CVE-2023-32077Network attack vector

Unauthenticated DNS data access via hardcoded key

Published Aug 24, 2023 · Updated Oct 2, 2024

Hard-coded credential use in Gravitl Netmaker before 0.17.1 and 0.18.0 through 0.18.5 allows remote attackers to read DNS API data. The authenticateDNSToken function accepts the literal default DNS key secretkey as a bearer token when no DNS_KEY or configured DNS key overrides it. Network access to the server API is sufficient; the published assessment limits impact to confidentiality and reports no integrity or availability loss.

CVSS severity7.5
High
EPSS probability3.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Hard-coded credential use in Gravitl Netmaker before 0.17.1 and 0.18.0 through 0.18.5 allows remote attackers to read DNS API data. The authenticateDNSToken function accepts the literal default DNS key secretkey as a bearer token when no DNS_KEY or configured DNS key overrides it. Network access to the server API is sufficient; the published assessment limits impact to confidentiality and reports no integrity or availability loss.

The record

CVE
CVE-2023-32077
Published
Aug 24, 2023
Updated
Oct 2, 2024
Vendor
Gravitl
Product
Netmaker
Classifications
CWE-321, CWE-798, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 24, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 2, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 0.17.1
  2. Affected versionversion=>= 0.18.0, < 0.18.6

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Gravitl · Netmakerversion=< 0.17.1; version=>= 0.18.0, < 0.18.6

Published CVSS scores

7.5GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-321Use of Hard-coded Cryptographic Key
CWE-798Use of Hard-coded Credentials
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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