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The #CERT Coordination Center (CERT/CC) has released information on 33 vulnerabilities, known as AMNESIA:33, affecting multiple embedded open-source Transmission Control Protocol/Internet Protocol (#TCP/IP) stacks. A remote attacker could #exploit some of these vulnerabilities to take control of an affected system.

https://us-cert.cisa.gov/ics/advisories/icsa-20-343-01
SANS Holiday Hack Challenge holidayhackchallenge.com
PoC exploits for CVE-2020-17143 and CVE-2020-17141 which demonstrate the XXE bugs against Exchange Server.

- Low privileged authentication only
- CVE-2020-17141 is interesting because its in the EWS API

https://srcincite.io/pocs/cve-2020-17143.py.txt
https://srcincite.io/pocs/cve-2020-17141.py.txt