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cve.new
GHSA-w3w9-vrf5-8mx8medium5.3

ReactPHP's HTTP server parses encoded cookie names so malicious `__Host-` and `__Secure-` cookies can be sent

Check your stack

The advisory, in context

Impact

In ReactPHP's HTTP server component versions below v1.7.0, when ReactPHP is processing incoming HTTP cookie values, the cookie names are url-decoded. This may lead to cookies with prefixes like __Host- and __Secure- confused with cookies that decode to such prefix, thus leading to an attacker being able to forge cookie which is supposed to be secure. See also CVE-2020-7070 and CVE-2020-8184 for more information.

Patches

Workarounds

Infrastructure or DevOps can place a reverse proxy in front of the ReactPHP HTTP server to filter out any unexpected Cookie request headers.

References

Credits

  • Thanks to Marco Squarcina (TU Wien) for reporting this and working with us to coordinate this security advisory

For more information

If you have any questions or comments about this advisory:

Affected packages

Start with the recorded fix for your release branch. Check your installed version and test compatibility before upgrading. Fixing this advisory does not rule out other vulnerabilities in the release.

react/http Packagist
Ecosystem versions

From 0.7.0 before 1.7.0

Fixed in 1.7.0

20 explicitly affected versions

v0.7.0, v0.7.1, v0.7.2, v0.7.3, v0.7.4, v0.8.0, v0.8.1, v0.8.2, v0.8.3, v0.8.4, v0.8.5, v0.8.6, v0.8.7, v1.0.0, v1.1.0, v1.2.0, v1.3.0, v1.4.0, v1.5.0, v1.6.0

View affected-version evidence
{
  "ranges": [
    {
      "events": [
        {
          "introduced": "0.7.0"
        },
        {
          "fixed": "1.7.0"
        }
      ],
      "type": "ECOSYSTEM"
    }
  ],
  "versions": [
    "v0.7.0",
    "v0.7.1",
    "v0.7.2",
    "v0.7.3",
    "v0.7.4",
    "v0.8.0",
    "v0.8.1",
    "v0.8.2",
    "v0.8.3",
    "v0.8.4",
    "v0.8.5",
    "v0.8.6",
    "v0.8.7",
    "v1.0.0",
    "v1.1.0",
    "v1.2.0",
    "v1.3.0",
    "v1.4.0",
    "v1.5.0",
    "v1.6.0"
  ]
}

References