CVE-2021-32066
Apache Net::IMAP TLS Stripping Vulnerability
Description
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."
INFO
Published Date :
Aug. 1, 2021, 7:15 p.m.
Last Modified :
Jan. 24, 2024, 5:15 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.2
Exploitability Score :
2.2
Affected Products
The following products are affected by CVE-2021-32066
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-32066.
| URL | Resource |
|---|---|
| https://github.com/ruby/ruby/commit/a21a3b7d23704a01d34bd79d09dc37897e00922a | Patch Third Party Advisory |
| https://hackerone.com/reports/1178562 | Exploit Patch Third Party Advisory |
| https://lists.debian.org/debian-lts-announce/2021/10/msg00009.html | Third Party Advisory |
| 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/ | Third Party Advisory |
| https://www.oracle.com/security-alerts/cpuapr2022.html | Patch Third Party Advisory |
| https://www.ruby-lang.org/en/news/2021/07/07/starttls-stripping-in-net-imap/ | Vendor Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-32066 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-32066 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Jan. 24, 2024
Action Type Old Value New Value Added Reference MITRE https://security.gentoo.org/glsa/202401-27 [No types assigned] -
CWE Remap by [email protected]
Aug. 08, 2023
Action Type Old Value New Value Changed CWE CWE-326 CWE-755 -
CVE Modified by [email protected]
Apr. 30, 2023
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2023/04/msg00033.html [No Types Assigned] -
Modified Analysis by [email protected]
May. 10, 2022
Action Type Old Value New Value Changed Reference Type https://www.oracle.com/security-alerts/cpuapr2022.html No Types Assigned https://www.oracle.com/security-alerts/cpuapr2022.html Patch, Third Party Advisory Added CPE Configuration OR *cpe:2.3:a:oracle:jd_edwards_enterpriseone_tools:*:*:*:*:*:*:*:* versions up to (excluding) 9.2.6.1 -
CVE Modified by [email protected]
Apr. 20, 2022
Action Type Old Value New Value Added Reference https://www.oracle.com/security-alerts/cpuapr2022.html [No Types Assigned] -
Modified Analysis by [email protected]
Oct. 18, 2021
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2021/10/msg00009.html No Types Assigned https://lists.debian.org/debian-lts-announce/2021/10/msg00009.html Third Party Advisory Changed Reference Type https://security.netapp.com/advisory/ntap-20210902-0004/ No Types Assigned https://security.netapp.com/advisory/ntap-20210902-0004/ Third Party Advisory -
CVE Modified by [email protected]
Oct. 13, 2021
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2021/10/msg00009.html [No Types Assigned] -
CVE Modified by [email protected]
Sep. 02, 2021
Action Type Old Value New Value Added Reference https://security.netapp.com/advisory/ntap-20210902-0004/ [No Types Assigned] -
Initial Analysis by [email protected]
Aug. 10, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:P/I:P/A:N) Added CVSS V3.1 NIST AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N Changed Reference Type https://github.com/ruby/ruby/commit/a21a3b7d23704a01d34bd79d09dc37897e00922a No Types Assigned https://github.com/ruby/ruby/commit/a21a3b7d23704a01d34bd79d09dc37897e00922a Patch, Third Party Advisory Changed Reference Type https://hackerone.com/reports/1178562 No Types Assigned https://hackerone.com/reports/1178562 Exploit, Patch, Third Party Advisory Changed Reference Type https://www.ruby-lang.org/en/news/2021/07/07/starttls-stripping-in-net-imap/ No Types Assigned https://www.ruby-lang.org/en/news/2021/07/07/starttls-stripping-in-net-imap/ Vendor Advisory Added CWE NIST CWE-326 Added CPE Configuration OR *cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* versions from (including) 2.6.0 up to (including) 2.6.7 *cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* versions from (including) 2.7.0 up to (including) 2.7.3 *cpe:2.3:a:ruby-lang:ruby:*:*:*:*:*:*:*:* versions from (including) 3.0.0 up to (including) 3.0.1
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-32066 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-32066
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.24 }} 0.02%
score
0.62278
percentile