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CVE-2018-11541: Ribboncommunications Sbc Swe Lite Web: Privilege escalation

CVE-2018-11541 is rated critical with a CVSS v3.0 base score of 9.8 and affects Ribboncommunications Sbc Swe Lite Web, along with 2 other products in NVD’s configuration data. Per its scoring, it can be exploited over the network, without authentication, without any user interaction. The scored impact on confidentiality, integrity and availability is the highest available.

Vulnerability description

A root privilege escalation vulnerability in the Sonus SBC 1000 / SBC 2000 / SBC SWe Lite web interface allows unauthorised access to privileged content via an unspecified vector. It affects the 1000 and 2000 devices 6.0.x up to Build 446, 6.1.x up to Build 492, and 7.0.x up to Build 485. It affects the SWe Lite devices 6.1.x up to Build 111 and 7.0.x up to Build 140.

Severity breakdown

CVSS v3.0 9.8: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack vector: Network. Exploitable remotely over the network, with no need for local or physical access.
Attack complexity: Low. No special conditions; the attack can be repeated reliably.
Privileges required: None. No account or prior access is needed.
User interaction: None. No action from any user is needed.
Scope: Unchanged. Impact stays within the vulnerable component.
Confidentiality impact: High. Total loss of confidentiality; sensitive data can be fully disclosed.
Integrity impact: High. Total loss of integrity; data or system state can be fully modified.
Availability impact: High. Total loss of availability; the component can be shut down.

Underlying weakness

CWE-862: Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Affected products

Ribboncommunications Sbc Swe Lite Web: 6.1.0; 7.0.0
Ribboncommunications Sonus Sbc 1000 Firmware: 6.0.0; 6.1.0; 7.0.0
Ribboncommunications Sonus Sbc 2000 Firmware: 6.0.0; 6.1.0; 7.0.0