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cve[email protected]CVE-2018-7790
HistoryAug 29, 2018 - 9:29 p.m.

CVE-2018-7790

2018-08-2921:29:01
CWE-294
web.nvd.nist.gov
45
2
cve-2018-7790
information security
vulnerability
schneider electric
modicon m221
authentication
nvd

9.8 High

CVSS3

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

9.3 High

AI Score

Confidence

High

7.5 High

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.002 Low

EPSS

Percentile

60.2%

An Information Management Error vulnerability exists in Schneider Electric’s Modicon M221 product (all references, all versions prior to firmware V1.6.2.0). The vulnerability allows unauthorized users to replay authentication sequences. If an attacker exploits this vulnerability and connects to a Modicon M221, the attacker can upload the original program from the PLC.

Affected configurations

NVD
Node
schneider-electricmodicon_m221_firmwareRange<1.6.2.0
AND
schneider-electricmodicon_m221Match-

CNA Affected

[
  {
    "product": "Modicon M221, all references, all versions prior to firmware V1.6.2.0",
    "vendor": "Schneider Electric SE",
    "versions": [
      {
        "status": "affected",
        "version": "Modicon M221, all references, all versions prior to firmware V1.6.2.0"
      }
    ]
  }
]

Social References

More

9.8 High

CVSS3

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

9.3 High

AI Score

Confidence

High

7.5 High

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.002 Low

EPSS

Percentile

60.2%