GHSA-7fj7-39wj-c64f

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Source
https://github.com/advisories/GHSA-7fj7-39wj-c64f
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/06/GHSA-7fj7-39wj-c64f/GHSA-7fj7-39wj-c64f.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-7fj7-39wj-c64f
Aliases
Published
2023-06-07T16:01:53Z
Modified
2023-11-08T04:09:34.597275Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
Summary
SwiftNIO vulnerable to Improper Neutralization of CRLF Sequences in HTTP Headers ('HTTP Response Splitting')
Details

NIOHTTP1 and projects using it for generating HTTP responses, including SwiftNIO, can be subject to a HTTP Response Injection attack. This occurs when a HTTP/1.1 server accepts user generated input from an incoming request and reflects it into a HTTP/1.1 response header in some form. A malicious user can add newlines to their input (usually in encoded form) and "inject" those newlines into the returned HTTP response.

This capability allows users to work around security headers and HTTP/1.1 framing headers by injecting entirely false responses or other new headers. The injected false responses may also be treated as the response to subsequent requests, which can lead to XSS, cache poisoning, and a number of other flaws.

This issue was resolved by adding a default channel handler that polices outbound headers. This channel handler is added by default to channel pipelines, but can be removed by users if they are doing this validation themselves.

References

Affected packages

SwiftURL / github.com/apple/swift-nio

Package

Name
github.com/apple/swift-nio

Affected ranges

Type
SEMVER
Events
Introduced
2.41.0
Fixed
2.42.0

SwiftURL / github.com/apple/swift-nio

Package

Name
github.com/apple/swift-nio

Affected ranges

Type
SEMVER
Events
Introduced
2.39.0
Fixed
2.39.1

SwiftURL / github.com/apple/swift-nio

Package

Name
github.com/apple/swift-nio

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
2.29.1