CVE-2021-20839

CVSS V2 Medium 4.3 CVSS V3 Medium 6.5
Description
Office Server Document Converter V7.2MR4 and earlier and V7.1MR7 and earlier allows a remote unauthenticated attacker to conduct an XML External Entity (XXE) attack to cause a denial of service (DoS) condition to the other servers by processing a specially crafted XML document.
Overview
  • CVE ID
  • CVE-2021-20839
  • Assigner
  • vultures@jpcert.or.jp
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-11-01T02:15:06
  • Last Modified Date
  • 2021-11-08T19:04:52
Weakness Enumerations
CWE URL
CWE-611 http://cwe.mitre.org/data/definitions/611.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:antennahouse:office_server_document_converter:*:*:*:*:*:*:*:* 1 OR 5.2
cpe:2.3:a:antennahouse:office_server_document_converter:5.2:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:6.0:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:6.0:mr1:*:*:*:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:6.0:mr2:*:*:*:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:6.1:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:6.1:mr2:*:*:*:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:6.1:mr2:*:*:pro:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:6.1:mr3:*:*:*:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:6.1:mr4:*:*:*:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:7.0:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:7.0:mr1:*:*:*:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:7.0:mr2:*:*:*:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:7.0:mr3:*:*:*:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:7.1:-:*:*:*:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:7.1:mr1:*:*:*:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:7.1:mr2:*:*:*:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:7.1:mr3:*:*:*:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:7.2:*:*:*:*:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:7.2:mr1:*:*:*:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:7.2:mr2:*:*:*:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:7.2:mr3:*:*:*:*:*:* 1 OR
cpe:2.3:a:antennahouse:office_server_document_converter:7.2:mr4:*:*:*:*:*:* 1 OR
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 6.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 2.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://jvn.jp/en/jp/JVN33453839/index.html Third Party Advisory
https://www.antenna.co.jp/news/2021/osdc72-20211027.html Patch Vendor Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-20839
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-20839
History
Created Old Value New Value Data Type Notes
2022-05-10 06:47:58 Added to TrackCVE
2022-12-05 13:33:18 2021-11-01T02:15Z 2021-11-01T02:15:06 CVE Published Date updated
2022-12-05 13:33:18 2021-11-08T19:04:52 CVE Modified Date updated
2022-12-05 13:33:18 Analyzed Vulnerability Status updated