CVE-2020-11462

High

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.

SeverityHigh
CVSS7.5
Exploit probability—
ProductOpenvpn Access Server
PublishedMay 4, 2020
First seenMay 4, 2020

How to fix

Update
  • openvpn openvpn_access_server2.7.0 or later

Affected products

ProductAffected versionsFixed in
openvpn openvpn_access_serverv < 2.7.0, 2.8.0 ≤ v ≤ 2.8.32.7.0

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CVE-2020-11462 · Openvpn Access Server · Dark Radar