CVE-2021-26788 : Security Advisory and Response
Discover the impact and mitigation steps for CVE-2021-26788 affecting Oryx Embedded CycloneTCP versions 1.7.6 to 2.0.0. Take immediate action to prevent exploitation.
Oryx Embedded CycloneTCP 1.7.6 to 2.0.0, fixed in 2.0.2, is affected by incorrect input validation, leading to a denial of service (DoS) risk. An attacker with TCP connectivity to the target system can exploit this vulnerability by sending a crafted TCP packet. Here's what you need to know about CVE-2021-26788.
Understanding CVE-2021-26788
This section provides insights into the vulnerability and its impact.
What is CVE-2021-26788?
The Oryx Embedded CycloneTCP version 1.7.6 to 2.0.0, which has been fixed in version 2.0.2, is susceptible to incorrect input validation. This flaw poses a threat as it could result in a denial of service (DoS) attack. Attackers can leverage this vulnerability with TCP access to the target system.
The Impact of CVE-2021-26788
Exploiting CVE-2021-26788 could lead to a denial of service (DoS) condition on the affected system. Attackers can disrupt the normal functioning of the system by sending a specifically crafted TCP packet.
Technical Details of CVE-2021-26788
Explore the technical aspects of the vulnerability.
Vulnerability Description
The vulnerability arises due to incorrect input validation in Oryx Embedded CycloneTCP versions 1.7.6 to 2.0.0. This lapse enables malicious actors to exploit the software and trigger a denial of service (DoS) scenario.
Affected Systems and Versions
Oryx Embedded CycloneTCP versions 1.7.6 to 2.0.0 are impacted by this vulnerability, with version 2.0.2 containing the necessary fixes.
Exploitation Mechanism
To exploit this vulnerability, attackers need TCP connectivity to the target system. By sending a carefully crafted TCP packet from an unauthenticated source, the attacker can initiate a DoS attack.
Mitigation and Prevention
Learn how to safeguard your systems against CVE-2021-26788.
Immediate Steps to Take
It is crucial to update the affected software to the patched version 2.0.2 to mitigate the risk of a DoS attack. Network monitoring and access control measures can also help detect and prevent exploitation attempts.
Long-Term Security Practices
Implement robust network security measures, conduct regular security assessments, and ensure timely software updates to enhance the overall security posture of your systems.
Patching and Updates
Regularly check for security updates and patches provided by Oryx Embedded to address vulnerabilities like CVE-2021-26788.