CVEvulnerability

CVE-2020-5216

5.8 MEDIUM Published 2020-01-23 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2020-01-23
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.4 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:L/I:L/A:N
CVSS 3.1 ([email protected])
5.8 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N
CVSS 2.0 ([email protected])
5.0 MEDIUM — AV:N/AC:L/Au:N/C:N/I:P/A:N
Weaknesses
CWE-113, CWE-74

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.

Affected configurations

• twitter secure headers (< 3.9.0) • twitter secure headers (>= 5.0.0 < 5.2.0) • twitter secure headers (>= 6.0.0 < 6.3.0)

Related

Weakness · CWE (2)

  • CWE-113 Improper Neutralization of CRLF Sequences in HTTP Headers weakness
  • CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component weakness

References