Upstream information

CVE-2018-7544 at MITRE

Description

** DISPUTED ** A cross-protocol scripting issue was discovered in the management interface in OpenVPN through 2.4.5. When this interface is enabled over TCP without a password, and when no other clients are connected to this interface, attackers can execute arbitrary management commands, obtain sensitive information, or cause a denial of service (SIGTERM) by triggering XMLHttpRequest actions in a web browser. This is demonstrated by a multipart/form-data POST to http://localhost:23000 with a "signal SIGTERM" command in a TEXTAREA element. NOTE: The vendor disputes that this is a vulnerability. They state that this is the result of improper configuration of the OpenVPN instance rather than an intrinsic vulnerability, and now more explicitly warn against such configurations in both the management-interface documentation, and with a runtime warning.

SUSE information

Overall state of this security issue: Revisit

This issue is currently rated as having low severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 6.4
Vector AV:N/AC:L/Au:N/C:P/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 9.1 5.3
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:H
Access Vector Network Network
Access Complexity Low High
Privileges Required None None
User Interaction None Required
Scope Unchanged Unchanged
Confidentiality Impact High None
Integrity Impact None None
Availability Impact High High
CVSSv3 Version 3 3
SUSE Bugzilla entry: 1085803 [IN_PROGRESS]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Module for Basesystem 15 SP2
  • openvpn >= 2.4.3-5.7.1
  • openvpn-auth-pam-plugin >= 2.4.3-5.7.1
  • openvpn-devel >= 2.4.3-5.7.1
Patchnames:
SUSE-SLE-Module-Basesystem-15-SP2-2021-1577
SUSE Linux Enterprise Module for Basesystem 15 SP3
  • openvpn >= 2.4.3-5.7.1
  • openvpn-auth-pam-plugin >= 2.4.3-5.7.1
  • openvpn-devel >= 2.4.3-5.7.1
Patchnames:
SUSE-SLE-Module-Basesystem-15-SP3-2021-1577
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP2
  • openvpn-down-root-plugin >= 2.4.3-5.7.1
Patchnames:
SUSE-SLE-Module-Development-Tools-OBS-15-SP2-2021-1577
SUSE Linux Enterprise Module for Open Buildservice Development Tools 15 SP3
  • openvpn-down-root-plugin >= 2.4.3-5.7.1
Patchnames:
SUSE-SLE-Module-Development-Tools-OBS-15-SP3-2021-1577
SUSE Linux Enterprise Server 11-SECURITY
  • openvpn-openssl1 >= 2.3.2-0.10.9.1
  • openvpn-openssl1-down-root-plugin >= 2.3.2-0.10.9.1
Patchnames:
secsp3-openvpn-openssl1-14723
SUSE Linux Enterprise Server 12 SP5
SUSE Linux Enterprise Server for SAP Applications 12 SP5
  • openvpn >= 2.3.8-16.26.1
  • openvpn-auth-pam-plugin >= 2.3.8-16.26.1
Patchnames:
SUSE-SLE-SERVER-12-SP5-2021-1576
openSUSE Leap 15.2
  • openvpn >= 2.4.3-lp152.6.3.1
  • openvpn-auth-pam-plugin >= 2.4.3-lp152.6.3.1
  • openvpn-devel >= 2.4.3-lp152.6.3.1
  • openvpn-down-root-plugin >= 2.4.3-lp152.6.3.1
Patchnames:
openSUSE-2021-734


Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s) Source package State
HPE Helion OpenStack 8 openvpn In progress
SUSE CaaS Platform 4.0 openvpn In progress
SUSE Enterprise Storage 6 openvpn In progress
SUSE Linux Enterprise Desktop 12 SP2 openvpn Affected
SUSE Linux Enterprise Desktop 12 SP3 openvpn Affected
SUSE Linux Enterprise High Performance Computing 12 SP5 openvpn Released
SUSE Linux Enterprise High Performance Computing 15 LTSS openvpn In progress
SUSE Linux Enterprise High Performance Computing 15 SP1 ESPOS openvpn In progress
SUSE Linux Enterprise High Performance Computing 15 SP1 LTSS openvpn In progress
SUSE Linux Enterprise Module for Basesystem 15 SP2 openvpn Released
SUSE Linux Enterprise Module for Basesystem 15 SP3 openvpn Released
SUSE Linux Enterprise Server 11 SP1 openvpn Analysis
SUSE Linux Enterprise Server 11 SP3 openvpn Analysis
SUSE Linux Enterprise Server 11 SP3 openvpn-openssl1 Analysis
SUSE Linux Enterprise Server 11 SP3 LTSS openvpn Affected
SUSE Linux Enterprise Server 11 SP4 openvpn Affected
SUSE Linux Enterprise Server 12 LTSS openvpn Unsupported
SUSE Linux Enterprise Server 12 SP1 LTSS openvpn Unsupported
SUSE Linux Enterprise Server 12 SP2 openvpn Affected
SUSE Linux Enterprise Server 12 SP3 openvpn Affected
SUSE Linux Enterprise Server 12 SP3 ESPOS openvpn In progress
SUSE Linux Enterprise Server 12 SP3 LTSS openvpn In progress
SUSE Linux Enterprise Server 12 SP4 ESPOS openvpn In progress
SUSE Linux Enterprise Server 12 SP4 LTSS openvpn In progress
SUSE Linux Enterprise Server 12 SP5 openvpn Released
SUSE Linux Enterprise Server 15 ESPOS openvpn In progress
SUSE Linux Enterprise Server 15 LTSS openvpn In progress
SUSE Linux Enterprise Server 15 SP1 LTSS openvpn In progress
SUSE Linux Enterprise Server BCL 12 SP2 openvpn In progress
SUSE Linux Enterprise Server BCL 12 SP3 openvpn In progress
SUSE Linux Enterprise Server Business Critical Linux 15 SP1 openvpn In progress
SUSE Linux Enterprise Server for SAP Applications 12 SP3 openvpn In progress
SUSE Linux Enterprise Server for SAP Applications 12 SP4 openvpn In progress
SUSE Linux Enterprise Server for SAP Applications 12 SP5 openvpn In progress
SUSE Linux Enterprise Server for SAP Applications 15 openvpn In progress
SUSE Linux Enterprise Server for SAP Applications 15 SP1 openvpn In progress
SUSE Manager Proxy 4.0 openvpn In progress
SUSE Manager Retail Branch Server 4.0 openvpn In progress
SUSE Manager Server 4.0 openvpn In progress
SUSE OpenStack Cloud 8 openvpn In progress
SUSE OpenStack Cloud 9 openvpn In progress
SUSE OpenStack Cloud Crowbar 8 openvpn In progress
SUSE OpenStack Cloud Crowbar 9 openvpn In progress
Security Module for SUSE Linux Enterprise 11 openvpn-openssl1 Released