Denial of service in Siemens SIMATIC S7-200 SMART Devices
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 1 |
| CVE-ID | CVE-2024-43647 |
| CWE-ID | CWE-400 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software |
SIMATIC S7-200 SMART CPU CR40 Hardware solutions / Firmware SIMATIC S7-200 SMART CPU CR60 Hardware solutions / Firmware SIMATIC S7-200 SMART CPU SR20 Hardware solutions / Firmware SIMATIC S7-200 SMART CPU SR30 Hardware solutions / Firmware SIMATIC S7-200 SMART CPU SR40 Hardware solutions / Firmware SIMATIC S7-200 SMART CPU SR60 Hardware solutions / Firmware SIMATIC S7-200 SMART CPU ST20 Hardware solutions / Firmware SIMATIC S7-200 SMART CPU ST30 Hardware solutions / Firmware SIMATIC S7-200 SMART CPU ST40 Hardware solutions / Firmware SIMATIC S7-200 SMART CPU ST60 Hardware solutions / Firmware |
| Vendor | Siemens |
Security Bulletin
This security bulletin contains one medium risk vulnerability.
1) Resource exhaustion
EUVDB-ID: #VU97146
Risk: Medium
CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]
CVE-ID: CVE-2024-43647
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 application does not properly control consumption of internal resources within handling of TCP packets. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionsSIMATIC S7-200 SMART CPU CR40: All versions
SIMATIC S7-200 SMART CPU CR60: All versions
SIMATIC S7-200 SMART CPU SR20: All versions
SIMATIC S7-200 SMART CPU SR30: All versions
SIMATIC S7-200 SMART CPU SR40: All versions
SIMATIC S7-200 SMART CPU SR60: All versions
SIMATIC S7-200 SMART CPU ST20: All versions
SIMATIC S7-200 SMART CPU ST30: All versions
SIMATIC S7-200 SMART CPU ST40: All versions
SIMATIC S7-200 SMART CPU ST60: All versions
CPE2.3- cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr40:*:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_cr60:*:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr20:*:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr30:*:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr40:*:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_sr60:*:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st20:*:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st30:*:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st40:*:*:*:*:*:*:*:*
- cpe:2.3:h:siemens:simatic_s7-200_smart_cpu_st60:*:*:*:*:*:*:*:*
https://cert-portal.siemens.com/productcert/html/ssa-969738.html
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.
