CVE-2021-27576: Uncontrolled Resource Consumption in Apache OpenMeetings server
Summary
CVE-2021-27576: Uncontrolled Resource Consumption in Apache OpenMeetings server. Affects org.apache.openmeetings:openmeetings-parent versions >= 4.0.0, < 6.0.0. Fixed in 6.0.0. How to fix ↓
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Background
Apache OpenMeetings is an open-source web conferencing and collaboration software that allows users to communicate and collaborate in real-time. It provides features such as video conferencing, screen sharing, whiteboarding, and document sharing. The vulnerability identified as CVE-2021-27576 affects the Apache OpenMeetings server and can lead to uncontrolled resource consumption. This vulnerability can be exploited by using the NetTest web service to overload the server's bandwidth, potentially causing denial of service or degradation of service performance.
Vulnerability Detail
The vulnerability in Apache OpenMeetings server arises from a lack of proper resource management in handling requests from the NetTest web service. By sending a large number of requests to the server, an attacker can exhaust the server's available bandwidth, leading to a denial of service condition. This can result in the server becoming unresponsive or experiencing significant performance degradation. The impact of this vulnerability can be severe, as it can disrupt ongoing conferences and hinder collaboration among users. The vulnerability has been assigned a CVSS score of 7.5, indicating a high severity level.
How To Fix
Minimum fixed version
6.0.0
This is the first release that contains the fix.
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Workaround
As a temporary workaround, users can consider implementing rate limiting or throttling mechanisms at the network level to restrict the number of requests that can be made to the NetTest web service. This can help mitigate the risk of resource exhaustion until the server is upgraded to a fixed version. However, it is important to note that this workaround may impact legitimate usage of the service, so it should be carefully implemented and monitored.
Conclusion
The vulnerability in Apache OpenMeetings server can lead to uncontrolled resource consumption, potentially causing denial of service or degradation of service performance. It is crucial to upgrade to the latest version of Apache OpenMeetings to mitigate this vulnerability. Users should follow the provided upgrade instructions and consider implementing temporary workarounds if necessary. For further support and assistance in vulnerability remediation, please contact DevNack.com.
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FAQ
Apache OpenMeetings is an open-source web conferencing and collaboration software that enables real-time communication and collaboration among users. It provides features such as video conferencing, screen sharing, whiteboarding, and document sharing.
The vulnerability can lead to uncontrolled resource consumption in the Apache OpenMeetings server. This can result in denial of service or degradation of service performance, potentially disrupting ongoing conferences and hindering collaboration among users.
To fix this vulnerability, it is recommended to upgrade to Apache OpenMeetings version 6.0.0 or later. This version includes the necessary fixes and improvements to mitigate the resource consumption issue. Users should follow the upgrade instructions provided by the Apache OpenMeetings project.
As a temporary workaround, users can consider implementing rate limiting or throttling mechanisms at the network level to restrict the number of requests that can be made to the NetTest web service. However, this workaround may impact legitimate usage of the service and should be carefully implemented and monitored.
The CVSS score of this vulnerability is 7.5, indicating a high severity level.
References
Related vulnerabilities
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