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TalosCVE-2019-5075

HistoryDec 18, 2019 - 9:15 p.m.

CVE-2019-5075

2019-12-1821:15:14

CWE-787

talos

web.nvd.nist.gov

cve-2019-5075

stack buffer overflow

wago

pfc200

pfc100

firmware

vulnerability

code execution

iocheckd

i/o-check

nvd

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.8

Confidence

High

EPSS

0.006

Percentile

78.6%

JSON

An exploitable stack buffer overflow vulnerability exists in the command line utility getcouplerdetails of WAGO PFC200 Firmware versions 03.01.07(13) and 03.00.39(12), and WAGO PFC100 Firmware version 03.00.39(12). A specially crafted set of packets sent to the iocheckd service “I/O-Check” can cause a stack buffer overflow in the sub-process getcouplerdetails, resulting in code execution. An attacker can send unauthenticated packets to trigger this vulnerability.

Affected configurations

Nvd

Node

wagopfc_200_firmwareMatch03.00.39\(12\)

wagopfc_200_firmwareMatch03.01.07\(13\)

AND

wagopfc_200Match-

Node

wagopfc_100_firmwareMatch03.00.39\(12\)

AND

wagopfc_100Match-

VendorProductVersionCPE
wagopfc_200_firmware03.00.39(12)cpe:2.3:o:wago:pfc_200_firmware:03.00.39\(12\):*:*:*:*:*:*:*
wagopfc_200_firmware03.01.07(13)cpe:2.3:o:wago:pfc_200_firmware:03.01.07\(13\):*:*:*:*:*:*:*
wagopfc_200-cpe:2.3:h:wago:pfc_200:-:*:*:*:*:*:*:*
wagopfc_100_firmware03.00.39(12)cpe:2.3:o:wago:pfc_100_firmware:03.00.39\(12\):*:*:*:*:*:*:*
wagopfc_100-cpe:2.3:h:wago:pfc_100:-:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
wago	pfc_200_firmware	03.00.39(12)	cpe:2.3:o:wago:pfc_200_firmware:03.00.39\(12\):::::::*
wago	pfc_200_firmware	03.01.07(13)	cpe:2.3:o:wago:pfc_200_firmware:03.01.07\(13\):::::::*
wago	pfc_200	-	cpe:2.3:h:wago:pfc_200:-:::::::*
wago	pfc_100_firmware	03.00.39(12)	cpe:2.3:o:wago:pfc_100_firmware:03.00.39\(12\):::::::*
wago	pfc_100	-	cpe:2.3:h:wago:pfc_100:-:::::::*

CNA Affected

[
  {
    "product": "WAGO PFC200",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Firmware version 03.01.07(13)"
      },
      {
        "status": "affected",
        "version": "Firmware version 03.00.39(12)"
      }
    ]
  },
  {
    "product": "WAGO PFC100",
    "vendor": "n/a",
    "versions": [
      {
        "status": "affected",
        "version": "Firmware version 03.00.39(12)"
      }
    ]
  }
]

References

talosintelligence.com/vulnerability_reports/TALOS-2019-0864

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

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

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

9.8

Confidence

High

EPSS

0.006

Percentile

78.6%

JSON

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