CVE-2017-5630 : What You Need to Know
Learn about CVE-2017-5630, a vulnerability in PEAR Base System v1.10.1 allowing remote servers to overwrite files. Find mitigation steps and prevention measures here.
In PEAR Base System v1.10.1, a vulnerability exists in the download utility class within the Installer, allowing remote servers to overwrite files by manipulating responses.
Understanding CVE-2017-5630
What is CVE-2017-5630?
In CVE-2017-5630, the PECL download utility class in the Installer of PEAR Base System v1.10.1 lacks proper validation of file types and filenames after a redirect, enabling malicious servers to overwrite files.
The Impact of CVE-2017-5630
This vulnerability could be exploited by remote HTTP servers to overwrite files, such as .htaccess, by sending manipulated responses.
Technical Details of CVE-2017-5630
Vulnerability Description
The flaw in the download utility class within the Installer of PEAR Base System v1.10.1 allows for file overwriting through crafted responses.
Affected Systems and Versions
- Product: Not applicable
- Vendor: Not applicable
- Version: Not applicable
Exploitation Mechanism
The vulnerability can be exploited by remote HTTP servers to overwrite files, like .htaccess, through manipulated responses.
Mitigation and Prevention
Immediate Steps to Take
- Apply security patches provided by the vendor
- Monitor for any unauthorized file modifications
- Implement network-level controls to detect and block malicious traffic
Long-Term Security Practices
- Regularly update software and libraries to the latest versions
- Conduct security assessments and penetration testing to identify vulnerabilities
Patching and Updates
Ensure timely installation of security patches and updates to prevent exploitation of this vulnerability.