CVE-2021-3882 : Vulnerability Insights and Analysis

A vulnerability in LedgerSMB could allow an attacker to obtain authentication data by capturing network traffic.

Understanding CVE-2021-3882

This CVE identifies a security issue in LedgerSMB related to the handling of session authorization cookies over HTTPS without the 'Secure' attribute.

What is CVE-2021-3882?

LedgerSMB fails to set the 'Secure' attribute on session authorization cookies, potentially enabling attackers to intercept authentication data over unencrypted connections.

The Impact of CVE-2021-3882

The vulnerability could lead to unauthorized access to LedgerSMB applications through the possession of authentication cookies obtained via network eavesdropping.

Technical Details of CVE-2021-3882

This section provides technical insights into the vulnerability.

Vulnerability Description

The issue arises from LedgerSMB's failure to enforce the 'Secure' attribute on session authorization cookies, allowing potential interception of sensitive data.

Affected Systems and Versions

LedgerSMB versions 1.8.0 to 1.8.21 are affected by this vulnerability.

Exploitation Mechanism

Attackers could exploit this flaw by capturing unencrypted network traffic between clients and the server, tricking users into using HTTP connections.

Mitigation and Prevention

Learn how to address and prevent the CVE-2021-3882 vulnerability.

Immediate Steps to Take

Upgrade LedgerSMB to known-fixed versions to mitigate the risk of unauthorized access.

Long-Term Security Practices

Implement proper audit controls and separation of duties to limit the integrity impact of such attack vectors.

Patching and Updates

Configure Apache or Nginx reverse proxies to add the 'Secure' attribute at the network boundary to enhance security.