Executive Summary

Informations
Name CVE-2019-14861 First vendor Publication 2019-12-10
Vendor Cve Last vendor Modification 2020-10-09

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Overall CVSS Score 5.3
Base Score 5.3 Environmental Score 5.3
impact SubScore 3.6 Temporal Score 5.3
Exploitabality Sub Score 1.6
 
Attack Vector Network Attack Complexity High
Privileges Required Low User Interaction None
Scope Unchanged Confidentiality Impact None
Integrity Impact None Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:M/Au:S/C:N/I:N/A:P)
Cvss Base Score 3.5 Attack Range Network
Cvss Impact Score 2.9 Attack Complexity Medium
Cvss Expoit Score 6.8 Authentication Requires single instance
Calculate full CVSS 2.0 Vectors scores

Detail

All Samba versions 4.x.x before 4.9.17, 4.10.x before 4.10.11 and 4.11.x before 4.11.3 have an issue, where the (poorly named) dnsserver RPC pipe provides administrative facilities to modify DNS records and zones. Samba, when acting as an AD DC, stores DNS records in LDAP. In AD, the default permissions on the DNS partition allow creation of new records by authenticated users. This is used for example to allow machines to self-register in DNS. If a DNS record was created that case-insensitively matched the name of the zone, the ldb_qsort() and dns_name_compare() routines could be confused into reading memory prior to the list of DNS entries when responding to DnssrvEnumRecords() or DnssrvEnumRecords2() and so following invalid memory as a pointer.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-14861

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-276 Incorrect Default Permissions

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 458
Os 5
Os 2
Os 1

Sources (Detail)

Source Url
CONFIRM https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-14861
https://security.netapp.com/advisory/ntap-20191210-0002/
https://www.samba.org/samba/security/CVE-2019-14861.html
https://www.synology.com/security/advisory/Synology_SA_19_40
FEDORA https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedorapr...
GENTOO https://security.gentoo.org/glsa/202003-52
SUSE http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00038.html
UBUNTU https://usn.ubuntu.com/4217-1/
https://usn.ubuntu.com/4217-2/

Alert History

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0
1
Date Informations
2020-10-09 17:22:49
  • Multiple Updates
2020-05-23 02:25:03
  • First insertion