Arbitrary file read via unsafe path joining
Published Jul 11, 2022 · Updated Aug 3, 2024
Path traversal in olmax99 helm-flask-celery before 2022-05-25 allows remote attackers to read arbitrary server files via a crafted path. The route_frontend handler passes its attacker-controlled path through os.path.join; an absolute value discards the template directory before send_file returns the resulting file. An unauthenticated HTTP request is sufficient, and the demonstrated consequence is disclosure of files readable by the service, with no shown file modification.
Summary
What happened
Path traversal in olmax99 helm-flask-celery before 2022-05-25 allows remote attackers to read arbitrary server files via a crafted path. The route_frontend handler passes its attacker-controlled path through os.path.join; an absolute value discards the template directory before send_file returns the resulting file. An unauthenticated HTTP request is sufficient, and the demonstrated consequence is disclosure of files readable by the service, with no shown file modification.
The record
- CVE
- CVE-2022-31549
- Published
- Jul 11, 2022
- Updated
- Aug 3, 2024
- Vendor
- Unknown vendor
- Product
- Unknown product
- Classifications
- CWE-22, T1190, T1005
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Jul 11, 2022CVE publishedPublication date reported by the CVE source.
- Aug 3, 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
- Path traversal curl proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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