Multiple vulnerabilities in Siemens EN100 Ethernet Modules
| Risk | Medium |
| Patch available | YES |
| Number of vulnerabilities | 3 |
| CVE-ID | CVE-2019-13942 CVE-2019-13943 CVE-2019-13944 |
| CWE-ID | CWE-119 CWE-79 CWE-22 |
| Exploitation vector | Network |
| Public exploit | N/A |
| Vulnerable software Subscribe |
EN100 Ethernet module IEC 61850 variant Hardware solutions / Security hardware applicances EN100 Ethernet module PROFINET IO variant Hardware solutions / Security hardware applicances EN100 Ethernet module Modbus TCP variant Hardware solutions / Security hardware applicances EN100 Ethernet module DNP3 TCP variant Hardware solutions / Security hardware applicances EN100 Ethernet module IEC 104 variant Hardware solutions / Security hardware applicances |
| Vendor | Siemens |
Security Bulletin
This security bulletin contains information about 3 vulnerabilities.
1) Buffer overflow
EUVDB-ID: #VU23592
Risk: Medium
CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-13942
CWE-ID:
CWE-119 - Memory corruption
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a boundary error in the webserver. A remote attacker can send a specially crafted packet, trigger memory corruption and cause a denial of service condition on the target system.
Install updates from vendor's website.
Vulnerable software versionsEN100 Ethernet module IEC 61850 variant: before 4.37
EN100 Ethernet module PROFINET IO variant: All versions
EN100 Ethernet module Modbus TCP variant: All versions
EN100 Ethernet module DNP3 TCP variant: All versions
EN100 Ethernet module IEC 104 variant: All versions
External linkshttp://cert-portal.siemens.com/productcert/pdf/ssa-418979.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.
2) Cross-site scripting
EUVDB-ID: #VU23593
Risk: Low
CVSSv3.1: 5.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-13943
CWE-ID:
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Exploit availability: No
DescriptionThe disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.
The vulnerability exists due to insufficient sanitization of user-supplied data in the web interface. A remote attacker can trick the victim to follow a specially crafted link and execute arbitrary HTML and script code in user's browser in context of vulnerable website.
Successful exploitation of this vulnerability may allow a remote attacker to steal potentially sensitive information, change appearance of the web page, perform phishing and drive-by-download attacks.
MitigationInstall updates from vendor's website.
Vulnerable software versionsEN100 Ethernet module IEC 61850 variant: before 4.37
EN100 Ethernet module PROFINET IO variant: All versions
EN100 Ethernet module Modbus TCP variant: All versions
EN100 Ethernet module DNP3 TCP variant: All versions
EN100 Ethernet module IEC 104 variant: All versions
External linkshttp://cert-portal.siemens.com/productcert/pdf/ssa-418979.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.
3) Path traversal
EUVDB-ID: #VU23594
Risk: Medium
CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]
CVE-ID: CVE-2019-13944
CWE-ID:
CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform directory traversal attacks.
The vulnerability exists in the integrated web server due to input validation error when processing directory traversal sequences. A remote attacker can send a specially crafted HTTP request and obtain sensitive information about the device, such as logs and configurations.
MitigationInstall updates from vendor's website.
Vulnerable software versionsEN100 Ethernet module IEC 61850 variant: before 4.37
EN100 Ethernet module PROFINET IO variant: All versions
EN100 Ethernet module Modbus TCP variant: All versions
EN100 Ethernet module DNP3 TCP variant: All versions
EN100 Ethernet module IEC 104 variant: All versions
External linkshttp://cert-portal.siemens.com/productcert/pdf/ssa-418979.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.
