Information Exposure Affecting ruby-irb package, versions <0:2.0.0.648-36.amzn2.0.9


Severity

Recommended
0.0
medium
0
10

Based on Amazon Linux security rating.

Threat Intelligence

EPSS
0.29% (69th percentile)

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  • Snyk IDSNYK-AMZN2-RUBYIRB-6745290
  • published1 May 2024
  • disclosed13 Jul 2021

Introduced: 13 Jul 2021

CVE-2021-31810  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade Amazon-Linux:2 ruby-irb to version 0:2.0.0.648-36.amzn2.0.9 or higher.
This issue was patched in ALAS2-2024-2534.

NVD Description

Note: Versions mentioned in the description apply only to the upstream ruby-irb package and not the ruby-irb package as distributed by Amazon-Linux. See How to fix? for Amazon-Linux:2 relevant fixed versions and status.

An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. A malicious FTP server can use the PASV response to trick Net::FTP into connecting back to a given IP address and port. This potentially makes curl extract information about services that are otherwise private and not disclosed (e.g., the attacker can conduct port scans and service banner extractions).

CVSS Scores

version 3.1