CVE-2017-5677 : Vulnerability Insights and Analysis

A vulnerability has been discovered in versions 0.3.0 through 0.5.7 of the PEAR HTML_AJAX library, involving a PHP Object Injection issue within the PHP Serializer, potentially allowing remote code execution.

Understanding CVE-2017-5677

This CVE involves a PHP Object Injection vulnerability in the PEAR HTML_AJAX library, which could be exploited remotely to execute arbitrary code.

What is CVE-2017-5677?

The vulnerability in versions 0.3.0 through 0.5.7 of PEAR HTML_AJAX allows attackers to execute arbitrary code remotely due to a PHP Object Injection issue within the PHP Serializer.

The Impact of CVE-2017-5677

Attackers can exploit this vulnerability remotely, leading to the execution of arbitrary code.
The root cause of this vulnerability is an incorrect regular expression.

Technical Details of CVE-2017-5677

This section provides more technical insights into the CVE.

Vulnerability Description

PEAR HTML_AJAX 0.3.0 through 0.5.7 is affected by a PHP Object Injection Vulnerability in the PHP Serializer.

Affected Systems and Versions

Versions 0.3.0 through 0.5.7 of the PEAR HTML_AJAX library are impacted by this vulnerability.

Exploitation Mechanism

Attackers can exploit the PHP Object Injection issue within the PHP Serializer to remotely execute arbitrary code.

Mitigation and Prevention

Protecting systems from CVE-2017-5677 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update the PEAR HTML_AJAX library to a non-vulnerable version.
Implement proper input validation to mitigate PHP Object Injection vulnerabilities.

Long-Term Security Practices

Regularly monitor security mailing lists and vendor sites for updates.
Conduct security assessments and penetration testing to identify and address vulnerabilities.

Patching and Updates

Apply patches provided by the PEAR project to fix the PHP Object Injection vulnerability.