CVE-2020-15078
OpenVPN Authentication Bypass in Server with Deferred Authentication
Description
OpenVPN 2.5.1 and earlier versions allows a remote attackers to bypass authentication and access control channel data on servers configured with deferred authentication, which can be used to potentially trigger further information leaks.
INFO
Published Date :
April 26, 2021, 2:15 p.m.
Last Modified :
Nov. 7, 2023, 3:17 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
Public PoC/Exploit Available at Github
CVE-2020-15078 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
Affected Products
The following products are affected by CVE-2020-15078
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-2020-15078.
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).
None
Shell
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2020-15078 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-15078 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 OpenVPN Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GJUXEYHUPREEBPX23VPEKMFXUPVO3PMU/ [No types assigned] Added Reference OpenVPN Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PLDB3OBQ3AODYYRN7NRCABV6I4AUFAT6/ [No types assigned] Added Reference OpenVPN Inc. https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/JGEGLC4YGBDN5CGHTNWN2GH6DJJA36T2/ [No types assigned] Removed Reference OpenVPN Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/JGEGLC4YGBDN5CGHTNWN2GH6DJJA36T2/ Removed Reference OpenVPN Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/GJUXEYHUPREEBPX23VPEKMFXUPVO3PMU/ Removed Reference OpenVPN Inc. https://lists.fedoraproject.org/archives/list/[email protected]/message/PLDB3OBQ3AODYYRN7NRCABV6I4AUFAT6/ -
Reanalysis by [email protected]
Aug. 05, 2022
Action Type Old Value New Value Removed CWE NIST CWE-287 Added CWE NIST CWE-306 -
Modified Analysis by [email protected]
May. 12, 2022
Action Type Old Value New Value Changed Reference Type https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html No Types Assigned https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html Mailing List, Third Party Advisory Added CPE Configuration OR *cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* -
CVE Modified by [email protected]
May. 03, 2022
Action Type Old Value New Value Added Reference https://lists.debian.org/debian-lts-announce/2022/05/msg00002.html [No Types Assigned] -
Modified Analysis by [email protected]
Dec. 10, 2021
Action Type Old Value New Value Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/GJUXEYHUPREEBPX23VPEKMFXUPVO3PMU/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/GJUXEYHUPREEBPX23VPEKMFXUPVO3PMU/ Mailing List, Third Party Advisory Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/PLDB3OBQ3AODYYRN7NRCABV6I4AUFAT6/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/PLDB3OBQ3AODYYRN7NRCABV6I4AUFAT6/ Mailing List, Third Party Advisory Changed Reference Type https://usn.ubuntu.com/usn/usn-4933-1 No Types Assigned https://usn.ubuntu.com/usn/usn-4933-1 Third Party Advisory Changed CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* OR *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* *cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Added CPE Configuration OR *cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:20.04:*:*:*:lts:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:20.10:*:*:*:*:*:*:* *cpe:2.3:o:canonical:ubuntu_linux:21.04:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Jul. 30, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/GJUXEYHUPREEBPX23VPEKMFXUPVO3PMU/ [No Types Assigned] Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/PLDB3OBQ3AODYYRN7NRCABV6I4AUFAT6/ [No Types Assigned] Added Reference https://usn.ubuntu.com/usn/usn-4933-1 [No Types Assigned] -
Modified Analysis by [email protected]
Jun. 02, 2021
Action Type Old Value New Value Changed Reference Type https://security.gentoo.org/glsa/202105-25 No Types Assigned https://security.gentoo.org/glsa/202105-25 Third Party Advisory -
CVE Modified by [email protected]
May. 26, 2021
Action Type Old Value New Value Added Reference https://security.gentoo.org/glsa/202105-25 [No Types Assigned] -
Initial Analysis by [email protected]
May. 19, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:N/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://community.openvpn.net/openvpn/wiki/CVE-2020-15078 No Types Assigned https://community.openvpn.net/openvpn/wiki/CVE-2020-15078 Patch, Vendor Advisory Changed Reference Type https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements No Types Assigned https://community.openvpn.net/openvpn/wiki/SecurityAnnouncements Broken Link Changed Reference Type https://lists.fedoraproject.org/archives/list/[email protected]/message/JGEGLC4YGBDN5CGHTNWN2GH6DJJA36T2/ No Types Assigned https://lists.fedoraproject.org/archives/list/[email protected]/message/JGEGLC4YGBDN5CGHTNWN2GH6DJJA36T2/ Mailing List, Third Party Advisory Added CWE NIST CWE-287 Added CPE Configuration OR *cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:* versions up to (excluding) 2.4.11 *cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:* versions from (including) 2.5.0 up to (excluding) 2.5.2 Added CPE Configuration OR *cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:* -
CVE Modified by [email protected]
Apr. 29, 2021
Action Type Old Value New Value Added Reference https://lists.fedoraproject.org/archives/list/[email protected]/message/JGEGLC4YGBDN5CGHTNWN2GH6DJJA36T2/ [No Types Assigned]
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-15078 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-2020-15078
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
2.89 }} 0.83%
score
0.90850
percentile