CVE-2025-59088— Python-kdcproxy: unauthenticated ssrf via realm‑controlled dns srv
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I. Basic Information for CVE-2025-59088
Vulnerability Information
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Vulnerability Title
Python-kdcproxy: unauthenticated ssrf via realm‑controlled dns srv
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
服务端请求伪造(SSRF)
Source: NVD (National Vulnerability Database)
Vulnerability Title
kdcproxy 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
kdcproxy是latchset开源的一个Python库 kdcproxy存在安全漏洞，该漏洞源于默认查询DNS SRV记录，可能导致服务器端请求伪造攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| latchset | kdcproxy | 0 ~ 1.1.0 | - | |
| Red Hat | Red Hat Enterprise Linux 10 | 0:1.0.0-19.el10_1 ~ * | cpe:/o:redhat:enterprise_linux:10.1 | |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | 0:1.0.0-19.el10_0 ~ * | cpe:/o:redhat:enterprise_linux_eus:10.0 | |
| Red Hat | Red Hat Enterprise Linux 7 Extended Lifecycle Support | 0:0.3.2-3.el7_9.3 ~ * | cpe:/o:redhat:rhel_els:7 | |
| Red Hat | Red Hat Enterprise Linux 8 | 8100020251103113748.143e9e98 ~ * | cpe:/a:redhat:enterprise_linux:8::appstream | |
| Red Hat | Red Hat Enterprise Linux 8 | 8100020251028161822.823393f5 ~ * | cpe:/a:redhat:enterprise_linux:8::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.2 Advanced Update Support | 8020020251106022345.792f4060 ~ * | cpe:/a:redhat:rhel_aus:8.2::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | 8040020251103205102.5b01ab7e ~ * | cpe:/a:redhat:rhel_aus:8.4::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On | 8040020251103205102.5b01ab7e ~ * | cpe:/a:redhat:rhel_aus:8.4::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support | 8060020251030180424.ada582f1 ~ * | cpe:/a:redhat:rhel_e4s:8.6::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.6 Telecommunications Update Service | 8060020251030180424.ada582f1 ~ * | cpe:/a:redhat:rhel_e4s:8.6::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.6 Update Services for SAP Solutions | 8060020251030180424.ada582f1 ~ * | cpe:/a:redhat:rhel_e4s:8.6::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.8 Telecommunications Update Service | 8080020251029082621.b0a6ceea ~ * | cpe:/a:redhat:rhel_e4s:8.8::appstream | |
| Red Hat | Red Hat Enterprise Linux 8.8 Update Services for SAP Solutions | 8080020251029082621.b0a6ceea ~ * | cpe:/a:redhat:rhel_e4s:8.8::appstream | |
| Red Hat | Red Hat Enterprise Linux 9 | 0:1.0.0-9.el9_7 ~ * | cpe:/a:redhat:enterprise_linux:9::appstream | |
| Red Hat | Red Hat Enterprise Linux 9.0 Update Services for SAP Solutions | 0:1.0.0-7.el9_0.1 ~ * | cpe:/a:redhat:rhel_e4s:9.0::appstream | |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | 0:1.0.0-7.el9_2.1 ~ * | cpe:/a:redhat:rhel_e4s:9.2::appstream | |
| Red Hat | Red Hat Enterprise Linux 9.4 Extended Update Support | 0:1.0.0-7.el9_4.1 ~ * | cpe:/a:redhat:rhel_eus:9.4::appstream | |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | 0:1.0.0-9.el9_6 ~ * | cpe:/a:redhat:rhel_eus:9.6::appstream |
II. Public POCs for CVE-2025-59088
| # | POC Description | Source Link | Shenlong Link |
|---|
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- 2393955 – (CVE-2025-59088) CVE-2025-59088 python-kdcproxy: Unauthenticated SSRF via Realm‑Controlled DNS SRVissue-trackingx_refsource_REDHAT
- https://nvd.nist.gov/vuln/detail/CVE-2025-59088
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V. Comments for CVE-2025-59088
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