Openmeetings Vulnerabilities: Server Hijacks And Command Execution

The open-source web conferencing application, Apache OpenMeeting, has recently been found to have multiple vulnerabilities that can lead to server hijacks and command execution. These vulnerabilities pose a serious threat to the security and functionality of OpenMeetings. One of the flaws allows attackers to exploit a weak hash through the use of the LIKE operator, thereby gaining unauthorized access to specific rooms and potentially creating zombie rooms. Another vulnerability, known as CVE-2023-28936, involves a weak hash comparison that enables the enumeration of all invite hashes on the application. Furthermore, CVE-2023-29032 allows for unrestricted access to the application by exploiting the inheritance of hrights. Additionally, threat actors with admin privileges can exploit null-byte injection (CVE-2023-29246), leading to remote code execution on the server. In response to these vulnerabilities, Apache has released a security patch in version 7.1.0 of OpenMeetings, urging users to upgrade to the latest version. This emphasizes the significance of maintaining the security and currency of web conferencing applications.

Key Takeaways

• Apache OpenMeeting has a vulnerability that allows threat actors to hijack the functionality and gain unauthorized access to specific rooms.
• The vulnerability is due to weak hash comparison, which allows threat actors to enumerate valid invitation hashes.
• By combining wildcard enumeration and sending an invitation to the admin user, threat actors can gain administrative privileges.
• Apache has released a security patch in version 7.1.0 of OpenMeetings, and users are advised to upgrade to the latest version to mitigate these vulnerabilities.

Apache OpenMeeting Flaw

The Apache OpenMeeting flaw allows threat actors to exploit weak hash comparisons, leading to server hijacks and command execution. This vulnerability arises from the weak hash used in the LIKE operator, which enables threat actors to hijack the functionality of OpenMeetings. By enumerating valid invitation hashes, threat actors can gain access to specific rooms and create zombie rooms by creating events and joining them. Furthermore, by combining wildcard enumeration and sending an invitation to the admin user, threat actors can obtain administrative privileges. The impact of these server hijacks and command executions on organizations can be severe, as it grants threat actors unauthorized access and control over the application. To mitigate these vulnerabilities, users are recommended to upgrade to the latest version, Apache OpenMeetings 7.1.0, which includes security patches addressing these issues.

CVE-2023-28936 Weak Hash Comparison

Utilizing a getByHash method with wildcard values exposes a weakness in hash comparison in Apache OpenMeetings, allowing for enumeration of all invite hashes on the application. This vulnerability, identified as CVE-2023-28936, is assigned a CVSS score of 5.3 (Medium). The impact of this vulnerability can be mitigated by implementing stronger hash comparison techniques that do not rely on wildcard values. Regular security patches are crucial in addressing this weakness, as they provide updates and fixes to known vulnerabilities. By promptly applying the latest security patch, users can ensure that their OpenMeetings installation is protected against this weak hash vulnerability and other potential security risks. Keeping software up to date is essential for maintaining a secure environment and protecting against potential exploits.

CVE-2023-29032 Unrestricted Access via Invitation Hash

By exploiting CVE-2023-29032, threat actors can gain unrestricted access to the application through the use of invitation hashes. This vulnerability allows attackers to inherit the rights of invited users if no specific room is identified, resulting in unauthorized access to the application. The impact and consequences of this unrestricted access are severe, as it grants threat actors the ability to manipulate and exploit the application’s functionalities and data. To mitigate the risk of unauthorized access via invitation hashes, it is crucial to implement proper security measures. This includes regularly updating and patching the application to the latest version, as Apache has released security patches to address this vulnerability. Additionally, implementing strong access controls, such as limiting the privileges granted to invited users and monitoring for any suspicious activities, can help prevent unauthorized access through invitation hashes.

Frequently Asked Questions

How can threat actors exploit the Apache OpenMeeting flaw to hijack the server and execute commands?

Threat actors can exploit the Apache OpenMeetings flaw by exploiting weak hashes and conducting null-byte injection. This allows them to hijack the server and gain administrative privileges, leading to command execution. Countermeasures include upgrading to the latest version and applying security patches.

What is the CVSS score for the CVE-2023-28936 vulnerability?

The CVSS score for the CVE-2023-28936 vulnerability in Apache OpenMeetings is 5.3 (Medium). This vulnerability allows threat actors to exploit a weak hash comparison, enabling them to enumerate all invite hashes and potentially gain unauthorized access to the application.

How does the CVE-2023-29032 vulnerability allow for unrestricted access to the OpenMeetings application?

The CVE-2023-29032 vulnerability in OpenMeetings allows for unrestricted access to the application, potentially compromising user data security. To mitigate the risks, users should upgrade to the Apache OpenMeetings 7.1.0 version which includes security patches provided by Apache.

What is the CVSS score for the CVE-2023-29032 vulnerability?

The CVSS score for the CVE-2023-29032 vulnerability is 9.8, indicating a critical severity level. This vulnerability allows for unrestricted access to the OpenMeetings application, posing a high risk to the system’s security. Further discussion can focus on vulnerability analysis and mitigation measures.

Is there a security patch available for the Apache OpenMeetings vulnerabilities?

Yes, there is a security patch available for the Apache OpenMeetings vulnerabilities. The release of Apache OpenMeetings 7.1.0 includes the necessary fixes. It is highly recommended for users and organizations to upgrade to this version to address the vulnerabilities and prevent potential security breaches.