CVE-2020-5216

Limited header injection when using dynamic overrides with user input in RubyGems secure_headers

State
Published
Severity
4.4 Medium
Published
Jan 23, 2020
Updated
Aug 4, 2024
Reserved
Jan 2, 2020

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Description

In Secure Headers (RubyGem secure_headers), a directive injection vulnerability is present in versions before 3.9.0, 5.2.0, and 6.3.0. If user-supplied input was passed into append/override_content_security_policy_directives, a newline could be injected leading to limited header injection. Upon seeing a newline in the header, rails will silently create a new Content-Security-Policy header with the remaining value of the original string. It will continue to create new headers for each newline. This has been fixed in 6.3.0, 5.2.0, and 3.9.0.

Scores

CVSSScoreVectorSource
3.14.4 MediumCVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:NGitHub_M

Weaknesses

  • CWE-113 Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')

Affected Products

ProductVersions
secure_headersTwitter
  • < 3.9.0Affected
  • >= 5.0.0, < 5.2.0Affected
  • >= 6.0.0, < 6.3.0Affected

References

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