Improper Authentication
CVE-2020-25719
Summary
A flaw was found in the way Samba 4.0.x prior to 4.13.14, 4.14.x prior to 4.14.10, 4.15.x prior to 4.15.2, 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.
- LOW
- NETWORK
- HIGH
- UNCHANGED
- NONE
- HIGH
- HIGH
- HIGH
CWE-287 - Improper Authentication
Improper (or broken) authentication attacks are widespread, and have accounted for many of the worst data breaches in recent years. Improper authentication attacks are a class of vulnerabilities where an attacker impersonates a legitimate user by exploiting weaknesses in either session management or credential management to gain access to the user’s account. This can result in disclosure of sensitive information, and can lead to system compromise, theft, identity theft, and fraud.
Advisory Timeline
- Published