ISC BIND 9.9.12/9.10.7/9.11.3/9.12.1-P2 Recursion information disclosure

CVSS Meta Temp Score
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CTI Interest Score
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6.0$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in ISC BIND 9.9.12/9.10.7/9.11.3/9.12.1-P2. Affected by this vulnerability is an unknown functionality of the component Recursion. Executing a manipulation can lead to information disclosure. This vulnerability appears as CVE-2018-5738. The attack may be performed from remote. There is no available exploit. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic was found in ISC BIND 9.9.12/9.10.7/9.11.3/9.12.1-P2 (Domain Name Software). This vulnerability affects some unknown functionality of the component Recursion. The manipulation with an unknown input leads to a information disclosure vulnerability. The CWE definition for the vulnerability is CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. As an impact it is known to affect confidentiality.

The bug was discovered 06/12/2018. The weakness was presented 06/12/2018 by Tony Finch as AA-01616 as confirmed security advisory (Website). The advisory is shared for download at kb.isc.org. This vulnerability was named CVE-2018-5738 since 01/17/2018. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1592. The advisory points out:

Change #4777 (introduced in October 2017) introduced an unforeseen issue in releases which were issued after that date, affecting which clients are permitted to make recursive queries to a BIND nameserver.

The vulnerability scanner Nessus provides a plugin with the ID 120758 (Fedora 28 : 32:bind (2018-bfec61fb2f)), 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 277413 (Fedora Security Update for bind.P1 (FEDORA-2018-5417ca3713)).

Upgrading to version 9.9.13, 9.10.8, 9.11.4 or 9.12.2 eliminates this vulnerability. It is possible to mitigate the problem by applying the configuration setting allow-query {localnets; localhost;};. The best possible mitigation is suggested to be upgrading to the latest version. A possible mitigation has been published immediately after the disclosure of the vulnerability.

The vulnerability is also documented in the databases at Tenable (120758), SecurityFocus (BID 105055†) and SecurityTracker (ID 1041115†). See VDB-122783 for similar entry. Once again VulDB remains the best source for vulnerability data.

Productinfo

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CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.9
VulDB Meta Temp Score: 5.8

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

Vendor Base Score (ISC): 5.3
Vendor Vector (ISC): 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

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

CVSSv2info

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

NVD Base Score: 🔍

Exploitinginfo

Class: Information disclosure
CWE: CWE-200 / CWE-284 / CWE-266
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 120758
Nessus Name: Fedora 28 : 32:bind (2018-bfec61fb2f)
Nessus File: 🔍
Nessus Risk: 🔍
Nessus Family: 🔍
Nessus Context: 🔍

Qualys ID: 🔍
Qualys Name: 🔍

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

Reaction Time: 🔍
0-Day Time: 🔍
Exposure Time: 🔍

Upgrade: BIND 9.9.13/9.10.8/9.11.4/9.12.2
Config: allow-query {localnets; localhost;};

Timelineinfo

01/17/2018 🔍
06/12/2018 +146 days 🔍
06/12/2018 +0 days 🔍
06/12/2018 +0 days 🔍
06/13/2018 +1 days 🔍
06/14/2018 +1 days 🔍
08/08/2018 +55 days 🔍
01/03/2019 +148 days 🔍
01/16/2019 +13 days 🔍
03/27/2023 +1531 days 🔍

Sourcesinfo

Vendor: isc.org

Advisory: AA-01616
Researcher: Tony Finch
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2018-5738 (🔍)
GCVE (CVE): GCVE-0-2018-5738
GCVE (VulDB): GCVE-100-119548
SecurityFocus: 105055 - ISC BIND CVE-2018-5740 Remote Denial of Service Vulnerability
SecurityTracker: 1041115

See also: 🔍

Entryinfo

Created: 06/14/2018 21:50
Updated: 03/27/2023 13:05
Changes: 06/14/2018 21:50 (86), 02/19/2020 13:50 (9), 03/27/2023 12:58 (4), 03/27/2023 13:05 (11)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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