VulnerabilityModified
CVE-2020-25719
A flaw was found in the way Samba, as an Active Directory Domain Controller, implemented Kerberos name-based authentication.
HIGH 7.2EPSS 1.69%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.69%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.1
- 7.2 HIGHCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 1.69% probability · 76th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-287, CWE-362
- Affected
- samba/samba · debian/debian linux · fedoraproject/fedora · canonical/ubuntu linux · redhat/enterprise linux · redhat/enterprise linux desktop · redhat/enterprise linux eus · redhat/enterprise linux for ibm z systems · redhat/enterprise linux for ibm z systems eus · redhat/enterprise linux for power big endian · redhat/enterprise linux for power little endian · redhat/enterprise linux for power little endian eus · redhat/enterprise linux for scientific computing · redhat/enterprise linux server aus · redhat/enterprise linux server tus · redhat/enterprise linux server update services for sap solutions · redhat/enterprise linux workstation
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2019732Issue Tracking, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202309-06
- https://www.samba.org/samba/security/CVE-2020-25719.htmlMitigation, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2019732Issue Tracking, Patch, Third Party Advisory
- https://security.gentoo.org/glsa/202309-06
- https://www.samba.org/samba/security/CVE-2020-25719.htmlMitigation, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.