CVE-2021-40363

2022-02-0915:17:04

CWE-538

siemens

www.cve.org

7.6 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

12.6%

JSON

A vulnerability has been identified in SIMATIC PCS 7 V8.2 (All versions), SIMATIC PCS 7 V9.0 (All versions), SIMATIC PCS 7 V9.1 (All versions < V9.1 SP1), SIMATIC WinCC V15 and earlier (All versions < V15 SP1 Update 7), SIMATIC WinCC V16 (All versions < V16 Update 5), SIMATIC WinCC V17 (All versions < V17 Update 2), SIMATIC WinCC V17 (All versions <= V17 Update 4), SIMATIC WinCC V7.4 (All versions < V7.4 SP1 Update 19), SIMATIC WinCC V7.5 (All versions < V7.5 SP2 Update 6). The affected component stores the credentials of a local system account in a potentially publicly accessible project file using an outdated cipher algorithm. An attacker may use this to brute force the credentials and take over the system.

CNA Affected

[
  {
    "product": "SIMATIC PCS 7 V8.2",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions"
      }
    ]
  },
  {
    "product": "SIMATIC PCS 7 V9.0",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions"
      }
    ]
  },
  {
    "product": "SIMATIC PCS 7 V9.1",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V9.1 SP1"
      }
    ]
  },
  {
    "product": "SIMATIC WinCC V15 and earlier",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V15 SP1 Update 7"
      }
    ]
  },
  {
    "product": "SIMATIC WinCC V16",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V16 Update 5"
      }
    ]
  },
  {
    "product": "SIMATIC WinCC V17",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V17 Update 2"
      }
    ]
  },
  {
    "product": "SIMATIC WinCC V17",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions <= V17 Update 4"
      }
    ]
  },
  {
    "product": "SIMATIC WinCC V7.4",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V7.4 SP1 Update 19"
      }
    ]
  },
  {
    "product": "SIMATIC WinCC V7.5",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V7.5 SP2 Update 6"
      }
    ]
  }
]

References

cert-portal.siemens.com/productcert/pdf/ssa-914168.pdf