Pulse.Secure.VPN.gzip.Authenticated.Remote.Code.Execution

Description

This indicates an attack attempt against a Remote Code Execution vulnerability in Pulse Connect Secure VPN.
The vulnerability is due to insufficient sanitizing of user supplied inputs when handling a crafted HTTP request. An authenticated attacker could exploit this to execute arbitrary code in the context of the vulnerable application.

Affected Products

For CVE-2020-8260:
Pulse Connect Secure (PCS) 9.1Rx or prior
Pulse Policy Secure (PPS) 9.1Rx or piror
Pulse Secure Desktop Client (PDC) 9.1Rx or prior
For CVE-2021-22937:
Pulse Connect Secure (PCS) before version 9.1R12

Impact

System Compromise: Remote attackers can gain control of vulnerable systems.

Recommended Actions

Apply the most recent upgrade or patch from the vendor.
For CVE-2020-8260: https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44601
For CVE-2021-22937: https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA44858

References