Vulnerabilities affecting this package (0)
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This package is not known to be affected by vulnerabilities.
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Vulnerabilities fixed by this package (1)
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VCID-64bd-n2s2-9qcj
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Symfony storing cookie headers in HttpCache
Description
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The Symfony HTTP cache system acts as a reverse proxy: it caches HTTP responses (including headers) and returns them to clients.
In a recent `AbstractSessionListener` change, the response might now contain a `Set-Cookie` header. If the Symfony HTTP cache system is enabled, this header might be stored and returned to some other clients. An attacker can use this vulnerability to retrieve the victim's session.
Resolution
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The `HttpStore` constructor now takes a parameter containing a list of private headers that are removed from the HTTP response headers.
The default value for this parameter is `Set-Cookie`, but it can be overridden or extended by the application.
The patch for this issue is available [here](https://github.com/symfony/symfony/commit/d2f6322af9444ac5cd1ef3ac6f280dbef7f9d1fb) for branch 4.4.
Credits
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We would like to thank Soner Sayakci for reporting the issue and Nicolas Grekas for fixing it.
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CVE-2022-24894
GHSA-h7vf-5wrv-9fhv
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