CVE-2020-28480 : What You Need to Know
Learn about CVE-2020-28480, a high-severity vulnerability in JointJS before 3.3.0 allowing Prototype Pollution. Find out the impact, affected systems, and mitigation steps.
JointJS before version 3.3.0 is vulnerable to Prototype Pollution via util.setByPath. This vulnerability allows attackers to manipulate the prototype of an object, potentially leading to code execution.
Understanding CVE-2020-28480
JointJS, a JavaScript diagramming library, is susceptible to a security issue known as Prototype Pollution.
What is CVE-2020-28480?
CVE-2020-28480 is a vulnerability in JointJS that arises from improper sanitization of user-supplied input, allowing an attacker to modify a JavaScript object's prototype.
The Impact of CVE-2020-28480
The vulnerability has a CVSS base score of 7.3, indicating a high severity level. Exploitation could result in unauthorized access, data manipulation, or even code execution on affected systems.
Technical Details of CVE-2020-28480
JointJS's vulnerability to Prototype Pollution can be further understood through its technical aspects.
Vulnerability Description
The issue in JointJS arises from the util.setByPath function, where the path used to access an object's key and set its value is not properly sanitized, enabling attackers to pollute the object's prototype.
Affected Systems and Versions
- Product: JointJS
- Vendor: Not applicable
- Versions Affected: < 3.3.0 (specifically unspecified custom versions)
Exploitation Mechanism
- Attack Vector: Network
- Attack Complexity: Low
- Privileges Required: None
- User Interaction: None
- Exploit Code Maturity: Proof of Concept
- Vector String: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P
Mitigation and Prevention
Protecting systems from CVE-2020-28480 involves immediate actions and long-term security practices.
Immediate Steps to Take
- Update JointJS to version 3.3.0 or newer to mitigate the vulnerability.
- Monitor for any suspicious activities on the network that could indicate exploitation.
Long-Term Security Practices
- Implement input validation and sanitization to prevent similar vulnerabilities.
- Regularly review and update security configurations and patches.
Patching and Updates
Ensure timely installation of security patches and updates for all software components to address known vulnerabilities.