Vulnerability Details : CVE-2018-8836
Wago 750 Series PLCs with firmware version 10 and prior include a remote attack may take advantage of an improper implementation of the 3 way handshake during a TCP connection affecting the communications with commission and service tools. Specially crafted packets may also be sent to Port 2455/TCP/IP, used in Codesys management software, which may result in a denial-of-service condition of communications with commissioning and service tools.
Vulnerability category: Denial of service
Products affected by CVE-2018-8836
- cpe:2.3:o:wago:750-880_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:wago:750-881_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:wago:750-852_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:wago:750-882_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:wago:750-885_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:wago:750-831_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:wago:750-889_firmware:*:*:*:*:*:*:*:*
- cpe:2.3:o:wago:750-829_firmware:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2018-8836
0.29%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 66 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2018-8836
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:N/I:N/A:P |
10.0
|
2.9
|
NIST | |
|
5.3
|
MEDIUM | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
3.9
|
1.4
|
NIST |
CWE ids for CVE-2018-8836
-
The product does not release or incorrectly releases a resource before it is made available for re-use.Assigned by:
- ics-cert@hq.dhs.gov (Secondary)
- nvd@nist.gov (Primary)
References for CVE-2018-8836
-
https://ics-cert.us-cert.gov/advisories/ICSA-18-088-01
WAGO 750 Series | CISAThird Party Advisory;US Government Resource
-
http://www.securityfocus.com/bid/103726
Multiple WAGO Products CVE-2018-8836 Denial of Service VulnerabilityThird Party Advisory;VDB Entry
-
https://www.wago.com/medias/Vulnerability-in-the-WAGO-Ethernet-TCP-IP-driver.pdf?context=bWFzdGVyfHJvb3R8MjgxNDk0fGFwcGxpY2F0aW9uL3BkZnxoOTcvaDhkLzkxNTAyMjMyMjA3NjYucGRmfGRlNWQ4ODc0NTE5M2UyNTUwNTIyNDRlOWFkNWI2YjNkMzg0YTVhYzlmYTBjNzM4MDdmNmYzOTM5M2ZlMGEzNzE
Vendor Advisory
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