Hardcoded credentials in Siemens SIMATIC WinCC and PSC 7 SCADA systems

1) Hardcoded credentials

EUVDB-ID: #VU6166

Risk: High

CVSSv4.0: 9.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:A/U:Amber]

CVE-ID: CVE-2010-2772

CWE-ID: CWE-259 - Use of Hard-coded Password

Exploit availability: No

Description

The vulnerability allows a local user to obtain hardcoded credentials.

The vulnerability exists due to usage of hardcoded password to access back-end database. A local user can obtain password and gain unaithorized access SCADA system.

Successful exploitation of the vulnerability may allow an attacker to gain complete control over the industrial process.

Note: this vulnerability is being actively exploited by the Stuxnet malware.

Mitigation

Follow vendor recommendations to resolve this issue.

Vulnerable software versions

SIMATIC PCS 7: All versions

Siemens SIMATIC WinCC: All versions

CPE2.3

• cpe:2.3:a:siemens:simatic_pcs_7:*:*:*:*:*:*:*:*
• cpe:2.3:a:siemens:siemens_simatic_wincc:*:*:*:*:*:*:*:*

External links

https://support.industry.siemens.com/cs/document/43876783/simatic-wincc-simatic-pcs-7%3A-information...

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

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.

The attacker would have to login to the system and perform certain actions in order to exploit this vulnerability.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.