fkie_cve-2021-42561
Vulnerability from fkie_nvd
Published
2022-01-12 19:15
Modified
2024-11-21 06:27
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
An issue was discovered in CALDERA 2.8.1. When activated, the Human plugin passes the unsanitized name parameter to a python "os.system" function. This allows attackers to use shell metacharacters (e.g., backticks "``" or dollar parenthesis "$()" ) in order to escape the current command and execute arbitrary shell commands.
References
cve@mitre.orghttps://github.com/DrunkenShells/Disclosures/tree/master/CVE-2021-42561-Command%20Injection%20Via%20the%20Human%20Plugin-MITRE%20CalderaExploit, Third Party Advisory
cve@mitre.orghttps://github.com/mitre/caldera/releasesRelease Notes, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2021-42561-Command%20Injection%20Via%20the%20Human%20Plugin-MITRE%20CalderaExploit, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://github.com/mitre/caldera/releasesRelease Notes, Third Party Advisory
Impacted products
Vendor Product Version
mitre caldera *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
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          "cpeMatch": [
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              "criteria": "cpe:2.3:a:mitre:caldera:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "E96BD638-79D7-4128-B35D-584560A5FB91",
              "versionEndIncluding": "2.8.1",
              "vulnerable": true
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          "operator": "OR"
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "An issue was discovered in CALDERA 2.8.1. When activated, the Human plugin passes the unsanitized name parameter to a python \"os.system\" function. This allows attackers to use shell metacharacters (e.g., backticks \"``\" or dollar parenthesis \"$()\" ) in order to escape the current command and execute arbitrary shell commands."
    },
    {
      "lang": "es",
      "value": "Se ha detectado un problema en CALDERA versi\u00f3n 2.8.1. Cuando es activado, el plugin Human pasa el par\u00e1metro de nombre sin sanear a una funci\u00f3n de python \"os.system\". Esto permite a atacantes usar metacaracteres de la shell (por ejemplo, los puntos suspensivos \"``\" o los par\u00e9ntesis de d\u00f3lar \"$()\" ) para escapar del comando actual y ejecutar comandos arbitrarios de la shell"
    }
  ],
  "id": "CVE-2021-42561",
  "lastModified": "2024-11-21T06:27:48.953",
  "metrics": {
    "cvssMetricV2": [
      {
        "acInsufInfo": false,
        "baseSeverity": "HIGH",
        "cvssData": {
          "accessComplexity": "LOW",
          "accessVector": "NETWORK",
          "authentication": "SINGLE",
          "availabilityImpact": "COMPLETE",
          "baseScore": 9.0,
          "confidentialityImpact": "COMPLETE",
          "integrityImpact": "COMPLETE",
          "vectorString": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
          "version": "2.0"
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        "exploitabilityScore": 8.0,
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        "obtainOtherPrivilege": false,
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        "source": "nvd@nist.gov",
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          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
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        "impactScore": 5.9,
        "source": "nvd@nist.gov",
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  },
  "published": "2022-01-12T19:15:08.330",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
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        "Third Party Advisory"
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      "url": "https://github.com/DrunkenShells/Disclosures/tree/master/CVE-2021-42561-Command%20Injection%20Via%20the%20Human%20Plugin-MITRE%20Caldera"
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  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-74"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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