CVE-2018-1000836

CVSS V2 Medium 6.8 CVSS V3 Critical 9
Description
bw-calendar-engine version <= bw-calendar-engine-3.12.0 contains a XML External Entity (XXE) vulnerability in IscheduleClient XML Parser that can result in Disclosure of confidential data, denial of service, SSRF, port scanning. This attack appear to be exploitable via Man in the Middle or malicious server.
Overview
  • CVE ID
  • CVE-2018-1000836
  • Assigner
  • cve@mitre.org
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2018-12-20T15:29:01
  • Last Modified Date
  • 2019-02-07T17:07:03
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:apereo:bw-calendar-engine:*:*:*:*:*:*:*:* 1 OR 3.12.0
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:P/I:P/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • PARTIAL
  • Integrity Impact
  • PARTIAL
  • Availability Impact
  • PARTIAL
  • Base Score
  • 6.8
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 6.4
CVSS Version 3
  • Version
  • 3.0
  • Vector String
  • CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
  • Attack Vector
  • NETWORK
  • Attack Compatibility
  • HIGH
  • Privileges Required
  • NONE
  • User Interaction
  • NONE
  • Scope
  • CHANGED
  • Confidentiality Impact
  • HIGH
  • Availability Impact
  • HIGH
  • Base Score
  • 9
  • Base Severity
  • CRITICAL
  • Exploitability Score
  • 2.2
  • Impact Score
  • 6
References
Reference URL Reference Tags
https://github.com/Bedework/bw-calendar-engine/issues/3 Third Party Advisory
https://0dd.zone/2018/10/28/bw-calendar-engine-XXE-MitM/ Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2018-1000836
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-1000836
History
Created Old Value New Value Data Type Notes
2022-05-10 07:59:14 Added to TrackCVE
2022-12-03 15:32:48 2018-12-20T15:29Z 2018-12-20T15:29:01 CVE Published Date updated
2022-12-03 15:32:48 2019-02-07T17:07:03 CVE Modified Date updated
2022-12-03 15:32:48 Analyzed Vulnerability Status updated