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[email protected]CVE-2018-8836

HistoryApr 03, 2018 - 1:29 p.m.

CVE-2018-8836

2018-04-0313:29:00

CWE-404

[email protected]

web.nvd.nist.gov

wago

750 series

plcs

firmware

vulnerability

remote attack

tcp

communication

denial-of-service

nvd

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

5.2 Medium

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.003 Low

EPSS

Percentile

69.2%

JSON

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.

Affected configurations

NVD

Node

wago750-880_firmwareRange≤10

AND

wago750-880Match-

Node

wago750-881_firmwareRange≤10

AND

wago750-881Match-

Node

wago750-852_firmwareRange≤10

AND

wago750-852Match-

Node

wago750-882_firmwareRange≤10

AND

wago750-882Match-

Node

wago750-885Match-

AND

wago750-885_firmwareRange≤10

Node

wago750-831Match-

AND

wago750-831_firmwareRange≤10

Node

wago750-889Match-

AND

wago750-889_firmwareRange≤10

Node

wago750-829Match-

AND

wago750-829_firmwareRange≤10

CPENameOperatorVersion
wago:750-880_firmwarewago 750-880 firmwarele10

CPE	Name	Operator	Version
wago:750-880_firmware	wago 750-880 firmware	le	10

CNA Affected

[
  {
    "product": "WAGO 750 Series",
    "vendor": "WAGO",
    "versions": [
      {
        "status": "affected",
        "version": "750-880 firmware version 10 and prior"
      },
      {
        "status": "affected",
        "version": "750-881 firmware version 10 and prior"
      },
      {
        "status": "affected",
        "version": "750-852 firmware version 10 and prior"
      },
      {
        "status": "affected",
        "version": "750-882 firmware version 10 and prior"
      },
      {
        "status": "affected",
        "version": "750-885 firmware version 10 and prior"
      },
      {
        "status": "affected",
        "version": "750-831 firmware version 10 and prior"
      },
      {
        "status": "affected",
        "version": "750-889 firmware version 10 and prior"
      },
      {
        "status": "affected",
        "version": "750-829 firmware version 10 and prior"
      }
    ]
  }
]

References

www.securityfocus.com/bid/103726

ics-cert.us-cert.gov/advisories/ICSA-18-088-01

www.wago.com/medias/Vulnerability-in-the-WAGO-Ethernet-TCP-IP-driver.pdf?context=bWFzdGVyfHJvb3R8MjgxNDk0fGFwcGxpY2F0aW9uL3BkZnxoOTcvaDhkLzkxNTAyMjMyMjA3NjYucGRmfGRlNWQ4ODc0NTE5M2UyNTUwNTIyNDRlOWFkNWI2YjNkMzg0YTVhYzlmYTBjNzM4MDdmNmYzOTM5M2ZlMGEzNzE

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

LOW

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

5.2 Medium

AI Score

Confidence

High

5 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:L/Au:N/C:N/I:N/A:P

0.003 Low

EPSS

Percentile

69.2%

JSON

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