VulnerabilityModified
CVE-2021-44222
A vulnerability has been identified in SIMATIC eaSie Core Package (All versions < V22.00).
CRITICAL 9.1EPSS 1.30%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.30%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
A vulnerability has been identified in SIMATIC eaSie Core Package (All versions < V22.00). The underlying MQTT service of affected systems does not perform authentication in the default configuration. This could allow an unauthenticated remote attacker to send arbitrary messages to the service and thereby issue arbitrary requests in the affected system.
- CVSS 3.1
- 9.1 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 1.30% probability · 69th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-306
- Affected
- siemens/simatic easie core package
- Source
- productcert@siemens.com
References
- https://cert-portal.siemens.com/productcert/pdf/ssa-580125.pdfPatch, Vendor Advisory
- https://cert-portal.siemens.com/productcert/pdf/ssa-580125.pdfPatch, Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.