Vulnerability CVE-2018-1000836


Published: 2018-12-20

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.

Type:

CWE-611

(Information Exposure Through XML External Entity Reference)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Apereo -> Bw-calendar-engine 

 References:
https://0dd.zone/2018/10/28/bw-calendar-engine-XXE-MitM/
https://github.com/Bedework/bw-calendar-engine/issues/3

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