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

Vulnerability from cvelistv5 – Published: 2025-11-12 16:35 – Updated: 2025-11-20 08:56
VLAI?
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.
Severity ?
8.6 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Assigner
References
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/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
Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:1.0.0-19.el10_1 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:10.1
 Create a notification for this product.
    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
 Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 8100020251103113748.143e9e98 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::appstream
 Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8 Unaffected: 8100020251028161822.823393f5 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::appstream
 Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.2 Advanced Update Support Unaffected: 8020020251106022345.792f4060 , < * (rpm)
    cpe:/a:redhat:rhel_aus:8.2::appstream
 Create a notification for this product.
    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
 Create a notification for this product.
    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
 Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support Unaffected: 8060020251030180424.ada582f1 , < * (rpm)
    cpe:/a:redhat:rhel_tus:8.6::appstream
    cpe:/a:redhat:rhel_e4s:8.6::appstream
    cpe:/a:redhat:rhel_aus:8.6::appstream
 Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Telecommunications Update Service Unaffected: 8060020251030180424.ada582f1 , < * (rpm)
    cpe:/a:redhat:rhel_tus:8.6::appstream
    cpe:/a:redhat:rhel_e4s:8.6::appstream
    cpe:/a:redhat:rhel_aus:8.6::appstream
 Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions Unaffected: 8060020251030180424.ada582f1 , < * (rpm)
    cpe:/a:redhat:rhel_tus:8.6::appstream
    cpe:/a:redhat:rhel_e4s:8.6::appstream
    cpe:/a:redhat:rhel_aus:8.6::appstream
 Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Telecommunications Update Service Unaffected: 8080020251029082621.b0a6ceea , < * (rpm)
    cpe:/a:redhat:rhel_tus:8.8::appstream
    cpe:/a:redhat:rhel_e4s:8.8::appstream
 Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions Unaffected: 8080020251029082621.b0a6ceea , < * (rpm)
    cpe:/a:redhat:rhel_tus:8.8::appstream
    cpe:/a:redhat:rhel_e4s:8.8::appstream
 Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.0.0-9.el9_7 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::appstream
 Create a notification for this product.
    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
 Create a notification for this product.
    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
 Create a notification for this product.
    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
 Create a notification for this product.
    Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
 Create a notification for this product.
Credits
Red Hat would like to thank Arad Inbar for reporting this issue.
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}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.