SB2018122404 - Privilege escalation in Dell EMC iDRAC

Description

This security bulletin contains information about 2 vulnerabilities.

1) Privilege escalation (CVE-ID: CVE-2018-15774)

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

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote authenticated attacker to gain elevated privileges.

The vulnerability exists due to a permissions check flaw in the Redfish interface. A remote authenticated malicious iDRAC user with operator privileges can gain administrator access/

2) Error handling (CVE-ID: CVE-2018-15776)

CWE-ID: CWE-388 - Error Handling

CVSSv4: CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a physical attacker to gain elevated privileges.

The vulnerability exists due to improper error handling. A physical attacker with operator privileges can gain elevated privileges and get access to the u-boot shell.

Remediation

Install update from vendor's website.

References

• https://www.dell.com/support/article/us/en/19/sln315190/dell-emc-idrac-multiple-vulnerabilities-cve-2018-15774-and-cve-2018-15776-?lang=en