🚨 [security] [ruby] Update rack 2.2.6.4 → 2.2.11 (minor)

[depfu]

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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, 2.2.6.4 → 2.2.11) · 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 vulnerable to ReDoS in content type parsing (2nd degree polynomial)

Summary

module Rack
  class MediaType
    SPLIT_PATTERN = %r{\s*[;,]\s*}

The above regexp is subject to ReDos. 50K blank characters as a prefix to the header will take over 10s to split.

PoC

A simple HTTP request with lots of blank characters in the content-type header:

request["Content-Type"] = (" " * 50_000) + "a,"

Impact

It's a very easy to craft ReDoS. Like all ReDoS the impact is debatable.

🚨 Rack has possible DoS Vulnerability with Range Header

Possible DoS Vulnerability with Range Header in Rack

There is a possible DoS vulnerability relating to the Range request header in
Rack. This vulnerability has been assigned the CVE identifier CVE-2024-26141.

Versions Affected: >= 1.3.0.
Not affected: < 1.3.0
Fixed Versions: 3.0.9.1, 2.2.8.1

Impact

Carefully crafted Range headers can cause a server to respond with an
unexpectedly large response. Responding with such large responses could lead
to a denial of service issue.

Vulnerable applications will use the Rack::File middleware or the
Rack::Utils.byte_ranges methods (this includes Rails applications).

Releases

The fixed releases are available at the normal locations.

Workarounds

There are no feasible workarounds for this issue.

Patches

To aid users who aren't able to upgrade immediately we have provided patches for
the two supported release series. They are in git-am format and consist of a
single changeset.

• 3-0-range.patch - Patch for 3.0 series
• 2-2-range.patch - Patch for 2.2 series

Credits

Thank you ooooooo_q for the report and
patch

🚨 Rack Header Parsing leads to Possible Denial of Service Vulnerability

Possible Denial of Service Vulnerability in Rack Header Parsing

There is a possible denial of service vulnerability in the header parsing
routines in Rack. This vulnerability has been assigned the CVE identifier
CVE-2024-26146.

Versions Affected: All.
Not affected: None
Fixed Versions: 2.0.9.4, 2.1.4.4, 2.2.8.1, 3.0.9.1

Impact

Carefully crafted headers can cause header parsing in Rack to take longer than
expected resulting in a possible denial of service issue. Accept and Forwarded
headers are impacted.

Ruby 3.2 has mitigations for this problem, so Rack applications using Ruby 3.2
or newer are unaffected.

Releases

The fixed releases are available at the normal locations.

Workarounds

There are no feasible workarounds for this issue.

Patches

To aid users who aren't able to upgrade immediately we have provided patches for
the two supported release series. They are in git-am format and consist of a
single changeset.

• 2-0-header-redos.patch - Patch for 2.0 series
• 2-1-header-redos.patch - Patch for 2.1 series
• 2-2-header-redos.patch - Patch for 2.2 series
• 3-0-header-redos.patch - Patch for 3.0 series

Credits

Thanks to svalkanov for reporting this and
providing patches!

Release Notes

2.2.10 (from changelog)

• Fix compatibility issues with Ruby v3.4.0. (#2248, @byroot)

2.2.8.1

What's Changed

• Fixed ReDoS in Accept header parsing [CVE-2024-26146]
• Fixed ReDoS in Content Type header parsing [CVE-2024-25126]
• Reject Range headers which are too large [CVE-2024-26141]

Full Changelog: v2.2.8...v2.2.8.1

2.2.7

What's Changed

• Correct the year number in the changelog by @kimulab in #2015
• Support underscore in host names for Rack 2.2 (Fixes #2070) by @jeremyevans in #2071

New Contributors

• @kimulab made their first contribution in #2015

Full Changelog: v2.2.6.4...v2.2.7

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

Commits

See the full diff on Github. The new version differs by 23 commits:

• Bump patch version.
• Escape non-printable characters when logging.
• Bump patch version.
• [2.2-stable] Fix compatibility issues with Ruby 3.4.0dev (#2248)
• Bump patch version.
• Merge branch '2-2-sec' into 2-2-stable
• bump version
• Avoid 2nd degree polynomial regexp in MediaType
• Return an empty array when ranges are too large
• Fixing ReDoS in header parsing
• backport #2104 (#2121)
• Update CHANGELOG for 2.2.8 (#2107)
• Adds missing 2.2.8 to CHANGELOG.md (#2106)
• Bump patch version.
• Regenerate SPEC (#2102)
• Fix inefficient assert pattern in Rack::Lint (#2101)
• Prefer ubuntu-latest for testing. (#2095)
• Update cookie.rb (#2092)
• adds missing 2.2.7 to CHANGELOG.md (#2081)
• Limit file extension length of multipart tempfiles (#2069) (#2075)
• Bump patch version.
• Support underscore in host names for Rack 2.2 (Fixes #2070) (#2071)
• Merge branch '2-2-sec' into 2-2-stable

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