CVE-2022-25757 : Vulnerability Insights and Analysis
Learn about CVE-2022-25757 affecting Apache APISIX, allowing attackers to bypass input validation checks. Find out the impact, affected versions, and mitigation steps here.
Apache APISIX before version 2.13.0 is vulnerable to an improper input validation issue that allows attackers to bypass the body_schema check in the request-validation plugin. This could lead to potential security risks and impact the application's integrity.
Understanding CVE-2022-25757
This vulnerability in Apache APISIX arises from the way lua-cjson handles JSON with duplicate keys, allowing attackers to evade the body_schema validation.
What is CVE-2022-25757?
In Apache APISIX before 2.13.0, decoding JSON with duplicate keys enables attackers to bypass body_schema validation, posing a threat to systems under specific conditions.
The Impact of CVE-2022-25757
The vulnerability in Apache APISIX version 2.12.1 and earlier versions can result in attackers evading input validation, potentially compromising system integrity.
Technical Details of CVE-2022-25757
The vulnerability in Apache APISIX version 2.12.1 and prior versions stems from improper input validation and a flaw in handling JSON with duplicate keys.
Vulnerability Description
By using JSON with duplicate keys, an attacker can bypass body_schema validation, leading to a security loophole.
Affected Systems and Versions
Systems using Apache APISIX versions 2.12.1 and earlier are vulnerable to this security issue.
Exploitation Mechanism
Attackers exploit the last occurred value of JSON duplicate keys to bypass body_schema check and compromise the input validation process.
Mitigation and Prevention
To address CVE-2022-25757, immediate actions are necessary to protect systems from potential exploitation.
Immediate Steps to Take
- Upgrade APISIX to version 2.13.0 to mitigate the vulnerability.
- Implement additional validation measures in application code to enhance security.
Long-Term Security Practices
Adopt defensive programming practices to prevent similar vulnerabilities and enhance overall system security.
Patching and Updates
Stay informed about security updates and patches released by Apache Software Foundation to address CVE-2022-25757.