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CVE-2025-3576— Krb5: kerberos rc4-hmac-md5 checksum vulnerability enabling message spoofing via md5 collisions

CVSS 5.9 · Medium EPSS 0.23% · P46
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I. Basic Information for CVE-2025-3576

Vulnerability Information
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Vulnerability Title
Krb5: kerberos rc4-hmac-md5 checksum vulnerability enabling message spoofing via md5 collisions
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the MIT Kerberos implementation allows GSSAPI-protected messages using RC4-HMAC-MD5 to be spoofed due to weaknesses in the MD5 checksum design. If RC4 is preferred over stronger encryption types, an attacker could exploit MD5 collisions to forge message integrity codes. This may lead to unauthorized message tampering.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
可逆的单向哈希
Source: NVD (National Vulnerability Database)
Vulnerability Title
MIT Kerberos 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MIT Kerberos是美国麻省理工学院（MIT）的一个用于在网络集群中进行身份验证的软件。Kerberos 同时作为一种网络认证协议，其设计目标是通过密钥系统为客户机 / 服务器应用程序提供强大的认证服务。 MIT Kerberos存在安全漏洞，该漏洞源于MD5校验和设计缺陷，可能导致消息伪造攻击。
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

VendorProductAffected VersionsCPESubscribe
Red HatRed Hat Enterprise Linux 10 0:1.21.3-8.el10_0 ~ * cpe:/o:redhat:enterprise_linux:10.0
Red HatRed Hat Enterprise Linux 8 0:1.18.2-32.el8_10 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red HatRed Hat Enterprise Linux 8.2 Advanced Update Support 0:1.17-19.el8_2.3 ~ * cpe:/o:redhat:rhel_aus:8.2::baseos
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support 0:1.18.2-9.el8_4.3 ~ * cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-On 0:1.18.2-9.el8_4.3 ~ * cpe:/o:redhat:rhel_eus_long_life:8.4::baseos
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update Support 0:1.18.2-16.el8_6.4 ~ * cpe:/o:redhat:rhel_tus:8.6::baseos
Red HatRed Hat Enterprise Linux 8.6 Telecommunications Update Service 0:1.18.2-16.el8_6.4 ~ * cpe:/o:redhat:rhel_tus:8.6::baseos
Red HatRed Hat Enterprise Linux 8.6 Update Services for SAP Solutions 0:1.18.2-16.el8_6.4 ~ * cpe:/o:redhat:rhel_tus:8.6::baseos
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update Service 0:1.18.2-26.el8_8.5 ~ * cpe:/o:redhat:rhel_e4s:8.8::baseos
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP Solutions 0:1.18.2-26.el8_8.5 ~ * cpe:/o:redhat:rhel_e4s:8.8::baseos
Red HatRed Hat Enterprise Linux 9 0:1.21.1-8.el9_6 ~ * cpe:/o:redhat:enterprise_linux:9::baseos
Red HatRed Hat Enterprise Linux 9 0:1.21.1-8.el9_6 ~ * cpe:/o:redhat:enterprise_linux:9::baseos
Red HatRed Hat Enterprise Linux 9.0 Update Services for SAP Solutions 0:1.19.1-16.el9_0.4 ~ * cpe:/o:redhat:rhel_e4s:9.0::baseos
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP Solutions 0:1.20.1-9.el9_2.3 ~ * cpe:/a:redhat:rhel_e4s:9.2::appstream
Red HatRed Hat Enterprise Linux 9.4 Extended Update Support 0:1.21.1-2.el9_4.2 ~ * cpe:/o:redhat:rhel_eus:9.4::baseos
Red HatRed Hat Discovery 2 sha256:c499a099e03c7488ffe50529a34723ade191a89fcfc59d1f0edd01db2b579ca3 ~ * cpe:/a:redhat:discovery:2::el9
Red HatRed Hat Enterprise Linux 6-cpe:/o:redhat:enterprise_linux:6
Red HatRed Hat Enterprise Linux 7-cpe:/o:redhat:enterprise_linux:7
Red HatRed Hat OpenShift Container Platform 4-cpe:/a:redhat:openshift:4

II. Public POCs for CVE-2025-3576

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III. Intelligence Information for CVE-2025-3576

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IV. Related Vulnerabilities

Same weakness: CWE-328

V. Comments for CVE-2025-3576

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