HTTP Request Smuggling in iodine server for Ruby

1) HTTP Request Smuggling

EUVDB-ID: #VU29066

Risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform HTTP request smuggling attack.

The vulnerability exists due to insufficient validation of Content-Length and Transfer encoding header. A remote attacker can send a specially crafted HTTP request to the application and perform a request smuggling attack.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

iodine: 0.0.1 - 0.7.38

External links

http://snyk.io/vuln/SNYK-RUBY-IODINE-569134
http://github.com/boazsegev/iodine/commit/e5612e9e43a3b0145e49ff0038c95bdecbdec811
http://github.com/boazsegev/iodine/blob/master/CHANGELOG.md

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.