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[email protected]CVE-2021-32066

HistoryAug 01, 2021 - 7:15 p.m.

CVE-2021-32066

2021-08-0119:15:00

CWE-755

[email protected]

web.nvd.nist.gov

247

cve-2021-32066

ruby

net::imap

starttls

stripping attack

security vulnerability

7.4 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

NONE

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

7.2 High

AI Score

Confidence

High

5.8 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

NONE

AV:N/AC:M/Au:N/C:P/I:P/A:N

0.002 Low

EPSS

Percentile

63.8%

JSON

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.”

CPENameOperatorVersion
ruby-lang:rubyruby-lang rubyle3.0.1
ruby-lang:rubyruby-lang rubyle2.7.3
ruby-lang:rubyruby-lang rubyle2.6.7
oracle:jd_edwards_enterpriseone_toolsoracle jd edwards enterpriseone toolslt9.2.6.1

CPE	Name	Operator	Version
ruby-lang:ruby	ruby-lang ruby	le	3.0.1
ruby-lang:ruby	ruby-lang ruby	le	2.7.3
ruby-lang:ruby	ruby-lang ruby	le	2.6.7
oracle:jd_edwards_enterpriseone_tools	oracle jd edwards enterpriseone tools	lt	9.2.6.1