CVE-2021-23727 : Vulnerability Insights and Analysis
Learn about CVE-2021-23727, a high-impact stored command injection vulnerability in celery package versions before 5.2.2. Understand the impact, technical details, and mitigation steps.
A stored command injection vulnerability, CVE-2021-23727, affecting the celery package versions prior to 5.2.2 has been identified. Attackers could exploit this vulnerability by manipulating metadata within celery backends, potentially gaining unauthorized access to the system.
Understanding CVE-2021-23727
This section delves into the details of the CVE-2021-23727 vulnerability.
What is CVE-2021-23727?
CVE-2021-23727 is a stored command injection vulnerability found in the celery package versions before 5.2.2. By default, celery trusts the messages and metadata stored in backends, allowing attackers to trigger the vulnerability by manipulating backend data.
The Impact of CVE-2021-23727
The impact of CVE-2021-23727 is rated as high, with a CVSS v3.1 base score of 7.5. If exploited, attackers could execute arbitrary commands and potentially gain further access to the system.
Technical Details of CVE-2021-23727
In this section, the technical aspects of CVE-2021-23727 are discussed.
Vulnerability Description
The vulnerability stems from celery's deserialization of data retrieved from backend stores, allowing attackers to execute commands through manipulated metadata.
Affected Systems and Versions
The celery package versions earlier than 5.2.2 are impacted by this vulnerability.
Exploitation Mechanism
Attackers can exploit this vulnerability by gaining access to or manipulating the metadata within a celery backend, thereby executing arbitrary commands.
Mitigation and Prevention
Mitigation strategies to address CVE-2021-23727 are crucial in safeguarding systems against potential exploitation.
Immediate Steps to Take
Immediately update the celery package to version 5.2.2 or newer to mitigate the risk of exploitation.
Long-Term Security Practices
Regularly monitor and patch systems for known vulnerabilities and follow secure coding practices to prevent similar security issues.
Patching and Updates
Stay informed about security updates and apply patches promptly to protect systems from evolving threats.