JVNDB-2021-000093

Vulnerability from jvndb - Published: 2021-10-20 08:38 - Updated:2021-12-17 08:36
Severity
9.8 (Critical) - cvssV3_0 - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Summary
Movable Type XMLRPC API vulnerable to OS command injection
Details
Movable Type XMLRPC API provided by Six Apart Ltd. contains an OS command injection vulnerability (CWE-78). Sending a specially crafted message by POST method to Movavle Type XMLRPC API may allow arbitrary OS command execution. [Updated on 2021 November 10] As of 2021 November 10, a Proof-of-Concept (PoC) code exploitning this vulnerability has already been made public and attacks exploting this vulnerability has been observed in the wild. Étienne Gervais, Charl-Alexandre Le Brun and Chatwork Co., Ltd. reported this vulnerability to Six Apart Ltd. and coordinated. Six Apart Ltd. reported this vulnerability to JPCERT/CC to notify users of the solution through JVN.
References
Impacted products
Show details on JVN DB website
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{
  "@rdf:about": "https://jvndb.jvn.jp/en/contents/2021/JVNDB-2021-000093.html",
  "dc:date": "2021-12-17T17:36+09:00",
  "dcterms:issued": "2021-10-20T17:38+09:00",
  "dcterms:modified": "2021-12-17T17:36+09:00",
  "description": "Movable Type XMLRPC API provided by Six Apart Ltd. contains an OS command injection vulnerability (CWE-78).\r\nSending a specially crafted message by POST method to Movavle Type XMLRPC API may allow arbitrary OS command execution.\r\n\r\n[Updated on 2021 November 10]\r\nAs of 2021 November 10, a Proof-of-Concept (PoC) code exploitning this vulnerability has already been made public and attacks exploting this vulnerability has been observed in the wild.\r\n\r\n\u0026#201;tienne Gervais, Charl-Alexandre Le Brun and Chatwork Co., Ltd. reported this vulnerability to Six Apart Ltd. and coordinated.\r\nSix Apart Ltd. reported this vulnerability to JPCERT/CC to notify users of the solution through JVN.",
  "link": "https://jvndb.jvn.jp/en/contents/2021/JVNDB-2021-000093.html",
  "sec:cpe": {
    "#text": "cpe:/a:sixapart:movable_type",
    "@product": "Movable Type",
    "@vendor": "Six Apart, Ltd.",
    "@version": "2.2"
  },
  "sec:cvss": [
    {
      "@score": "7.5",
      "@severity": "High",
      "@type": "Base",
      "@vector": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
      "@version": "2.0"
    },
    {
      "@score": "9.8",
      "@severity": "Critical",
      "@type": "Base",
      "@vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "@version": "3.0"
    }
  ],
  "sec:identifier": "JVNDB-2021-000093",
  "sec:references": [
    {
      "#text": "http://jvn.jp/en/jp/JVN41119755/index.html",
      "@id": "JVN#41119755",
      "@source": "JVN"
    },
    {
      "#text": "https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20837",
      "@id": "CVE-2021-20837",
      "@source": "CVE"
    },
    {
      "#text": "https://nvd.nist.gov/vuln/detail/CVE-2021-20837",
      "@id": "CVE-2021-20837",
      "@source": "NVD"
    },
    {
      "#text": "https://www.ipa.go.jp/security/ciadr/vul/20211020-jvn.html",
      "@id": "Security Alert for Vulnerability in Movable Type (JVN#41119755) (in Japanese)",
      "@source": "IPA SECURITY ALERTS"
    },
    {
      "#text": "https://www.jpcert.or.jp/english/at/2021/at210047.html",
      "@id": "Alert Regarding Vulnerability (CVE-2021-20837) in Movable Type XMLRPC API",
      "@source": "JPCERT-WR"
    },
    {
      "#text": "https://www.ipa.go.jp/en/security/vulnerabilities/cwe.html",
      "@id": "CWE-78",
      "@title": "OS Command Injection(CWE-78)"
    }
  ],
  "title": "Movable Type XMLRPC API vulnerable to OS command injection"
}



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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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