ISC BIND up to 9.13.6 Zone Transfer permission assignment

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
5.2$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as critical, has been found in ISC BIND up to 9.10.8-P1/9.11.5-P2/9.11.5-S3/9.12.3-P2/9.13.6. Impacted is an unknown function of the component Zone Transfer Handler. The manipulation leads to permission assignment. This vulnerability is documented as CVE-2019-6465. The attack can be initiated remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as critical, has been found in ISC BIND up to 9.10.8-P1/9.11.5-P2/9.11.5-S3/9.12.3-P2/9.13.6 (Domain Name Software). This issue affects an unknown functionality of the component Zone Transfer Handler. The manipulation with an unknown input leads to a permission assignment vulnerability. Using CWE to declare the problem leads to CWE-732. The product specifies permissions for a security-critical resource in a way that allows that resource to be read or modified by unintended actors. Impacted is confidentiality. The summary by CVE is:

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.

The bug was discovered 02/21/2019. The weakness was released 10/09/2019 (Website). It is possible to read the advisory at kb.isc.org. The identification of this vulnerability is CVE-2019-6465 since 01/16/2019. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available.

The vulnerability was handled as a non-public zero-day exploit for at least 230 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 236577 (Alibaba Cloud Linux 3 : 0025: bind (ALINUX3-SA-2021:0025)), which helps to determine the existence of the flaw in a target environment. The commercial vulnerability scanner Qualys is able to test this issue with plugin 176691 (Debian Security Update for bind9 (DLA 1697-1)).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (236577). Entries connected to this vulnerability are available at VDB-143295, VDB-143294, VDB-143293 and VDB-143292. Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔍

CNA Base Score: 5.3
CNA Vector (Internet Systems Consortium (ISC)): 🔍

CVSSv2info

AVACAuCIA
💳💳💳💳💳💳
💳💳💳💳💳💳
💳💳💳💳💳💳
VectorComplexityAuthenticationConfidentialityIntegrityAvailability
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock
UnlockUnlockUnlockUnlockUnlockUnlock

VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Permission assignment
CWE: CWE-732 / CWE-275 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-DayUnlockUnlockUnlockUnlock
TodayUnlockUnlockUnlockUnlock

Nessus ID: 236577
Nessus Name: Alibaba Cloud Linux 3 : 0025: bind (ALINUX3-SA-2021:0025)

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

01/16/2019 🔍
02/21/2019 +36 days 🔍
10/09/2019 +230 days 🔍
10/10/2019 +1 days 🔍
05/21/2025 +2050 days 🔍

Sourcesinfo

Vendor: isc.org

Advisory: RHSA-2019:3552
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2019-6465 (🔍)
GCVE (CVE): GCVE-0-2019-6465
GCVE (VulDB): GCVE-100-143291
OSVDB: - ISC BIND Dynamically Loadable Zones information disclosure

See also: 🔍

Entryinfo

Created: 10/10/2019 10:58
Updated: 05/21/2025 16:56
Changes: 10/10/2019 10:58 (60), 09/29/2020 22:17 (1), 01/07/2024 13:00 (4), 01/07/2024 13:08 (10), 07/20/2024 07:37 (16), 05/21/2025 16:56 (4)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Discussion

No comments yet. Languages: en.

Please log in to comment.

◂ PreviousOverviewNext ▸

Might our Artificial Intelligence support you?

Check our Alexa App!