Risk | High |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2021-27395 |
CWE-ID | CWE-306 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
SIMATIC Process Historian 2013 Other software / Other software solutions SIMATIC Process Historian 2019 Other software / Other software solutions SIMATIC Process Historian 2020 Other software / Other software solutions SIMATIC Process Historian 2014 Other software / Other software solutions |
Vendor | Siemens |
Security Bulletin
This security bulletin contains one high risk vulnerability.
EUVDB-ID: #VU57343
Risk: High
CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2021-27395
CWE-ID:
CWE-306 - Missing Authentication for Critical Function
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to bypass authentication process.
The vulnerability exists due to the software that is used for critical functionalities lacks authentication. A remote attacker can maliciously insert, modify or delete data.
MitigationInstall updates from vendor's website.
Vulnerable software versionsSIMATIC Process Historian 2013: All versions
SIMATIC Process Historian 2019: All versions
SIMATIC Process Historian 2020: All versions
SIMATIC Process Historian 2014: before SP3 Update 6
External linkshttp://cert-portal.siemens.com/productcert/pdf/ssa-766247.pdf
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.