CVE-2018-1000836 XML External Entity (XXE) vulnerability in bw-calendar-engine
An attacker can exploit an XML External Entity vulnerability in the bw-calendar-engine library to disclose confidential data or cause denial of service.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-1000836?
CVE-2018-1000836 is a critical vulnerability in n/a, published on 20 Dec 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-611
Which versions are affected by CVE-2018-1000836?
2 open source packages ship an affected version, including org.bedework.caleng:bw-calendar-engine. It affects 1 product.
| Package | Affected | Fixed in |
|---|---|---|
org.bedework.caleng:bw-calendar-engine Maven | All versions to 3.12.2 | None |
org.bedework.caleng:bw-calendar-engine Maven | All versions to 3.12.2 | None |
Products include Apereo Bw-Calendar-Engine.
How do I fix CVE-2018-1000836?
No fix has been published for CVE-2018-1000836 yet. Limit exposure of the affected software until one is available.
Is CVE-2018-1000836 being exploited?
There is no known exploitation of CVE-2018-1000836 in the wild and no public exploit code.
Sources
Also known as GHSA-xmvg-w4f9-99r7.