Privilege escalation in Lenovo XClarity Controller (XCC)

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU25354

Risk: Low

CVSSv3.1: 5 [CVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-6195

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a remote attacker to escalate privileges on the system.

The vulnerability exists due to an authorization bypass issue. A remote authenticated attacker on the local network can gain read-only access to higher-privileged information if 1) “LDAP Authentication Only with Local Authorization” mode is configured and used by XCC, and 2) a lesser privileged user logs into XCC within 1 minute of a higher privileged user logging out.

Mitigation

Install updates from vendor's website.

Vulnerable software versions

Lenovo XClarity Controller (XCC): 1.02 - 3.00

External links

http://support.lenovo.com/lu/uk/product_security/LEN-29116

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the local network (LAN).

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.