A vulnerability was found in Samba from version (including) 4.9 to versions before 4.9.6 and 4.10.2. During the creation of a new Samba AD DC, files are created in a private subdirectory of the install location. This directory is typically mode 0700, that is owner (root) only access. However in some upgraded installations it will have other permissions, such as 0755, because this was the default before Samba 4.8. Within this directory, files are created with mode 0666, which is world-writable, including a sample krb5.conf, and the list of DNS names and servicePrincipalName values to update.
References
Link | Resource |
---|---|
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-3870 | Issue Tracking Third Party Advisory |
https://bugzilla.samba.org/show_bug.cgi?id=13834 | Exploit Issue Tracking Patch Vendor Advisory |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/6354GALK73CZWQKFUG7AWB6EIEGFMF62/ | |
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JTJVFA3RZ6G2IZDTVKLHRMX6QBYA4GPA/ | |
https://support.f5.com/csp/article/K20804356 | Third Party Advisory |
https://www.samba.org/samba/security/CVE-2019-3870.html | Mitigation Patch Vendor Advisory |
https://www.synology.com/security/advisory/Synology_SA_19_15 | Third Party Advisory |
History
No history.
MITRE Information
Status: PUBLISHED
Assigner: redhat
Published: 2019-04-09T15:17:43
Updated: 2020-12-04T18:00:59
Reserved: 2019-01-03T00:00:00
Link: CVE-2019-3870
JSON object: View
NVD Information
Status : Modified
Published: 2019-04-09T16:29:01.867
Modified: 2023-11-07T03:10:15.880
Link: CVE-2019-3870
JSON object: View
Redhat Information
No data.
CWE