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TalosCVE-2019-5079

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

CVE-2019-5079

2019-12-1821:15:14

CWE-787

talos

web.nvd.nist.gov

cve-2019-5079

heap buffer overflow

wago

pfc200

pfc100

firmware

vulnerability

code execution

nvd

security

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

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

9.7

Confidence

High

EPSS

0.006

Percentile

78.6%

JSON

An exploitable heap buffer overflow vulnerability exists in the iocheckd service “I/O-Check” functionality 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 can cause a heap buffer overflow, potentially 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-2019-0871

CVSS2

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

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

9.7

Confidence

High

EPSS

0.006

Percentile

78.6%

JSON

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