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[email protected]NVD:CVE-2021-32066

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

CVE-2021-32066

2021-08-0119:15:07

CWE-755

[email protected]

web.nvd.nist.gov

ruby

starttls

vulnerability

cve-2021-32066

net::imap

man-in-the-middle

tls protections

starttls stripping attack

CVSS2

5.8

Attack Vector

NETWORK

Attack 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

CVSS3

7.4

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

EPSS

0.002

Percentile

64.4%

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.”

Affected configurations

Nvd

Node

ruby-langrubyRange2.6.0–2.6.7

ruby-langrubyRange2.7.0–2.7.3

ruby-langrubyRange3.0.0–3.0.1

Node

oraclejd_edwards_enterpriseone_toolsRange<9.2.6.1

VendorProductVersionCPE
ruby-langruby*cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:*
oraclejd_edwards_enterpriseone_tools*cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
ruby-lang	ruby	*	cpe:2.3:a:ruby-lang:ruby::::::::
oracle	jd_edwards_enterpriseone_tools	*	cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools::::::::