AlmaLinux:10 python3-kdcproxy 0 1.0.0-19.el10_1
AlmaLinux:8 bind-dyndb-ldap 0 11.6-6.module_el8.10.0+3980+d78e8e90
AlmaLinux:8 custodia 0 0.6.0-3.module_el8.6.0+2881+2f24dc92
AlmaLinux:8 ipa-client 0 4.9.13-20.module_el8.10.0+4050+3b475c71
AlmaLinux:8 ipa-client-common 0 4.9.13-20.module_el8.10.0+4050+3b475c71
AlmaLinux:8 ipa-client-epn 0 4.9.13-20.module_el8.10.0+4050+3b475c71
AlmaLinux:8 ipa-client-samba 0 4.9.13-20.module_el8.10.0+4050+3b475c71
AlmaLinux:8 ipa-common 0 4.9.13-20.module_el8.10.0+4050+3b475c71
AlmaLinux:8 ipa-healthcheck 0 0.12-6.module_el8.10.0+4036+84b152d9
AlmaLinux:8 ipa-healthcheck-core 0 0.12-6.module_el8.10.0+4036+84b152d9
AlmaLinux:8 ipa-python-compat 0 4.9.13-20.module_el8.10.0+4050+3b475c71
AlmaLinux:8 ipa-selinux 0 4.9.13-20.module_el8.10.0+4050+3b475c71
AlmaLinux:8 ipa-server 0 4.9.13-20.module_el8.10.0+4050+3b475c71
AlmaLinux:8 ipa-server-common 0 4.9.13-20.module_el8.10.0+4050+3b475c71
AlmaLinux:8 ipa-server-dns 0 4.9.13-20.module_el8.10.0+4050+3b475c71
AlmaLinux:8 ipa-server-trust-ad 0 4.9.13-20.module_el8.10.0+4050+3b475c71
AlmaLinux:8 opendnssec 0 2.1.7-2.module_el8.10.0+3980+d78e8e90
AlmaLinux:8 python3-custodia 0 0.6.0-3.module_el8.6.0+2881+2f24dc92
AlmaLinux:8 python3-ipaclient 0 4.9.13-20.module_el8.10.0+4050+3b475c71
AlmaLinux:8 python3-ipalib 0 4.9.13-20.module_el8.10.0+4050+3b475c71
AlmaLinux:8 python3-ipaserver 0 4.9.13-20.module_el8.10.0+4050+3b475c71
AlmaLinux:8 python3-ipatests 0 4.9.13-20.module_el8.10.0+4050+3b475c71
AlmaLinux:8 python3-jwcrypto 0 0.5.0-2.module_el8.10.0+3844+20e075e5
AlmaLinux:8 python3-kdcproxy 0 0.4-5.module_el8.10.0+4069+1d9eaa78.2
AlmaLinux:8 python3-pyusb 0 1.0.0-9.1.module_el8.7.0+3349+cfeff52e
AlmaLinux:8 python3-qrcode 0 5.3-1.module_el8.10.0+3942+63b39a46
AlmaLinux:8 python3-qrcode-core 0 5.3-1.module_el8.10.0+3942+63b39a46
AlmaLinux:8 python3-yubico 0 1.3.2-9.1.module_el8.7.0+3349+cfeff52e
AlmaLinux:8 slapi-nis 0 0.60.0-4.module_el8.10.0+3844+20e075e5.alma.1
AlmaLinux:8 softhsm 0 2.6.0-5.module_el8.6.0+2881+2f24dc92
AlmaLinux:8 softhsm 0 2.6.0-5.module_el8.6.0+3031+2f24dc92
AlmaLinux:8 softhsm-devel 0 2.6.0-5.module_el8.6.0+2881+2f24dc92
AlmaLinux:8 softhsm-devel 0 2.6.0-5.module_el8.6.0+3031+2f24dc92
AlmaLinux:9 python3-kdcproxy 0 1.0.0-9.el9_7

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