CVE-2020-29128 : Security Advisory and Response

petl before 1.68, in some configurations, allows resolution of entities in an XML document.

Understanding CVE-2020-29128

petl before version 1.68 is vulnerable to allowing resolution of entities in an XML document.

What is CVE-2020-29128?

CVE-2020-29128 is a vulnerability in petl versions prior to 1.68 that enables the resolution of entities within an XML document, potentially leading to security risks.

The Impact of CVE-2020-29128

This vulnerability could allow attackers to exploit XML entity resolution, leading to various security threats such as information disclosure or server-side request forgery (SSRF).

Technical Details of CVE-2020-29128

petl before version 1.68 is susceptible to entity resolution in XML documents.

Vulnerability Description

The issue in petl versions prior to 1.68 allows for the resolution of entities in XML documents, posing a security risk.

Affected Systems and Versions

Affected Product: Not applicable
Affected Vendor: Not applicable
Affected Version: Not applicable

Exploitation Mechanism

Attackers can exploit this vulnerability by manipulating XML entities, potentially leading to information disclosure or SSRF attacks.

Mitigation and Prevention

Steps to address and prevent the CVE-2020-29128 vulnerability.

Immediate Steps to Take

Upgrade petl to version 1.68 or newer to mitigate the vulnerability.
Implement input validation to prevent malicious XML entity resolution.

Long-Term Security Practices

Regularly update software and libraries to the latest versions.
Conduct security assessments and audits to identify and address vulnerabilities proactively.

Patching and Updates

Stay informed about security advisories and patches released by petl developers to address CVE-2020-29128.