In Pulse Secure Pulse Connect Secure version 9.0RX before 9.0R3.4 and 8.3RX before 8.3R7.1 and Pulse Policy Secure version 9.0RX before 9.0R3.2 and 5.4RX before 5.4R7.1, an unauthenticated, remote attacker can conduct a session hijacking attack.
https://www.kb.cert.org/vuls/id/927237
https://psirt.global.sonicwall.com/vuln-detail/SNWLID-2019-0010
https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44101
https://i.blackhat.com/USA-19/Wednesday/us-19-Tsai-Infiltrating-Corporate-Intranet-Like-NSA.pdf