HTTP Request Smuggling Affecting rubygem24-net-telnet package, versions <0:0.1.1-2.13.amzn1


Severity

Recommended
medium

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.38% (74th percentile)

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  • Snyk IDSNYK-AMZN201803-RUBYGEM24NETTELNET-1725074
  • published27 Sept 2021
  • disclosed6 Oct 2020

Introduced: 6 Oct 2020

CVE-2020-25613  (opens in a new tab)
CWE-444  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2018.03 rubygem24-net-telnet to version 0:0.1.1-2.13.amzn1 or higher.
This issue was patched in ALAS-2020-1451.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rubygem24-net-telnet package and not the rubygem24-net-telnet package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2018.03 relevant fixed versions and status.

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.

CVSS Scores

version 3.1