CVE-2020-25613GHSA-GWFG-CQMG-CF8FBIT-RUBY-2020-25613BIT-RUBY-MIN-2020-25613
An issue was discovered in Ruby through 2.5.8, 2.6.x through 2.6.6, and 2.7.x through 2.7.1.
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Not listed in CISA KEV
- Fix
- Fixed in 1.6.1, 1.5.1, 1.4.4
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- 1 proof of concept on GitHub
Summary
An issue was discovered in Ruby through 2.5.8, 2.6.x through 2.6.6, and 2.7.x through 2.7.1. WEBrick, a simple HTTP server bundled with Ruby, had not checked the transfer-encoding header value rigorously. An attacker may potentially exploit this issue to bypass a reverse proxy (which also has a poor header check), which may lead to an HTTP Request Smuggling attack.
Timeline
- CVE published
- Record last updated
Affected versions
- n/a n/a
Version range not reported
- webrickRubyGems
From 1.6.0 · fixed in 1.6.1
- webrickRubyGems
From 1.5.0 · fixed in 1.5.1
- webrickRubyGems
fixed in 1.4.4