Quantum Secular Labs / Blog / Advisories
CVE-2018-9091: Kemptechnologies Loadmaster Operating System: Authentication bypass
CVE-2018-9091 is rated critical with a CVSS v3.0 base score of 9.8 and affects Kemptechnologies Loadmaster Operating System. 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 critical vulnerability in the KEMP LoadMaster Operating System (LMOS) 6.0.44 through 7.2.41.2 and Long Term Support (LTS) LMOS before 7.1.35.5 related to Session Management could allow an unauthenticated, remote attacker to bypass security protections, gain system privileges, and execute elevated commands such as ls, ps, cat, etc., thereby compromising the system. Through this remote execution, in certain cases, exposure of sensitive system data such as certificates, private keys, and other information may be possible.
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.
Affected products
- Kemptechnologies Loadmaster Operating System: from 6.0.44 up to and including 7.2.41.2; before 7.1.35.5