CVE-2021-22900 : What You Need to Know
Learn about CVE-2021-22900, a vulnerability in Pulse Connect Secure allowing unauthorized file uploads, impacting systems before version 9.1R11.4. Find mitigation steps and prevention measures.
A vulnerability in Pulse Connect Secure before version 9.1R11.4 allowed multiple unrestricted uploads, enabling an authenticated administrator to perform file write operations through a maliciously crafted archive upload in the administrator web interface.
Understanding CVE-2021-22900
This section provides insights into the impact and technical details of CVE-2021-22900.
What is CVE-2021-22900?
The vulnerability in Pulse Connect Secure before version 9.1R11.4 allowed authenticated administrators to perform unauthorized file uploads through a specially crafted archive upload.
The Impact of CVE-2021-22900
The exploitation of this vulnerability could lead to an attacker executing code injection attacks on the system, potentially compromising the security and integrity of the Pulse Connect Secure platform.
Technical Details of CVE-2021-22900
Below are the specific technical details involving the vulnerability.
Vulnerability Description
The flaw in Pulse Connect Secure prior to version 9.1R11.4 allowed authenticated administrators to conduct unauthorized file uploads via a maliciously crafted archive upload within the administrator web interface.
Affected Systems and Versions
Affected systems include Pulse Secure Secure before version 9.1R11.4.
Exploitation Mechanism
Exploiting this vulnerability required an attacker to craft a specially designed archive upload, allowing them to execute unauthorized file writes on the system.
Mitigation and Prevention
Outlined are the steps to mitigate and prevent the exploitation of CVE-2021-22900.
Immediate Steps to Take
Immediate actions include updating Pulse Secure Secure to version 9.1R11.4 or later, ensuring that the vulnerability is patched to prevent unauthorized file uploads.
Long-Term Security Practices
In the long term, it is recommended to maintain up-to-date software versions and conduct regular security assessments to identify and address vulnerabilities promptly.
Patching and Updates
Regularly check for security updates from Pulse Secure and apply patches as soon as they are available to protect against potential security risks.