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hackeroneOoooooo_qH1:2071561
HistoryJul 17, 2023 - 5:09 a.m.

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

2023-07-1705:09:41
ooooooo_q
hackerone.com
$2540
55
internet bug bounty
redos vulnerability
uri
ruby
cve-2023-36617
parsing
mishandling
urls
execution time
incomplete fix
impact
bugbounty

0.002 Low

EPSS

Percentile

61.0%

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.