CVE-2019-18857 : Vulnerability Insights and Analysis
Learn about CVE-2019-18857, a vulnerability in darylldoyle svg-sanitizer before 0.12.0 that mishandles script and data values in attributes, potentially leading to code execution. Find out how to mitigate and prevent this security risk.
The darylldoyle svg-sanitizer version prior to 0.12.0 has a vulnerability related to handling script and data values within attributes, leading to potential security risks.
Understanding CVE-2019-18857
What is CVE-2019-18857?
The CVE-2019-18857 vulnerability involves the mishandling of script and data values in attributes by the darylldoyle svg-sanitizer before version 0.12.0.
The Impact of CVE-2019-18857
This vulnerability can be exploited when unexpected whitespace is present, potentially allowing for malicious script execution.
Technical Details of CVE-2019-18857
Vulnerability Description
The issue arises from improper handling of script and data values within attributes, specifically when encountering unexpected whitespace.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Versions affected: All versions prior to 0.12.0
Exploitation Mechanism
The vulnerability can be exploited by injecting malicious script code containing unexpected whitespace, enabling attackers to execute arbitrary code.
Mitigation and Prevention
Immediate Steps to Take
- Update to version 0.12.0 or later to mitigate the vulnerability.
- Avoid processing SVG files from untrusted sources.
Long-Term Security Practices
- Regularly update software and libraries to the latest versions.
- Implement input validation to sanitize user inputs and prevent code injection attacks.
Patching and Updates
Ensure timely installation of patches and updates provided by the software vendor to address security vulnerabilities.