🚨 [security] Update rack 3.1.3 → 3.1.10 (patch)

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🚨 Your current dependencies have known security vulnerabilities 🚨

This dependency update fixes known security vulnerabilities. Please see the details below and assess their impact carefully. We recommend to merge and deploy this as soon as possible!

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Here is everything you need to know about this update. Please take a good look at what changed and the test results before merging this pull request.

What changed?

↗️ rack (indirect, 3.1.3 → 3.1.10) · Repo · Changelog

Security Advisories 🚨

🚨 Possible Log Injection in Rack::CommonLogger

Summary

Rack::CommonLogger can be exploited by crafting input that includes newline characters to manipulate log entries. The supplied proof-of-concept demonstrates injecting malicious content into logs.

Details

When a user provides the authorization credentials via Rack::Auth::Basic, if success, the username will be put in env['REMOTE_USER'] and later be used by Rack::CommonLogger for logging purposes.

The issue occurs when a server intentionally or unintentionally allows a user creation with the username contain CRLF and white space characters, or the server just want to log every login attempts. If an attacker enters a username with CRLF character, the logger will log the malicious username with CRLF characters into the logfile.

Impact

Attackers can break log formats or insert fraudulent entries, potentially obscuring real activity or injecting malicious data into log files.

Mitigation

• Update to the latest version of Rack.

🚨 Rack ReDoS Vulnerability in HTTP Accept Headers Parsing

Summary

A Regular Expression Denial of Service (ReDoS) vulnerability exists in the Rack::Request::Helpers module when parsing HTTP Accept headers. This vulnerability can be exploited by an attacker sending specially crafted Accept-Encoding or Accept-Language headers, causing the server to spend excessive time processing the request and leading to a Denial of Service (DoS).

Details

The fix for GHSA-54rr-7fvw-6x8f was not applied to the main branch and thus while the issue was fixed for the Rack v3.0 release series, it was not fixed in the v3.1 release series until v3.1.5.

Release Notes

3.1.9 (from changelog)

Fixed

• Rack::MediaType#params now handles parameters without values. (#2263, @AllyMarthaJ)

3.1.8 (from changelog)

Fixed

• Resolve deprecation warnings about uri DEFAULT_PARSER. (#2249, @earlopain)

3.1.7 (from changelog)

Fixed

• Do not remove escaped opening/closing quotes for content-disposition filenames. (#2229, @jeremyevans)
• Fix encoding setting for non-binary IO-like objects in MockRequest#env_for. (#2227, @jeremyevans)
• Rack::Response should not generate invalid content-length header. (#2219, @ioquatix)
• Allow empty PATH_INFO. (#2214, @ioquatix)

3.1.6 (from changelog)

• Fix several edge cases in Rack::Request#parse_http_accept_header's implementation. (#2226, @ioquatix)

3.1.5 (from changelog)

Security

• Fix potential ReDoS attack in Rack::Request#parse_http_accept_header. (GHSA-cj83-2ww7-mvq7, @dwisiswant0)

3.1.4 (from changelog)

Fixed

• Fix Rack::Lint matching some paths incorrectly as authority form. (#2220, @ioquatix)

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by 28 commits:

• Bump patch version.
• Escape non-printable characters when logging.
• Bump patch version.
• Update changelog.
• fix: malformed charset param (#2263) (#2277)
• Update test versions.
• Fix permissions for external tests. (#2244)
• Fix title level.
• Add `Fixed` section.
• Bump patch version.
• Resolve deprecation warnings about uri `DEFAULT_PARSER` (#2242) (#2249)
• Bump patch version.
• Ignore external tests directory.
• Prepare for 3.1.7 release.
• Add more external tests.
• Improve `Rack::Response` content-length header generation. (#2219)
• Fix encoding setting for non-binary IO-like objects in MockRequest#env_for
• Do not remove escaped opening/closing quotes for content-disposition filenames
• Synchronize changelog with HEAD.
• Allow empty PATH_INFO. (#2214) (#2234)
• Bump patch version.
• Improved handling of invalid `accept` headers. (#2226)
• Bump patch version.
• Whitespace.
• Add changelog for GHSA-cj83-2ww7-mvq7.
• Merge pull request from GHSA-cj83-2ww7-mvq7
• Bump patch version.
• Don't allow authority to match path. (#2220)

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