Multiple vulnerabilities in Siemens SCALANCE X-200 and SCALANCE X-200IRT Switches
| Risk | High |
| Patch available | NO |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2020-28391 CVE-2020-15799 CVE-2020-25226 |
| CWE-ID | CWE-321 CWE-306 CWE-122 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
SCALANCE X-200 Hardware solutions / Routers & switches, VoIP, GSM, etc SCALANCE X-200 IRT Hardware solutions / Routers & switches, VoIP, GSM, etc |
| Vendor | Siemens |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Use of Hard-coded Cryptographic Key
EUVDB-ID: #VU49497
Risk: High
CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:U/RL:U/RC:C]
CVE-ID: CVE-2020-28391
CWE-ID:
CWE-321 - Use of Hard-coded Cryptographic Key
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to presence of a hard-coded cryptographic key when using the device with C-PLUG. A remote attacker can create a man-in-the-middle situation and decrypt previously captured traffic.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsSCALANCE X-200: All versions
SCALANCE X-200 IRT: All versions
External linkshttp://cert-portal.siemens.com/productcert/pdf/ssa-274900.pdf
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
2) Missing Authentication for Critical Function
EUVDB-ID: #VU49499
Risk: Medium
CVSSv3.1: 6.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2020-15799
CWE-ID:
CWE-306 - Missing Authentication for Critical Function
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to missing authentication for critical function. A remote attacker can use special URLs from integrated web server of the affected products and reboot the device.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsSCALANCE X-200: All versions
SCALANCE X-200 IRT: All versions
External linkshttp://cert-portal.siemens.com/productcert/pdf/ssa-139628.pdf
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
3) Heap-based buffer overflow
EUVDB-ID: #VU49501
Risk: High
CVSSv3.1: 9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:U/RC:C]
CVE-ID: CVE-2020-25226
CWE-ID:
CWE-122 - Heap-based Buffer Overflow
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the web server. A remote attacker can send a specially crafted request, trigger heap-based buffer overflow and execute arbitrary code on the target system.
Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.
MitigationCybersecurity Help is currently unaware of any official solution to address this vulnerability.
Vulnerable software versionsSCALANCE X-200: All versions
SCALANCE X-200 IRT: All versions
External linkshttp://cert-portal.siemens.com/productcert/pdf/ssa-139628.pdf
Q & A
Can this vulnerability be exploited remotely?
Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.
How the attacker can exploit this vulnerability?
The attacker would have to send a specially crafted request to the affected device in order to exploit this vulnerability.
Is there known malware, which exploits this vulnerability?
No. We are not aware of malware exploiting this vulnerability.
