Information Exposure Affecting ruby-irb package, versions <0:2.0.0.648-36.amzn2.0.9
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Test your applications- Snyk ID SNYK-AMZN2-RUBYIRB-6745290
- published 1 May 2024
- disclosed 13 Jul 2021
Introduced: 13 Jul 2021
CVE-2021-31810 Open this link in a new tabHow 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).
References
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-31810
- https://www.ruby-lang.org/en/news/2021/07/07/trusting-pasv-responses-in-net-ftp/
- https://hackerone.com/reports/1145454
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MWXHK5UUHVSHF7HTHMX6JY3WXDVNIHSL/
- https://security.netapp.com/advisory/ntap-20210917-0001/
- https://lists.debian.org/debian-lts-announce/2021/10/msg00009.html
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MWXHK5UUHVSHF7HTHMX6JY3WXDVNIHSL/
- https://security.gentoo.org/glsa/202401-27