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: Pending

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 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H 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
SUSE Bugzilla entry: 1085803 [NEW]

No SUSE Security Announcements cross referenced.


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Please note that this evaluation state might be work in progress, incomplete or outdated.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
SUSE Linux Enterprise Desktop 12 SP2 openvpn Unsupported
SUSE Linux Enterprise Desktop 12 SP3 openvpn Affected
SUSE Linux Enterprise Server 11 SP3 LTSS openvpn Affected
SUSE Linux Enterprise Server 11 SP4 openvpn Affected
SUSE Linux Enterprise Server 12 GA LTSS openvpn Affected
SUSE Linux Enterprise Server 12 SP1 LTSS openvpn Affected
SUSE Linux Enterprise Server 12 SP2 openvpn Unsupported
SUSE Linux Enterprise Server 12 SP3 openvpn Affected