CVE-2021-42029

2022-04-1209:07:30

CWE-284

siemens

www.cve.org

7.9 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

12.7%

JSON

A vulnerability has been identified in SIMATIC STEP 7 (TIA Portal) V15 (All versions), SIMATIC STEP 7 (TIA Portal) V16 (All versions < V16 Update 5), SIMATIC STEP 7 (TIA Portal) V17 (All versions < V17 Update 2). An attacker could achieve privilege escalation on the web server of certain devices due to improper access control vulnerability in the engineering system software. The attacker needs to have direct access to the impacted web server.

CNA Affected

[
  {
    "product": "SIMATIC STEP 7 (TIA Portal) V15",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions"
      }
    ]
  },
  {
    "product": "SIMATIC STEP 7 (TIA Portal) V16",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V16 Update 5"
      }
    ]
  },
  {
    "product": "SIMATIC STEP 7 (TIA Portal) V17",
    "vendor": "Siemens",
    "versions": [
      {
        "status": "affected",
        "version": "All versions < V17 Update 2"
      }
    ]
  }
]

References

cert-portal.siemens.com/productcert/pdf/ssa-350757.pdf