HTTP Request Smuggling Affecting reel package, versions >=0.0.0


Severity

0.0
high
0
10

    Threat Intelligence

    Exploit Maturity
    Proof of concept
    EPSS
    0.12% (46th percentile)

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  • Snyk ID SNYK-RUBY-REEL-569135
  • published 29 May 2020
  • disclosed 29 May 2020
  • credit Sam Sanoop of Snyk Security Team

How to fix?

There is no fixed version for reel.

Overview

reel is a fast, non-blocking "evented" web server built on http_parser.rb, websocket-driver, Celluloid::IO, and nio4r.

Note: This project is deprecated, and is not maintained anymore.

Affected versions of this package are vulnerable to HTTP Request Smuggling. HTTP pipelining issues and request smuggling attacks might be possible due to incorrect Content-Length and Transfer encoding header parsing.

It is possible conduct HTTP request smuggling attacks by sending the Content-Length header twice. Furthermore, invalid Transfer Encoding headers were found to be parsed as valid which could be leveraged for TE:CL smuggling attacks.

By manipulating the HTTP response the attacker could poison a web-cache, perform an XSS attack, or obtain sensitive information from requests other than their own.

References

CVSS Scores

version 3.1
Expand this section

Snyk

8.2 high
  • Attack Vector (AV)
    Network
  • Attack Complexity (AC)
    Low
  • Privileges Required (PR)
    None
  • User Interaction (UI)
    None
  • Scope (S)
    Unchanged
  • Confidentiality (C)
    High
  • Integrity (I)
    Low
  • Availability (A)
    None
Expand this section

NVD

7.5 high