File disclosure via unchecked request path
Published Dec 17, 2021 · Updated Sep 16, 2024
Path traversal in Guro Beridze http-server-node 1.0.2 and earlier allows remote attackers to read files outside the served directory. The HTTP request handler passes the raw request URL to fileSystem.createReadStream, which joins it to the configured entry directory without checking that the resolved path remains inside that directory. Exploitation requires a running server and a dot-dot path preserved by the client; the consequence is unauthenticated disclosure of files readable by the server process.
Summary
What happened
Path traversal in Guro Beridze http-server-node 1.0.2 and earlier allows remote attackers to read files outside the served directory. The HTTP request handler passes the raw request URL to fileSystem.createReadStream, which joins it to the configured entry directory without checking that the resolved path remains inside that directory. Exploitation requires a running server and a dot-dot path preserved by the client; the consequence is unauthenticated disclosure of files readable by the server process.
The record
- CVE
- CVE-2021-23797
- Published
- Dec 17, 2021
- Updated
- Sep 16, 2024
- Vendor
- Guro Beridze
- Product
- http-server-node
- Classifications
- CWE-22, T1005
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Dec 17, 2021CVE publishedPublication date reported by the CVE source.
- Sep 16, 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?
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- Affected versionversion=0 <unspecified
What conditions does exploitation require?
What is affected?
Published CVSS scores
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Attacks
What attackers are doing with it
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Weakness, pattern, technique
Public exploit references
- Snyk curl path-traversal proof of conceptproof of concept · unverified
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Technologies
Your stack
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Your stack
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