CVE-2021-21001 (GCVE-0-2021-21001)

Vulnerability from cvelistv5 – Published: 2021-05-24 11:05 – Updated: 2024-09-16 16:19
VLAI?
Title
WAGO: PFC200 Access to files outside the home directory
Summary
On WAGO PFC200 devices in different firmware versions with special crafted packets an authorised attacker with network access to the device can access the file system with higher privileges.
Severity ?
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Assigner
References
Impacted products
Vendor Product Version
WAGO Series PFC200 Controller Affected: 750-823 , ≤ FW07 (custom)
Affected: 750-829 , ≤ FW14 (custom)
Affected: 750-831/000-00x , ≤ FW14 (custom)
Affected: 750-832/000-00x , ≤ FW06 (custom)
Affected: 750-852 , ≤ FW14 (custom)
Affected: 750-862 , ≤ FW07 (custom)
Affected: 750-880/0xx-xxx , ≤ FW15 (custom)
Affected: 750-881 , ≤ FW14 (custom)
Affected: 750-882 , ≤ FW14 (custom)
Affected: 750-885/0xx-xxx , ≤ FW14 (custom)
Affected: 750-889 , ≤ FW14 (custom)
Affected: 750-890/0xx-xxx , ≤ FW07 (custom)
Affected: 750-891 , ≤ FW07 (custom)
Affected: 750-893 , ≤ FW07 (custom)
Create a notification for this product.
WAGO Series Ethernet Controller Affected: 750-8202/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8203/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8204/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8206/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8207/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8208/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8210/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8211/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8212/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8213/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8214/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8216/xxx-xxx , < 03.06.19 (18) (custom)
Affected: 750-8217/xxx-xxx , < 03.06.19 (18) (custom)
Create a notification for this product.
Date Public ?
2021-05-20 00:00
Credits
These vulnerabilities were reported by JSC Positive Technologies (Vyacheslav Moskvin, Anton Dorfman, Sergey Fedonin, Ivan Kurnakov, Denis Goryushev). Coordination done by CERT@VDE.
Show details on NVD website
To clipboard 

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      "descriptions": "[{\"lang\": \"en\", \"value\": \"On WAGO PFC200 devices in different firmware versions with special crafted packets an authorised attacker with network access to the device can access the file system with higher privileges.\"}, {\"lang\": \"es\", \"value\": \"En los dispositivos WAGO PFC200 en diferentes versiones de firmware con paquetes especiales dise\\u00f1ados, un atacante autorizado con acceso de red al dispositivo puede acceder al sistema de archivos con mayores privilegios\"}]",
      "id": "CVE-2021-21001",
      "lastModified": "2024-11-21T05:47:22.780",
      "metrics": "{\"cvssMetricV31\": [{\"source\": \"info@cert.vde.com\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H\", \"baseScore\": 9.1, \"baseSeverity\": \"CRITICAL\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"HIGH\", \"userInteraction\": \"NONE\", \"scope\": \"CHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"HIGH\", \"availabilityImpact\": \"HIGH\"}, \"exploitabilityScore\": 2.3, \"impactScore\": 6.0}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N\", \"baseScore\": 6.5, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"LOW\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"HIGH\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"exploitabilityScore\": 2.8, \"impactScore\": 3.6}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:S/C:P/I:N/A:N\", \"baseScore\": 4.0, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"SINGLE\", \"confidentialityImpact\": \"PARTIAL\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"NONE\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 8.0, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
      "published": "2021-05-24T11:15:07.980",
      "references": "[{\"url\": \"https://cert.vde.com/en-us/advisories/vde-2021-014\", \"source\": \"info@cert.vde.com\", \"tags\": [\"Third Party Advisory\"]}, {\"url\": \"https://cert.vde.com/en-us/advisories/vde-2021-014\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Third Party Advisory\"]}]",
      "sourceIdentifier": "info@cert.vde.com",
      "vulnStatus": "Modified",
      "weaknesses": "[{\"source\": \"info@cert.vde.com\", \"type\": \"Secondary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-22\"}]}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-22\"}]}]"
    },
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Party Advisory\"]},{\"url\":\"https://cert.vde.com/en-us/advisories/vde-2021-014\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Third Party Advisory\"]}]}}"
  }
}


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Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.