Vulnerability Details CVE-2021-32066
An issue was discovered in Ruby through 2.6.7, 2.7.x through 2.7.3, and 3.x through 3.0.1. Net::IMAP does not raise an exception when StartTLS fails with an an unknown response, which might allow man-in-the-middle attackers to bypass the TLS protections by leveraging a network position between the client and the registry to block the StartTLS command, aka a "StartTLS stripping attack."
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 33.0%
CVSS Severity
CVSS v3 Score 7.4
CVSS v2 Score 5.8
References
- https://github.com/ruby/ruby/commit/a21a3b7d23704a01d34bd79d09dc37897e00922a
- https://hackerone.com/reports/1178562
- https://lists.debian.org/debian-lts-announce/2021/10/msg00009.html
- https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html
- https://security.gentoo.org/glsa/202401-27
- https://security.netapp.com/advisory/ntap-20210902-0004/
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.ruby-lang.org/en/news/2021/07/07/starttls-stripping-in-net-imap/
- https://github.com/ruby/ruby/commit/a21a3b7d23704a01d34bd79d09dc37897e00922a
- https://hackerone.com/reports/1178562
- https://lists.debian.org/debian-lts-announce/2021/10/msg00009.html
- https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html
- https://security.gentoo.org/glsa/202401-27
- https://security.netapp.com/advisory/ntap-20210902-0004/
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.ruby-lang.org/en/news/2021/07/07/starttls-stripping-in-net-imap/
Products affected by CVE-2021-32066
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cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:-
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cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:4.0.1.0
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cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:9.1
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cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:9.1.5
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cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:9.2
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cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:9.2.0.0
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cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:9.2.4.0
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cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:9.2.4.2
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cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:9.2.5.0
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cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:9.2.5.3
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cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:9.2.6.0
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cpe:2.3:a:ruby-lang:ruby:2.6.0
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cpe:2.3:a:ruby-lang:ruby:2.6.1
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cpe:2.3:a:ruby-lang:ruby:2.6.2
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cpe:2.3:a:ruby-lang:ruby:2.6.3
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cpe:2.3:a:ruby-lang:ruby:2.6.4
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cpe:2.3:a:ruby-lang:ruby:2.6.5
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cpe:2.3:a:ruby-lang:ruby:2.6.6
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cpe:2.3:a:ruby-lang:ruby:2.6.7
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cpe:2.3:a:ruby-lang:ruby:2.7.0
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cpe:2.3:a:ruby-lang:ruby:2.7.1
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cpe:2.3:a:ruby-lang:ruby:2.7.2
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cpe:2.3:a:ruby-lang:ruby:2.7.3
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cpe:2.3:a:ruby-lang:ruby:3.0.0
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cpe:2.3:a:ruby-lang:ruby:3.0.1