CVE-2021-42072
Apache Barrier Authentication Bypass Vulnerability
Description
An issue was discovered in Barrier before 2.4.0. The barriers component (aka the server-side implementation of Barrier) does not sufficiently verify the identify of connecting clients. Clients can thus exploit weaknesses in the provided protocol to cause denial-of-service or stage further attacks that could lead to information leaks or integrity corruption.
INFO
Published Date :
Nov. 8, 2021, 4:15 a.m.
Last Modified :
Nov. 7, 2023, 3:39 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.8
Affected Products
The following products are affected by CVE-2021-42072
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-2021-42072.
| URL | Resource |
|---|---|
| http://www.openwall.com/lists/oss-security/2021/11/02/4 | Exploit Mailing List Third Party Advisory |
| https://github.com/debauchee/barrier/releases/tag/v2.4.0 | Release Notes Third Party Advisory |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CIEVNCFEFO7L3NTM4VUZB3WKYYCBTFCI/ | |
| https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XMU3STOKHPEZSC54MZ42YBFFC2R3BU2Q/ |
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-2021-42072 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-42072 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]
Nov. 07, 2023
Action Type Old Value New Value Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XMU3STOKHPEZSC54MZ42YBFFC2R3BU2Q/ [No types assigned] Added Reference MITRE https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CIEVNCFEFO7L3NTM4VUZB3WKYYCBTFCI/ [No types assigned] Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/CIEVNCFEFO7L3NTM4VUZB3WKYYCBTFCI/ Removed Reference MITRE https://lists.fedoraproject.org/archives/list/[email protected]/message/XMU3STOKHPEZSC54MZ42YBFFC2R3BU2Q/ -
Modified Analysis by [email protected]
May. 15, 2022
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/CIEVNCFEFO7L3NTM4VUZB3WKYYCBTFCI/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/CIEVNCFEFO7L3NTM4VUZB3WKYYCBTFCI/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/XMU3STOKHPEZSC54MZ42YBFFC2R3BU2Q/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/XMU3STOKHPEZSC54MZ42YBFFC2R3BU2Q/ Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Mar. 03, 2022
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/CIEVNCFEFO7L3NTM4VUZB3WKYYCBTFCI/ [No Types Assigned] Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/XMU3STOKHPEZSC54MZ42YBFFC2R3BU2Q/ [No Types Assigned] -
Initial Analysis by [email protected]
Nov. 09, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type http://www.openwall.com/lists/oss-security/2021/11/02/4 No Types Assigned http://www.openwall.com/lists/oss-security/2021/11/02/4 Exploit, Mailing List, Third Party Advisory Changed Reference Type https://github.com/debauchee/barrier/releases/tag/v2.4.0 No Types Assigned https://github.com/debauchee/barrier/releases/tag/v2.4.0 Release Notes, Third Party Advisory Added CWE NIST CWE-287 Added CPE Configuration OR *cpe:2.3:a:barrier_project:barrier:*:*:*:*:*:*:*:* versions up to (excluding) 2.4.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-42072 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-2021-42072
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.25 }} 0.07%
score
0.65542
percentile