Arbitrary file write via target path traversal
Published Jun 19, 2023 · Updated Dec 11, 2024
Path traversal in elFinder before 2.1.62 allows remote authenticated users with write access to place files outside the configured root. The LocalVolumeDriver _joinPath method accepts dot-dot segments in the base64-encoded target path and joins them without rejecting traversal in the directory portion. An account permitted to write through the PHP connector can place arbitrary files within the web application's filesystem permissions, including its application root.
Summary
What happened
Path traversal in elFinder before 2.1.62 allows remote authenticated users with write access to place files outside the configured root. The LocalVolumeDriver _joinPath method accepts dot-dot segments in the base64-encoded target path and joins them without rejecting traversal in the directory portion. An account permitted to write through the PHP connector can place arbitrary files within the web application's filesystem permissions, including its application root.
The record
- CVE
- CVE-2023-35840
- Published
- Jun 19, 2023
- Updated
- Dec 11, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-22, T1105
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jun 19, 2023CVE publishedPublication date reported by the CVE source.
- Dec 11, 2024Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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What is affected?
Affected products and versions are unavailable in this record.
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
- Base64-encoded target traversal proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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