Privilege escalation: all users can access Admin-level API keys
CVE-2021-39192

6.5MEDIUM

Key Information:

Vendor

Tryghost

Status
Ghost
Vendor
CVE Published:
3 September 2021

What is CVE-2021-39192?

Ghost is a Node.js content management system. An error in the implementation of the limits service between versions 4.0.0 and 4.9.4 allows all authenticated users (including contributors) to view admin-level API keys via the integrations API endpoint, leading to a privilege escalation vulnerability. This issue is patched in Ghost version 4.10.0. As a workaround, disable all non-Administrator accounts to prevent API access. It is highly recommended to regenerate all API keys after patching or applying the workaround.

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Affected Version(s)

Ghost >= 4.0.0, < 4.10.0

References

https://github.com/TryGhost/Ghost/security/advisories/GHS...
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https://github.com/TryGhost/Ghost/releases/tag/v4.10.0
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CVSS V3.1

Score:
6.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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