CVE-2015-8023
StrongSwan EAP-MSCHAPv2 Authentication Bypass Vulnerability
Description
The server implementation of the EAP-MSCHAPv2 protocol in the eap-mschapv2 plugin in strongSwan 4.2.12 through 5.x before 5.3.4 does not properly validate local state, which allows remote attackers to bypass authentication via an empty Success message in response to an initial Challenge message.
INFO
Published Date :
Nov. 18, 2015, 4:59 p.m.
Last Modified :
Nov. 7, 2023, 2:28 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
2.9
Exploitability Score :
10.0
Affected Products
The following products are affected by CVE-2015-8023
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-2015-8023
.
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-2015-8023
vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2015-8023
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://www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-%28cve-2015-8023%29.html [No types assigned] Removed Reference MITRE https://www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-(cve-2015-8023).html -
CVE Modified by [email protected]
Aug. 13, 2018
Action Type Old Value New Value Removed Reference https://www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-%28cve-2015-8023%29.html [Vendor Advisory] Added Reference https://www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-(cve-2015-8023).html [No Types Assigned] -
CVE Modified by [email protected]
Dec. 07, 2016
Action Type Old Value New Value Added Reference http://lists.opensuse.org/opensuse-updates/2015-11/msg00139.html [No Types Assigned] Added Reference http://lists.opensuse.org/opensuse-security-announce/2015-12/msg00025.html [No Types Assigned] -
CVE Modified by [email protected]
Nov. 28, 2016
Action Type Old Value New Value Added Reference http://www.securityfocus.com/bid/84947 [No Types Assigned] -
Modified Analysis by [email protected]
Nov. 24, 2015
Action Type Old Value New Value Changed CPE Configuration Configuration 1 OR *cpe:2.3:a:strongswan:strongswan:4.2.12:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.2.13:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.2.14:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.2.15:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.2.16:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.3:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.4:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.5:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.6:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.7:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.4.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.4.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.5.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.5.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.5.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.5.3:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.6.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.6.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.6.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.6.3:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.6.4:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.0.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.0.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.0.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.0.3:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.0.4:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.1.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.1.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.1.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.1.3:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.2.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.2.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.2.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.2.3:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.3.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.3.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.3.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.3.3:*:*:*:*:*:*:* Configuration 1 OR *cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:15.10:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:* Configuration 2 OR *cpe:2.3:a:strongswan:strongswan:4.2.12:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.2.13:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.2.14:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.2.15:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.2.16:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.3:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.4:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.5:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.6:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.7:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.4.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.4.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.5.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.5.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.5.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.5.3:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.6.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.6.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.6.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.6.3:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.6.4:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.0.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.0.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.0.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.0.3:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.0.4:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.1.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.1.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.1.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.1.3:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.2.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.2.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.2.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.2.3:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.3.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.3.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.3.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.3.3:*:*:*:*:*:*:* Changed Reference Type https://www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-%28cve-2015-8023%29.html No Types Assigned https://www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-%28cve-2015-8023%29.html Advisory -
CVE Modified by [email protected]
Nov. 20, 2015
Action Type Old Value New Value Removed Reference https://www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-(cve-2015-8023).html Added Reference https://www.strongswan.org/blog/2015/11/16/strongswan-vulnerability-%28cve-2015-8023%29.html -
Modified Analysis by [email protected]
Nov. 19, 2015
Action Type Old Value New Value Added CPE Configuration Configuration 1 OR *cpe:2.3:a:strongswan:strongswan:4.2.12:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.2.13:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.2.14:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.2.15:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.2.16:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.3:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.4:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.5:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.6:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.3.7:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.4.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.4.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.5.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.5.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.5.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.5.3:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.6.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.6.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.6.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.6.3:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:4.6.4:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.0.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.0.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.0.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.0.3:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.0.4:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.1.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.1.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.1.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.1.3:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.2.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.2.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.2.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.2.3:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.3.0:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.3.1:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.3.2:*:*:*:*:*:*:* *cpe:2.3:a:strongswan:strongswan:5.3.3:*:*:*:*:*:*:* Added CVSS V2 (AV:N/AC:L/Au:N/C:N/I:P/A:N) Added CWE CWE-20 Added CWE CWE-264 -
Initial Analysis by [email protected]
Nov. 19, 2015
Action Type Old Value New Value
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2015-8023
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-2015-8023
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.53 }} 0.00%
score
0.73399
percentile