CVE-2024-55963 is a medium-severity vulnerability affecting Appsmith versions prior to 1.51. This vulnerability allows a user with non-admin permissions to trigger the restart API, resulting in repeated server restarts, which leads to denial of service. The impact is confined to the Appsmith server itself, but the potential for disruption is significant, making this issue a priority for remediation.
The vulnerability arises from incorrect access control checks, which fail to verify the necessary super user permissions for the incoming requests. Organizations utilizing Appsmith should take immediate action to address this issue to prevent potential service disruptions.
The CVSS score for this vulnerability is 6.5, indicating a medium severity. Organizations need to prioritize patching during their next update cycle to mitigate risks associated with this vulnerability.
Given the known existence of exploits, organizations should act swiftly to ensure their Appsmith installations are updated to the latest version. Failing to do so could expose them to denial-of-service attacks.
Organizations should prioritize patching immediately.
Vulnerability Details
An issue was discovered in Appsmith before 1.51. A user on Appsmith that doesn't have admin permissions can trigger the restart API on Appsmith, causing a server restart. This is still within the Appsmith container, and the impact is limited to Appsmith's own server only, but there is a denial of service because it can be continually restarted. This is due to incorrect access control checks, which should check for super user permissions on the incoming request.
The CVSS score is 6.5, indicating a medium severity level. The availability impact is marked as high, meaning this vulnerability can lead to significant denial of service. The affected product is Appsmith, and the vendor is Appsmith.
Technical Analysis
The root cause of this vulnerability lies in improper access control checks that allow users without the necessary permissions to invoke server restart functions. The attack vector is network-based, requiring low complexity to exploit, and only low privileges are needed to trigger the restart API. Notably, user interaction is not required to exploit this vulnerability, making it easier for attackers to execute.
The availability impact is high, as the server can be repeatedly restarted, leading to a denial of service. Confidentiality and integrity impacts are none, indicating that the exploitation does not compromise sensitive information or alter stored data.
Risk & Impact Analysis
Risk to organizations includes potential service downtime due to the repeated restarts of the Appsmith server. The blast radius is significant as it affects the entire Appsmith environment. Given that the vulnerability can be exploited by users with minimal privileges, organizations that fail to address this vulnerability may experience disruptions in service, negatively impacting user experience and operational efficiency.
Organizations should assess their exposure to this vulnerability based on their use of Appsmith and prioritize patching to mitigate any risks based on the CVSS score of 6.5 and the existing exploit.
Signal | Status |
|---|---|
Known Exploit | Yes |
Public PoC | Yes |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
The affected version range for this vulnerability includes all versions of Appsmith prior to 1.51. It is crucial for organizations to ensure that they are running the latest version to mitigate potential risks.
Mitigation & Remediation
Organizations should upgrade to Appsmith version 1.51 or later to remediate this vulnerability. In addition to updating, implementing robust access controls to ensure that only authorized users can trigger critical APIs is vital. Regular reviews of user permissions and configurations can help prevent similar vulnerabilities in the future.
For ongoing security assessments, organizations may consider using penetration testing to identify similar weaknesses.
Detection Guidance
To detect potential exploitation of this vulnerability, organizations should monitor logs for unusual API calls, particularly those related to server restarts. Behavioral anomalies that indicate unauthorized access attempts should also be flagged. Additionally, network signatures can be implemented to identify any abnormal traffic patterns that may suggest exploitation.
AppSecure Threat Intelligence Insight
The existence of this vulnerability highlights the importance of proper access control mechanisms in application development. Organizations should take note of this incident to reinforce their security policies regarding user permissions.
Security teams can benefit from reviewing their existing applications for similar vulnerabilities. Regular security assessments, such as web application penetration testing, can help identify and mitigate risks before they can be exploited.
Overall, this vulnerability serves as a reminder of the critical need for continuous monitoring and improvement of security practices within organizations.
Further insights can be gained from an examination of trends in vulnerability exposure and the effectiveness of remediation strategies across the industry.
For more information on the latest security practices, organizations may refer to the following resources: vulnerability management programs and penetration testing methodologies to ensure robust application security.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.
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