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.
6.3	$0-$5k	0.00

A vulnerability, which was classified as critical, has been found in ISC BIND up to 9.11.4/9.12.2 (Domain Name Software). Affected by this issue is an unknown part of the component DDNS. The manipulation with an unknown input leads to a 7pk security vulnerability. Using CWE to declare the problem leads to CWE-254. Impacted is confidentiality, integrity, and availability. CVE summarizes:

To provide fine-grained controls over the ability to use Dynamic DNS (DDNS) to update records in a zone, BIND 9 provides a feature called update-policy. Various rules can be configured to limit the types of updates that can be performed by a client, depending on the key used when sending the update request. Unfortunately, some rule types were not initially documented, and when documentation for them was added to the Administrator Reference Manual (ARM) in change #3112, the language that was added to the ARM at that time incorrectly described the behavior of two rule types, krb5-subdomain and ms-subdomain. This incorrect documentation could mislead operators into believing that policies they had configured were more restrictive than they actually were. This affects BIND versions prior to BIND 9.11.5 and BIND 9.12.3.

The bug was discovered 09/19/2018. The weakness was presented 01/16/2019 (Website). The advisory is available at kb.isc.org. This vulnerability is handled as CVE-2018-5741 since 01/17/2018. The exploitation is known to be easy. The attack may be launched remotely. A simple authentication is necessary for exploitation. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1211 by the MITRE ATT&CK project.

The vulnerability was handled as a non-public zero-day exploit for at least 25 days. During that time the estimated underground price was around $5k-$25k. The vulnerability scanner Nessus provides a plugin with the ID 118101 (Fedora 27 : 32:bind (2018-54d84b0b0c)), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Fedora Local Security Checks and running in the context l. The commercial vulnerability scanner Qualys is able to test this issue with plugin 351551 (Amazon Linux Security Advisory for bind: ALAS2-2019-1187).

Upgrading to version 9.11.5 or 9.12.3 eliminates this vulnerability. A possible mitigation has been published even before and not after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (118101). See 129816 for similar entry.

Productinfo

Type

• Domain Name Software

Vendor

• ISC

Name

• BIND

Version

• 9.11.0
• 9.11.1
• 9.11.2
• 9.11.3
• 9.11.4
• 9.12.0
• 9.12.1
• 9.12.2

License

• open-source

CPE 2.3info

• 🔍
• 🔍
• 🔍

CPE 2.2info

• 🔍
• 🔍
• 🔍

CVSSv4info

VulDB CVSS-B Score: 🔍
VulDB CVSS-BT Score: 🔍
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.4
VulDB Meta Temp Score: 6.3

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.5
NVD Vector: 🔍

CNA Base Score: 6.5
CNA Vector (Internet Systems Consortium (ISC)): 🔍

CVSSv2info

AV	AC	Au	C	I	A
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳
💳	💳	💳	💳	💳	💳

Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock
unlock	unlock	unlock	unlock	unlock	unlock

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

NVD Base Score: 🔍

Exploitinginfo

Class: 7pk security
CWE: CWE-254
ATT&CK: T1211

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	unlock	unlock	unlock	unlock
Today	unlock	unlock	unlock	unlock

Nessus ID: 118101
Nessus Name: Fedora 27 : 32:bind (2018-54d84b0b0c)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: BIND 9.11.5/9.12.3

Timelineinfo

01/17/2018 🔍
09/19/2018 +245 days 🔍
09/19/2018 +0 days 🔍
10/14/2018 +25 days 🔍
10/15/2018 +1 days 🔍
01/16/2019 +93 days 🔍
01/16/2019 +0 days 🔍
01/17/2019 +1 days 🔍
07/01/2023 +1626 days 🔍

Sourcesinfo

Vendor: isc.org

Advisory: FEDORA-2018-54d84b0b0c
Status: Not defined
Confirmation: 🔍

CVE: CVE-2018-5741 (🔍)
SecurityTracker: 1041674
SecurityFocus: 105379 - ISC BIND CVE-2018-5741 Security Bypass Vulnerability

See also: 🔍

Entryinfo

Created: 01/17/2019 11:48
Updated: 07/01/2023 13:05
Changes: 01/17/2019 11:48 (75), 05/02/2020 09:39 (4), 07/01/2023 12:50 (5), 07/01/2023 12:57 (11), 07/01/2023 13:05 (1)
Complete: 🔍

Discussion

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