Privilege escalation in Yokogawa STARDOM Controllers

1) Use of hard-coded credentials

EUVDB-ID: #VU13118

Risk: High

CVSSv4.0: 8.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2018-10592

CWE-ID: CWE-798 - Use of Hard-coded Credentials

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain elevated privieleges on the target system.

The vulnerability exists due to use of hard-coded credentials. A remote unauthenticated attacker can use these credentials to gain elevated privileges and execute arbitrary code.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Update to version 4.10.

Vulnerable software versions

STARDOM FCN-500: All versions

STARDOM FCN-RTU: All versions

STARDOM FCN-100: All versions

STARDOM FCJ: All versions

CPE2.3

• cpe:2.3:a:yokogawa:stardom_fcn-500:*:*:*:*:*:*:*:*
• cpe:2.3:a:yokogawa:stardom_fcn-rtu:*:*:*:*:*:*:*:*
• cpe:2.3:a:yokogawa:stardom_fcn-100:*:*:*:*:*:*:*:*
• cpe:2.3:a:yokogawa:stardom_fcj:*:*:*:*:*:*:*:*

External links

https://ics-cert.us-cert.gov/advisories/ICSA-18-151-03

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

How the attacker can exploit this vulnerability?

The attacker would have to send a specially crafted request to the affected application in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

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