Privilege escalation in Lenovo XClarity Controller (XCC)

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU25354

Risk: Low

CVSSv4.0: 4.6 [CVSS:4.0/AV:A/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

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

CPE2.3

• cpe:2.3:h:lenovo:lenovo_xclarity_controller_xcc:1.02:*:*:*:*:*:*:*
• cpe:2.3:h:lenovo:lenovo_xclarity_controller_xcc:1.03:*:*:*:*:*:*:*
• cpe:2.3:h:lenovo:lenovo_xclarity_controller_xcc:1.05:*:*:*:*:*:*:*

External links

https://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.