CVE-2020-11462
OpenVPN Access Server XML Entity Expansion Information Disclosure/DoS
Description
An issue was discovered in OpenVPN Access Server before 2.7.0 and 2.8.x before 2.8.3. With the full featured RPC2 interface enabled, it is possible to achieve a temporary DoS state of the management interface when sending an XML Entity Expansion (XEE) payload to the XMLRPC based RPC2 interface. The duration of the DoS state depends on available memory and CPU speed. The default restricted mode of the RPC2 interface is NOT vulnerable.
INFO
Published Date :
May 4, 2020, 2:15 p.m.
Last Modified :
Nov. 21, 2024, 4:57 a.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
3.6
Exploitability Score :
3.9
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-2020-11462.
| URL | Resource |
|---|---|
| https://openvpn.net/vpn-server-resources/release-notes/#Release_notes_for_OpenVPN_Access_Server_283 | Release Notes Vendor Advisory |
| https://openvpn.net/vpn-server-resources/release-notes/#Release_notes_for_OpenVPN_Access_Server_283 | Release Notes 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-2020-11462 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2020-11462 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 af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://openvpn.net/vpn-server-resources/release-notes/#Release_notes_for_OpenVPN_Access_Server_283 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Reanalysis by [email protected]
May. 12, 2020
Action Type Old Value New Value Changed CPE Configuration OR *cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:* versions up to (excluding) 2.7.0 *cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:* versions from (including) 2.8.0 up to (including) 2.8.3 OR *cpe:2.3:a:openvpn:openvpn_access_server:*:*:*:*:*:*:*:* versions up to (excluding) 2.7.0 *cpe:2.3:a:openvpn:openvpn_access_server:*:*:*:*:*:*:*:* versions from (including) 2.8.0 up to (including) 2.8.3 -
Initial Analysis by [email protected]
May. 08, 2020
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:M/Au:N/C:N/I:N/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Changed Reference Type https://openvpn.net/vpn-server-resources/release-notes/#Release_notes_for_OpenVPN_Access_Server_283 No Types Assigned https://openvpn.net/vpn-server-resources/release-notes/#Release_notes_for_OpenVPN_Access_Server_283 Release Notes, Vendor Advisory Added CWE NIST CWE-776 Added CPE Configuration OR *cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:* versions up to (excluding) 2.7.0 *cpe:2.3:a:openvpn:openvpn:*:*:*:*:*:*:*:* versions from (including) 2.8.0 up to (including) 2.8.3
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2020-11462 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-2020-11462
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.10 }} 0.00%
score
0.40663
percentile