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CVE
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CVE-2020-5216Date: (C)2020-01-23   (M)2023-12-22


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.

CVSS Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 5.8CVSS Score : 5.0
Exploit Score: 3.9Exploit Score: 10.0
Impact Score: 1.4Impact Score: 2.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: NETWORKAccess Vector: NETWORK
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: NONEAuthentication: NONE
User Interaction: NONEConfidentiality: NONE
Scope: CHANGEDIntegrity: PARTIAL
Confidentiality: NONEAvailability: NONE
Integrity: LOW 
Availability: NONE 
  
Reference:
https://github.com/twitter/secure_headers/commit/301695706f6a70517c2a90c6ef9b32178440a2d0
https://github.com/twitter/secure_headers/security/advisories/GHSA-w978-rmpf-qmwg

CWE    1
CWE-74

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