CVE-2018-1000836

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.

CVSS v3.0 9.0 CRITICAL
CVSS v2.0 6.8 MEDIUM

9.0^/10

CVSS v3.0 : CRITICAL

Vector : AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Exploitability : 2.2 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
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

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Configurations

Configuration 1 (hide)

cpe:2.3:a:apereo:bw-calendar-engine:*:*:*:*:*:*:*:*

Information

Published : 2018-12-20 07:29

Updated : 2019-02-07 09:07

NVD link : CVE-2018-1000836

Mitre link : CVE-2018-1000836

JSON object : View

CWE

CWE-611

Improper Restriction of XML External Entity Reference

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Products Affected

apereo

bw-calendar-engine

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