CVE-2025-59088 (GCVE-0-2025-59088)

Vulnerability from cvelistv5 – Published: 2025-11-12 16:35 – Updated: 2026-11-04 21:57
VLAI
Title
Python-kdcproxy: unauthenticated ssrf via realm‑controlled dns srv
Summary
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.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-11-12 20:48 UTC
CWE
  • CWE-918 - Server-Side Request Forgery
Assigner
redhat CNA under the redhat root
CNA scorecard B 82/100 over 1200 records in the last 180 days details
References
URL Tags
https://access.redhat.com/errata/RHSA-2025:21138 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21139 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21140 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21141 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21142 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21448 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21748 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21806 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21818 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21819 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21820 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:21821 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2025:22982 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2025-59088 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2393955 issue-trackingx_refsource_REDHAT
https://github.com/latchset/kdcproxy/pull/68
Impacted products
Vendor Product Version CPE status
latchset kdcproxy Affected: 0 , < 1.1.0 (semver)
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Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:1.0.0-19.el10_1 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:10.1
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Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support Unaffected: 0:1.0.0-19.el10_0 , < * (rpm)
    cpe:/o:redhat:enterprise_linux_eus:10.0
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Red Hat Red Hat Enterprise Linux 7 Extended Lifecycle Support Unaffected: 0:0.3.2-3.el7_9.3 , < * (rpm)
    cpe:/o:redhat:rhel_els:7
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Red Hat Red Hat Enterprise Linux 8 Unaffected: 8100020251103113748.143e9e98 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::appstream
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Red Hat Red Hat Enterprise Linux 8 Unaffected: 8100020251028161822.823393f5 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::appstream
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Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support Unaffected: 8020020251106022345.792f4060 , < * (rpm)
    cpe:/a:redhat:rhel_aus:8.2::appstream
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Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Unaffected: 8040020251103205102.5b01ab7e , < * (rpm)
    cpe:/a:redhat:rhel_aus:8.4::appstream
    cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
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Red Hat Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On Unaffected: 8040020251103205102.5b01ab7e , < * (rpm)
    cpe:/a:redhat:rhel_aus:8.4::appstream
    cpe:/a:redhat:rhel_eus_long_life:8.4::appstream
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Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 8060020251030180424.ada582f1 , < * (rpm)
    cpe:/a:redhat:rhel_aus:8.6::appstream
    cpe:/a:redhat:rhel_e4s:8.6::appstream
    cpe:/a:redhat:rhel_tus:8.6::appstream
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Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service Unaffected: 8060020251030180424.ada582f1 , < * (rpm)
    cpe:/a:redhat:rhel_aus:8.6::appstream
    cpe:/a:redhat:rhel_e4s:8.6::appstream
    cpe:/a:redhat:rhel_tus:8.6::appstream
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Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Unaffected: 8060020251030180424.ada582f1 , < * (rpm)
    cpe:/a:redhat:rhel_aus:8.6::appstream
    cpe:/a:redhat:rhel_e4s:8.6::appstream
    cpe:/a:redhat:rhel_tus:8.6::appstream
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Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 8080020251029082621.b0a6ceea , < * (rpm)
    cpe:/a:redhat:rhel_e4s:8.8::appstream
    cpe:/a:redhat:rhel_tus:8.8::appstream
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Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 8080020251029082621.b0a6ceea , < * (rpm)
    cpe:/a:redhat:rhel_e4s:8.8::appstream
    cpe:/a:redhat:rhel_tus:8.8::appstream
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Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.0.0-9.el9_7 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::appstream
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Red Hat Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions Unaffected: 0:1.0.0-7.el9_0.1 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:9.0::appstream
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Red Hat Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions Unaffected: 0:1.0.0-7.el9_2.1 , < * (rpm)
    cpe:/a:redhat:rhel_e4s:9.2::appstream
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Red Hat Red Hat Enterprise Linux 9.4 Extended Update Support Unaffected: 0:1.0.0-7.el9_4.1 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.4::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support Unaffected: 0:1.0.0-9.el9_6 , < * (rpm)
    cpe:/a:redhat:rhel_eus:9.6::appstream
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Date Public
2025-11-12 00:00
Show details on NVD website

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Workarounds

CNA · redhat
To mitigate this issue before a final fix can be applied, set "use_dns" parameter to false in the global section of the kdcproxy.conf file. This will disable the use of DNS to find Active Directory servers so it may break the service if DNS is needed.

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