Inappropriate implementation in the Extensions API of Google Chrome prior to version 133.0.6943.53 permits remote attackers to conduct UI spoofing by convincing users to engage in specific UI gestures. This vulnerability, classified as medium severity, poses a risk to organizations due to its potential exploitation through crafted Chrome extensions. The ability of an attacker to manipulate the user interface can lead to significant security breaches.
The CVSS score for this vulnerability is 6.3, indicating a medium severity level. This score reflects the potential impact of the vulnerability, which includes low confidentiality, integrity, and availability impacts. Organizations using affected versions of Google Chrome should take immediate action to mitigate risks, as attackers may leverage this vulnerability to deceive users.
There is currently no known public exploit for this vulnerability, and it is not actively exploited in the wild. However, the potential for exploitation remains, making it critical for organizations to address this issue in their security practices. Organizations should prioritize patching immediately to prevent any possible attacks.
Defending against this vulnerability involves updating Google Chrome to version 133.0.6943.53 or later. Furthermore, organizations should consider implementing additional security measures to monitor for unusual activities related to Chrome extensions.
Vulnerability Details
The vulnerability is described as follows: 'Inappropriate implementation in Extensions API in Google Chrome prior to 133.0.6943.53 allowed a remote attacker who convinced a user to engage in specific UI gestures to perform UI spoofing via a crafted Chrome Extension.' This vulnerability falls under the CWE-451 classification.
The CVSS vector for this vulnerability is CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L, indicating that the attack vector is network-based, with low attack complexity and requires user interaction. There are no required privileges for the attacker, making it easier for exploitation.
Technical Analysis
The root cause of this vulnerability is an inappropriate implementation within the Extensions API. The attack vector is network-based, and the attack complexity is low, as it requires the user to interact with the malicious extension. No privileges are required for this attack, which means that any user can be targeted.
User interaction is required to trigger this vulnerability, and the impact on confidentiality, integrity, and availability is classified as low. This indicates that the attacker may be able to modify the user interface to mislead users without gaining access to sensitive data or compromising system integrity.
Risk & Impact Analysis
Risk to organizations includes potential user deception, which can lead to unauthorized actions by users under false pretenses. The blast radius of this vulnerability could extend to any users interacting with the affected browser. Given the severity and nature of this vulnerability, organizations should address it in their priority patch cycle.
Exploitation Status
Signal | Status |
|---|---|
Known Exploit | No |
Public PoC | No |
Actively Exploited | No |
Ransomware Use | No |
Affected Versions
All versions of Google Chrome prior to 133.0.6943.53 are affected by this vulnerability. Organizations should ensure that their installations are up to date to mitigate any associated risks.
Mitigation & Remediation
To mitigate this vulnerability, organizations should update Google Chrome to version 133.0.6943.53 or later. Regular updates and patches are essential in maintaining security posture. If the update cannot be applied immediately, organizations should develop interim workarounds to prevent user interaction with potentially malicious extensions.
For more information on effective remediation and security measures, organizations can refer to penetration testing services that can help assess and improve their security posture.
Detection Guidance
Organizations should monitor logs for any unusual activities related to extension installations or user interactions. Behavioral anomalies may indicate attempts to exploit this vulnerability. Additionally, network signatures associated with known malicious extensions should be on the lookout to help detect potential threats.
AppSecure Threat Intelligence Insight
The long-term significance of this vulnerability lies in the growing reliance on browser extensions, which often serve as attack vectors. Organizations must remain vigilant and proactive in monitoring browser extension security.
Security teams should consider this vulnerability as a reminder of the importance of user education, particularly regarding the risks associated with extensions and user interactions.
For further insights into security risks and mitigation strategies, organizations can refer to the following resources: penetration testing methodology, vulnerability management program, and security testing best practices to enhance their defenses.
Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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