Information disclosure in Siemens SIMATIC WinCC and SIMATIC PCS 7
| Risk | Low |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2021-40360 |
| CWE-ID | CWE-200 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
SIMATIC PCS 7 Server applications / SCADA systems Siemens SIMATIC WinCC Server applications / SCADA systems |
| Vendor | Siemens |
Security Bulletin
This security bulletin contains one low risk vulnerability.
1) Information disclosure
EUVDB-ID: #VU60534
Risk: Low
CVSSv3.1: 5.5 [CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-40360
CWE-ID:
CWE-200 - Information exposure
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to gain access to potentially sensitive information.
The vulnerability exists due to excessive data output by the application. A remote authenticated attacker can brute force the password hash and use it to login to the server.
MitigationInstall updates from vendor's website.
Vulnerable software versionsSIMATIC PCS 7: 8.0 - 9.1
Siemens SIMATIC WinCC: 7.0 - 17
External linkshttp://cert-portal.siemens.com/productcert/pdf/ssa-914168.pdf
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote authenticated user 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.
