Authenticated protected-data access via unchecked app permissions
Published Dec 29, 2023 · Updated Aug 2, 2024
Improper authorization in Misskey before 2023.12.1 allows remote authenticated users to read or alter protected data through third-party applications. The API authorization service trusted endpoint metadata and allowed endpoints or WebSocket channels marked kind or secure to bypass the application's granted permissions. Exploitation requires an authenticated user's application token and user interaction to authorize that application; administrator tokens can expose object-storage and SMTP secrets, while ordinary users can create invitation codes or disclose non-public user information.
Summary
What happened
Improper authorization in Misskey before 2023.12.1 allows remote authenticated users to read or alter protected data through third-party applications. The API authorization service trusted endpoint metadata and allowed endpoints or WebSocket channels marked kind or secure to bypass the application's granted permissions. Exploitation requires an authenticated user's application token and user interaction to authorize that application; administrator tokens can expose object-storage and SMTP secrets, while ordinary users can create invitation codes or disclose non-public user information.
The record
- CVE
- CVE-2023-52139
- Published
- Dec 29, 2023
- Updated
- Aug 2, 2024
- Vendor
- Misskey Project
- Product
- Misskey
- Classifications
- CWE-285, CAPEC-1, T1190
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Dec 29, 2023CVE publishedPublication date reported by the CVE source.
- Aug 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.
- Affected versionversion=< 2023.12.1
What conditions does exploitation require?
What is affected?
Published CVSS scores
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.
Weakness, pattern, technique
Public exploit references
- misskey-attacker exploit codefunctional · demonstrated
Labels summarize the accepted research assessment. They do not indicate a test against your environment.
Reported exploitation
- Public exploit publicationreported exploitation
Technologies
Your stack
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Your stack
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