XMLRPC Interface Vulnerability in OpenVPN Access Server
CVE-2020-11462

7.5HIGH

Key Information:

Vendor
Openvpn
Status
Openvpn Access Server
Vendor
CVE Published:
4 May 2020

Summary

A vulnerability in OpenVPN Access Server allows for a potential Denial of Service (DoS) condition through the RPC2 interface when malicious XML Entity Expansion (XEE) payloads are sent. This affects versions prior to 2.7.0 and 2.8.x before 2.8.3, putting systems at risk of resource depletion depending on their memory and CPU capacity. Importantly, the default restricted mode of the RPC2 interface is not affected by this issue.

References

https://openvpn.net/vpn-server-resources/release-notes/#R...
x_refsource_MISC

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.