CVE-2021-42052 : Vulnerability Insights and Analysis

IPESA e-Flow 3.3.6 allows path traversal for reading any file within the web root directory via the lib/js/build/STEResource.res path and the R query parameter.

Understanding CVE-2021-42052

CVE-2021-42052 involves a vulnerability in IPESA e-Flow 3.3.6 that allows unauthorized users to perform path traversal attacks.

What is CVE-2021-42052?

CVE-2021-42052 permits adversaries to access files outside the intended directory structure on the web server, compromising data confidentiality and potentially leading to further exploitation.

The Impact of CVE-2021-42052

This vulnerability enables attackers to read sensitive files on the server, potentially exposing critical information or facilitating subsequent attacks.

Technical Details of CVE-2021-42052

IPESA e-Flow 3.3.6 vulnerability details.

Vulnerability Description

Path traversal vulnerability in IPESA e-Flow 3.3.6 allows unauthorized file access through specific paths and parameters.

Affected Systems and Versions

Product: IPESA e-Flow 3.3.6
Version: All versions are affected by this vulnerability.

Exploitation Mechanism

Attackers can exploit this flaw by manipulating the lib/js/build/STEResource.res path and the R query parameter to access confidential files.

Mitigation and Prevention

Steps to address CVE-2021-42052.

Immediate Steps to Take

Implement input validation to restrict access to directories outside the intended structure.
Regularly monitor server logs for unusual file access patterns.

Long-Term Security Practices

Conduct regular security assessments and penetration testing to identify and remediate vulnerabilities.
Keep software and systems up to date with the latest security patches.
Educate developers and administrators on secure coding practices.

Patching and Updates

Apply vendor-released patches promptly to mitigate the vulnerability.