CVE-2017-1000472 : Vulnerability Insights and Analysis

This CVE involves a vulnerability in the POCO C++ Libraries that allows attackers to execute absolute path traversal attacks via a crafted ZIP file. The lack of proper validation in the ZipCommon::isValidPath() function can lead to arbitrary file creation or overwriting.

Understanding CVE-2017-1000472

This CVE, assigned on December 29, 2017, and made public on January 3, 2018, highlights a security flaw in the POCO C++ Libraries version prior to 1.8.

What is CVE-2017-1000472?

The vulnerability in the ZipCommon::isValidPath() function of the POCO C++ Libraries allows attackers to exploit absolute path traversal attacks during ZIP file decompression, potentially enabling them to create or overwrite arbitrary files.

The Impact of CVE-2017-1000472

The security issue permits attackers to execute file path injection attacks, compromising the integrity and security of systems utilizing the vulnerable POCO C++ Libraries.

Technical Details of CVE-2017-1000472

This section delves into the specifics of the vulnerability.

Vulnerability Description

The ZipCommon::isValidPath() function in POCO C++ Libraries prior to version 1.8 lacks proper validation of the filename value within the ZIP header, opening the door to absolute path traversal attacks.

Affected Systems and Versions

Product: POCO C++ Libraries
Vendor: N/A
Versions affected: All versions before 1.8

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating ZIP files to execute absolute path traversal attacks during decompression, potentially leading to the creation or overwriting of arbitrary files.

Mitigation and Prevention

Protecting systems from CVE-2017-1000472 requires immediate actions and long-term security practices.

Immediate Steps to Take

Update to POCO C++ Libraries version 1.8 or newer to mitigate the vulnerability.
Implement input validation mechanisms to sanitize user-supplied filenames.

Long-Term Security Practices

Regularly monitor and update software libraries to address security vulnerabilities promptly.
Conduct security assessments and penetration testing to identify and remediate potential weaknesses.

Patching and Updates

Apply patches and security updates provided by the POCO C++ Libraries maintainers to address the vulnerability effectively.