coreDNS TLD Traffic communication channel to intended endpoints

CVSS Meta Temp Score
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Current Exploit Price (≈)
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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.
5.8$0-$5k0.00

Summaryinfo

A vulnerability has been found in coreDNS and classified as critical. This issue affects some unknown processing of the component TLD Traffic Handler. The manipulation leads to communication channel to intended endpoints. This vulnerability is documented as CVE-2022-2837. There is not any exploit available.

Detailsinfo

A vulnerability was found in coreDNS (the affected version unknown). It has been rated as critical. This issue affects an unknown part of the component TLD Traffic Handler. The manipulation with an unknown input leads to a communication channel to intended endpoints vulnerability. Using CWE to declare the problem leads to CWE-923. The product establishes a communication channel to (or from) an endpoint for privileged or protected operations, but it does not properly ensure that it is communicating with the correct endpoint. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

A flaw was found in coreDNS. This flaw allows a malicious user to redirect traffic intended for external top-level domains (TLD) to a pod they control by creating projects and namespaces that match the TLD.

The weakness was released 03/03/2023. The advisory is shared at bugzilla.redhat.com. The identification of this vulnerability is CVE-2022-2837 since 08/16/2022. Neither technical details nor an exploit are publicly available.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2023-1027). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Productinfo

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

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

VulDB Base Score: 5.5
VulDB Temp Score: 5.5
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 6.1
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Communication channel to intended endpoints
CWE: CWE-923
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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Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔍

Timelineinfo

08/16/2022 🔍
03/03/2023 +199 days 🔍
03/03/2023 +0 days 🔍
07/06/2025 +856 days 🔍

Sourcesinfo

Advisory: bugzilla.redhat.com
Status: Not defined

CVE: CVE-2022-2837 (🔍)
GCVE (CVE): GCVE-0-2022-2837
GCVE (VulDB): GCVE-100-222281
EUVD: 🔍

Entryinfo

Created: 03/03/2023 17:45
Updated: 07/06/2025 16:57
Changes: 03/03/2023 17:45 (35), 03/31/2023 09:08 (11), 07/06/2025 16:57 (15)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

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