Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 1 |
CVE-ID | CVE-2019-13940 |
CWE-ID | CWE-400 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
SIMATIC S7-1200 Hardware solutions / Firmware SIMATIC S7-300 PN/DP Hardware solutions / Firmware SIMATIC S7-400 PN/DP V6 Server applications / SCADA systems SIMATIC S7-400 PN/DP V7 Server applications / SCADA systems |
Vendor | Siemens |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
EUVDB-ID: #VU25258
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-13940
CWE-ID:
CWE-400 - Resource exhaustion
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to uncontrolled resource consumption. A remote attacker can send a specially crafted HTTP request to Ports 80/TCP and 443/TCP, trigger resource exhaustion and perform a denial of service (DoS) attack on the web server.
MitigationInstall updates from vendor's website.
Vulnerable software versionsSIMATIC S7-1200: 2.00 - 4.0
SIMATIC S7-400 PN/DP V6: All versions
SIMATIC S7-400 PN/DP V7: All versions
SIMATIC S7-300 PN/DP: All versions
External linkshttp://cert-portal.siemens.com/productcert/pdf/ssa-431678.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.