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CVE-2023-28103: High Vulnerability in matrix-react-sdk

A high-severity vulnerability in matrix-react-sdk allows attackers to disrupt functionality and cause denial of service. Users must upgrade to version 3.69.0 to mitigate the risk.

HIGHCVSS 8.2 · Published March 28, 2023

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The CVE-2023-28103 vulnerability affects the matrix-react-sdk, a Matrix chat protocol SDK for React Javascript. This vulnerability allows data sent by remote servers containing special strings in key locations to modify the `Object.prototype`. Such modifications can disrupt the functionality of the matrix-react-sdk, leading to a denial of service and potentially affecting the program's logic. This issue has been addressed in version 3.69.0 of the matrix-react-sdk, and users are strongly advised to upgrade to this version as no known workarounds exist.

The vulnerability is classified as high severity with a CVSS score of 8.2, indicating significant risk for affected systems. The attack vector is network-based, and the complexity is low, meaning that attackers can exploit this vulnerability without requiring any privileges or user interaction. Organizations should prioritize patching immediately to mitigate any potential disruptions.

Risk to organizations includes potential downtime and disruption of services, which can lead to loss of user trust and revenue. Although there is no indication of known exploits in the wild, the nature of the vulnerability and its potential impact necessitate immediate attention.

Organizations using matrix-react-sdk should ensure they have the latest version deployed and monitor for any unusual behavior that may indicate exploitation attempts.

Vulnerability Details

The official CVE description states that the matrix-react-sdk experiences vulnerability due to modifications to `Object.prototype`. This vulnerability can lead to denial of service and disrupt the expected behavior of the SDK. The CVSS score of 8.2 classifies this vulnerability as high severity, indicating that it poses a significant risk to users.

The affected product is the matrix-react-sdk with all versions prior to 3.69.0 being vulnerable. The CWE classification associated with this vulnerability is CWE-1321.

Technical Analysis

The root cause of this vulnerability lies in how the matrix-react-sdk handles data from remote servers. In certain configurations, maliciously crafted data can trigger unwanted modifications to the `Object.prototype`, impacting the integrity and availability of the application.

Attackers may leverage this vulnerability over a network, with low complexity and no privileges required. No user interaction is necessary for the exploitation, which increases the risk of successful attacks.

The vulnerability impacts the integrity of the application (low impact) and the availability (high impact), as it can lead to service interruptions.

Risk & Impact Analysis

Real-world deployment of the matrix-react-sdk is at risk due to this vulnerability. Organizations that rely on this SDK for their chat applications face potential downtime and disruptions that could severely affect user experience and business operations.

Given the high CVSS score of 8.2, organizations should address this vulnerability in their priority patch cycle. The potential blast radius for exploitation could be significant, especially in systems where the matrix-react-sdk is integrated into critical workflows.

With an EPSS score of 0.00598, the probability of exploitation in the wild is considered low, but it does not eliminate the need for immediate action. Organizations should remain vigilant and monitor their systems for any signs of unusual activity.

Exploitation Status

Signal

Status

Known Exploit

No

Public PoC

No

Actively Exploited

No

Ransomware Use

No

Affected Versions

The affected versions include all versions of matrix-react-sdk prior to 3.69.0. Users should upgrade to this version to mitigate the vulnerability.

Mitigation & Remediation

To mitigate this vulnerability, organizations should upgrade to matrix-react-sdk version 3.69.0 or later. If immediate upgrading is not possible, organizations should review their configurations and monitor for any unexpected behavior, although no workarounds are known.

For more information on how to manage security vulnerabilities, organizations may consider engaging in penetration testing services to identify vulnerabilities and ensure their systems are secure.

Detection Guidance

Organizations should monitor their logs for any anomalies that may indicate exploitation attempts. Behavioral indicators might include unexpected modifications to application functioning or sudden performance degradation.

AppSecure Threat Intelligence Insight

This vulnerability represents a significant risk to applications leveraging the matrix-react-sdk, as it could lead to denial of service and disruption of services. Security teams should be aware of the potential for such vulnerabilities and ensure regular updates and monitoring are part of their security practices.

Organizations are encouraged to develop a comprehensive vulnerability management program to proactively manage and mitigate risks associated with software vulnerabilities.

Furthermore, keeping abreast of security trends and updates through regular engagement with resources like penetration testing methodologies can help organizations stay ahead of potential threats.

Adopting a strategic approach to application security can significantly reduce the risk of vulnerabilities like CVE-2023-28103 impacting organizational operations.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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