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CVE-2023-36617: ReDoS vulnerability in URI (Ruby)

Medium
I
Internet Bug Bounty
Submitted None

Team Summary

Official summary from Internet Bug Bounty

CVE-2023-36617: ReDoS vulnerability in URI We have released the uri gem version 0.12.2, 0.10.3 that has a security fix for a ReDoS vulnerability. This vulnerability has been assigned the CVE identifier CVE-2023-36617. Details A ReDoS issue was discovered in the URI component through 0.12.1 for Ruby. The URI parser mishandles invalid URLs that have specific characters. There is an increase in execution time for parsing strings to URI objects with rfc2396_parser.rb and rfc3986_parser.rb. NOTE: this issue exists because of an incomplete fix for CVE-2023-28755. The uri gem version 0.12.1 and all versions prior 0.12.1 are vulnerable for this vulnerability. Recommended action We recommend to update the uri gem to 0.12.2. In order to ensure compatibility with bundled version in older Ruby series, you may update as follows instead: For Ruby 3.0: Update to uri 0.10.3 For Ruby 3.1 and 3.2: Update to uri 0.12.2 You can use gem update uri to update it. If you are using bundler, please add gem "uri", ">= 0.12.2" (or other version mentioned above) to your Gemfile. Affected versions uri gem 0.12.1 or before Credits Thanks to ooooooo_q for discovering this issue. Thanks to nobu for fixing this issue. Full security advisory: https://www.ruby-lang.org/en/news/2023/06/29/redos-in-uri-CVE-2023-36617/

Reported by ooooooo_q

Vulnerability Details

Technical details and impact analysis

I made a report at https://hackerone.com/reports/1958260 . https://www.ruby-lang.org/en/news/2023/06/29/redos-in-uri-CVE-2023-36617/ > A ReDoS issue was discovered in the URI component through 0.12.1 for Ruby. The URI parser mishandles invalid URLs that have specific characters. There is an increase in execution time for parsing strings to URI objects with rfc2396_parser.rb and rfc3986_parser.rb. > NOTE: this issue exists because of an incomplete fix for CVE-2023-28755. ## Impact Parsing of URIs may cause ReDoS. Especially when using RFC2396_Parser, even Ruby 3.2.x is affected.

Related CVEs

Associated Common Vulnerabilities and Exposures

A ReDoS issue was discovered in the URI component before 0.12.2 for Ruby. The URI parser mishandles invalid URLs that have specific characters. There is an increase in execution time for parsing strings to URI objects with rfc2396_parser.rb and rfc3986_parser.rb. NOTE: this issue exists becuse of an incomplete fix for …

A ReDoS issue was discovered in the URI component through 0.12.0 in Ruby through 3.2.1. The URI parser mishandles invalid URLs that have specific characters. It causes an increase in execution time for parsing strings to URI objects. The fixed versions are 0.12.1, 0.11.1, 0.10.2 and 0.10.0.1.

Report Details

Additional information and metadata

State

Closed

Substate

Resolved

Bounty

$2540.00

Submitted