Host file creation via unresolved symlink targets
Published Feb 8, 2023 · Updated Mar 10, 2025
Improper link resolution in Pterodactyl Wings before 1.7.3 and 1.11.0 through 1.11.2 allows remote authenticated users to create host files. SafePath validated an existing parent of a requested path when recursive symlink evaluation reached a nonexistent target, allowing Writefile to follow the unresolved link outside the server root. Exploitation requires control of an allocated server and can alter resource allocations, enable privileged containers, or install an SSH key for host shell access.
Summary
What happened
Improper link resolution in Pterodactyl Wings before 1.7.3 and 1.11.0 through 1.11.2 allows remote authenticated users to create host files. SafePath validated an existing parent of a requested path when recursive symlink evaluation reached a nonexistent target, allowing Writefile to follow the unresolved link outside the server root. Exploitation requires control of an allocated server and can alter resource allocations, enable privileged containers, or install an SSH key for host shell access.
The record
- CVE
- CVE-2023-25152
- Published
- Feb 8, 2023
- Updated
- Mar 10, 2025
- Vendor
- Pterodactyl
- Product
- Wings
- Classifications
- CWE-59, T1068
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Feb 8, 2023CVE publishedPublication date reported by the CVE source.
- Mar 10, 2025Record 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=>= 1.11.0, < 1.11.3
- Affected versionversion=< 1.7.3
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
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Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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