CVE-2019-6465

Zone transfer controls for writable DLZ zones were not effective

Severity Score

5.3

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Controls for zone transfers may not be properly applied to Dynamically Loadable Zones (DLZs) if the zones are writable Versions affected: BIND 9.9.0 -> 9.10.8-P1, 9.11.0 -> 9.11.5-P2, 9.12.0 -> 9.12.3-P2, and versions 9.9.3-S1 -> 9.11.5-S3 of BIND 9 Supported Preview Edition. Versions 9.13.0 -> 9.13.6 of the 9.13 development branch are also affected. Versions prior to BIND 9.9.0 have not been evaluated for vulnerability to CVE-2019-6465.

Los controles para las transferencias de zona pueden no ser aplicados correctamente en Dynamically Loadable Zones (DLZs) si las zonas son grabables. Versiones afectadas: BIND 9.9.0 hasta 9.10.8-P1, 9.11.0 hasta 9.11.5-P2, 9.12.0 hasta 9.12.3-P2, y versiones 9.9.3-S1 hasta 9.11.5-S3 de BIND 9 Supported Preview Edition. Las versiones 9.13.0 hasta 9.13.6 de la rama de desarrollo 9.13 también están afectadas. Las versiones anteriores a BIND 9.9.0 no han sido evaluadas para vulnerabilidad de CVE-2019-6465.

It was found that the controls for zone transfer were not properly applied to Dynamically Loadable Zones (DLZs). An attacker acting as a DNS client could use this flaw to request and receive a zone transfer of a DLZ even when not permitted to do so by the "allow-transfer" ACL.

*Credits: N/A

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

High

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2019-01-16 CVE Reserved
2019-02-22 CVE Published
2024-09-16 CVE Updated
2024-09-17 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-284: Improper Access Control
CWE-732: Incorrect Permission Assignment for Critical Resource

CAPEC

References (4)

URL	Tag	Source
https://kb.isc.org/docs/cve-2019-6465	Third Party Advisory

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://access.redhat.com/errata/RHSA-2019:3552	2019-12-16
https://access.redhat.com/security/cve/CVE-2019-6465	2020-03-31
https://bugzilla.redhat.com/show_bug.cgi?id=1679304	2020-03-31

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				>= 9.9.0 <= 9.10.7 Search vendor "Isc" for product "Bind" and version " >= 9.9.0 <= 9.10.7"		-		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				>= 9.11.0 <= 9.11.4 Search vendor "Isc" for product "Bind" and version " >= 9.11.0 <= 9.11.4"		-		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				>= 9.12.0 <= 9.12.2 Search vendor "Isc" for product "Bind" and version " >= 9.12.0 <= 9.12.2"		-		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				>= 9.13.0 <= 9.13.6 Search vendor "Isc" for product "Bind" and version " >= 9.13.0 <= 9.13.6"		-		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.9.3 Search vendor "Isc" for product "Bind" and version "9.9.3"		s1		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.10.8 Search vendor "Isc" for product "Bind" and version "9.10.8"		-		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.10.8 Search vendor "Isc" for product "Bind" and version "9.10.8"		p1		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.11.5 Search vendor "Isc" for product "Bind" and version "9.11.5"		-		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.11.5 Search vendor "Isc" for product "Bind" and version "9.11.5"		p1		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.11.5 Search vendor "Isc" for product "Bind" and version "9.11.5"		p2		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.11.5 Search vendor "Isc" for product "Bind" and version "9.11.5"		s3, supported_preview		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.12.3 Search vendor "Isc" for product "Bind" and version "9.12.3"		-		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.12.3 Search vendor "Isc" for product "Bind" and version "9.12.3"		p1		Affected
Isc Search vendor "Isc"		Bind Search vendor "Isc" for product "Bind"				9.12.3 Search vendor "Isc" for product "Bind" and version "9.12.3"		p2		Affected
Redhat Search vendor "Redhat"		Enterprise Linux Search vendor "Redhat" for product "Enterprise Linux"				8.0 Search vendor "Redhat" for product "Enterprise Linux" and version "8.0"		-		Affected