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CVE-2020-25719

Date: February 18, 2022

A flaw was found in the way Samba, as an Active Directory Domain Controller, implemented Kerberos name-based authentication. The Samba AD DC, could become confused about the user a ticket represents if it did not strictly require a Kerberos PAC and always use the SIDs found within. The result could include total domain compromise.

Severity Score

Related Resources (9)

https://bugzilla.redhat.com/show_bug.cgi?id=2019732
https://security-tracker.debian.org/tracker/CVE-2020-25719
https://www.samba.org/samba/security/CVE-2020-25719.html
https://security.alpinelinux.org/vuln/CVE-2020-25719
https://people.canonical.com/~ubuntu-security/cve/CVE-2020-25719
https://nvd.nist.gov/vuln/detail/CVE-2020-25719
https://access.redhat.com/security/cve/CVE-2020-25719
https://security.gentoo.org/glsa/202309-06
https://www.mend.io/vulnerability-database/CVE-2020-25719

Severity Score

Weakness Type (CWE)

Authentication Issues

CWE-287

Race Conditions

CWE-362

CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): HIGH
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): SINGLE
Confidentiality (C): COMPLETE
Integrity (I): COMPLETE
Availability (A): COMPLETE
Additional information:

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