CVE-2021-22934: 
Ivanti Connect Secure vulnerability analysis and mitigation

CVE-2021-22934 is a buffer overflow vulnerability affecting Pulse Connect Secure versions before 9.1R12. The vulnerability was discovered and reported through HackerOne, with the CVE being assigned on January 6, 2021, and publicly disclosed on August 16, 2021 (NVD).

The vulnerability allows an authenticated administrator or a compromised Pulse Connect Secure device in a load-balanced configuration to perform a buffer overflow via a malicious crafted web request. The vulnerability has been assigned a CVSS v3.1 base score of 7.2 (HIGH) and a CVSS v2.0 score of 6.5 (MEDIUM). The weakness is classified as CWE-120: Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') (NVD).

If successfully exploited, this vulnerability could allow an attacker with administrative privileges or control of a compromised device in a load-balanced setup to execute a buffer overflow attack, potentially leading to system compromise and unauthorized access to sensitive information (CVE).

Organizations are advised to upgrade to Pulse Connect Secure version 9.1R12 or later to address this vulnerability. The fix was released as part of a security update that addressed multiple vulnerabilities in the product (NVD).