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cvelistSiemensCVELIST:CVE-2023-33920
HistoryJun 13, 2023 - 8:17 a.m.

CVE-2023-33920

2023-06-1308:17:19
CWE-798
siemens
www.cve.org
3
cve-2023-33920
vulnerability
cp-8031
cp-8050
hash
hard-coded
exploit
uart console
physical access

CVSS3

6.8

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

AI Score

6.6

Confidence

High

EPSS

0.001

Percentile

18.6%

A vulnerability has been identified in CP-8031 MASTER MODULE (All versions < CPCI85 V05), CP-8050 MASTER MODULE (All versions < CPCI85 V05). The affected devices contain the hash of the root password in a hard-coded form, which could be exploited for UART console login to the device. An attacker with direct physical access could exploit this vulnerability.

CNA Affected

[
  {
    "vendor": "Siemens",
    "product": "CP-8031 MASTER MODULE",
    "versions": [
      {
        "version": "All versions < CPCI85 V05",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  },
  {
    "vendor": "Siemens",
    "product": "CP-8050 MASTER MODULE",
    "versions": [
      {
        "version": "All versions < CPCI85 V05",
        "status": "affected"
      }
    ],
    "defaultStatus": "unknown"
  }
]

CVSS3

6.8

Attack Vector

PHYSICAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C

AI Score

6.6

Confidence

High

EPSS

0.001

Percentile

18.6%

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