CVE-2023-29867 : Vulnerability Insights and Analysis
Discover how Zammad version 5.3.x (Fixed 5.4.0) is vulnerable to Incorrect Access Control, allowing authenticated attackers to access linked user account information through the API.
Zammad 5.3.x (Fixed 5.4.0) is vulnerable to Incorrect Access Control. An authenticated attacker could gain information about linked accounts of users involved in their tickets using the Zammad API.
Understanding CVE-2023-29867
This CVE describes a security vulnerability in Zammad version 5.3.x that allows an authenticated attacker to access information about linked user accounts through the Zammad API.
What is CVE-2023-29867?
The CVE-2023-29867 vulnerability in Zammad 5.3.x (Fixed 5.4.0) pertains to Incorrect Access Control, enabling authenticated attackers to extract data related to linked user accounts in their tickets via the Zammad API.
The Impact of CVE-2023-29867
The impact of this vulnerability is significant as it permits unauthorized access to sensitive information, potentially exposing user account details and compromising confidentiality.
Technical Details of CVE-2023-29867
Within Zammad version 5.3.x (Fixed 5.4.0), the vulnerability allows an attacker with authentication to gather information on linked user accounts through the Zammad API.
Vulnerability Description
The vulnerability stems from improper access control mechanisms, allowing authenticated attackers to retrieve linked account details.
Affected Systems and Versions
Zammad 5.3.x (Fixed 5.4.0) is specifically affected by this vulnerability.
Exploitation Mechanism
An attacker needs to be authenticated within the system to exploit this vulnerability and access information about linked user accounts.
Mitigation and Prevention
It's crucial to take immediate action to mitigate the risks associated with CVE-2023-29867 by following the recommendations below.
Immediate Steps to Take
- Upgrade Zammad to version 5.4.0 or newer to address the Incorrect Access Control issue.
- Monitor and review user access and permissions to prevent unauthorized data extraction.
Long-Term Security Practices
- Implement regular security audits to identify and address access control issues.
- Provide security awareness training to users to prevent inadvertent data exposure.
Patching and Updates
Stay informed about security updates and patches released by Zammad to address vulnerabilities like CVE-2023-29867.