CVE-2024-24752
Last modified
CVE-2024-24752 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Bref enable serverless PHP on AWS Lambda. When Bref is used with the Event-Driven Function runtime and the handler is a `RequestHandlerInterface`, then the Lambda event is converted to a PSR7 object. EPSS estimates a 0.75% chance of exploitation in the next 30 days.
Description
Bref enable serverless PHP on AWS Lambda. When Bref is used with the Event-Driven Function runtime and the handler is a `RequestHandlerInterface`, then the Lambda event is converted to a PSR7 object. During the conversion process, if the request is a MultiPart, each part is parsed and for each which contains a file, it is extracted and saved in `/tmp` with a random filename starting with `bref_upload_`. The flow mimics what plain PHP does but it does not delete the temporary files when the request has been processed. An attacker could fill the Lambda instance disk by performing multiple MultiPart requests containing files. This vulnerability is patched in 2.1.13.
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mnapoli | Bref | < 2.1.13 |
References
- https://github.com/brefphp/bref/security/advisories/GHSA-x4hh-frx8-98r5Exploit, Vendor Advisory
- https://github.com/brefphp/bref/security/advisories/GHSA-x4hh-frx8-98r5Exploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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