Arbitrary file read via unrestricted log path
Published Jan 20, 2021 · Updated Aug 4, 2024
Path traversal in FHEM 6.0 allows remote authenticated users to read arbitrary files through the FileLog_logWrapper web endpoint. The handler accepts an absolute pathname in the file query parameter and returns the referenced file without limiting reads to intended log files. An active FHEM session is required, and disclosure is limited to files readable by the account running the FHEM service.
Summary
What happened
Path traversal in FHEM 6.0 allows remote authenticated users to read arbitrary files through the FileLog_logWrapper web endpoint. The handler accepts an absolute pathname in the file query parameter and returns the referenced file without limiting reads to intended log files. An active FHEM session is required, and disclosure is limited to files readable by the account running the FHEM service.
The record
- CVE
- CVE-2020-19360
- Published
- Jan 20, 2021
- Updated
- Aug 4, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-22, T1005
- Attack vector
- network
- Privileges
- authenticated
Timeline
How it unfolded
- Jan 20, 2021CVE publishedPublication date reported by the CVE source.
- Aug 4, 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
- FHEM 6.0 FileLog_logWrapper local file inclusion proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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