CVE-2024-30057 is a medium-severity vulnerability identified in Microsoft Edge for iOS, specifically version 1.0.0.0. The vulnerability is classified under CWE-356, which relates to the product's user interface failing to warn users of unsafe actions. In this context, the issue manifests as a spoofing vulnerability, where the browser's UI does not adequately alert users when potentially unsafe or deceptive actions are being performed. This could allow an attacker to craft malicious web content or manipulate the browser interface to mislead users into performing actions under false pretenses, such as entering sensitive information or approving permissions. The CVSS 3.1 base score is 5.4 (medium), with an attack vector of network (remote exploitation possible), low attack complexity, no privileges required, but user interaction is necessary. The impact affects confidentiality and integrity to a limited extent, with no impact on availability. The vulnerability does not have known exploits in the wild as of the publication date (June 13, 2024). Since the vulnerability affects Microsoft Edge on iOS, it is constrained to users of this platform and version. The lack of patch links suggests a fix may not yet be publicly available or is pending release. Overall, this vulnerability highlights a UI design flaw that could be leveraged in phishing or social engineering attacks by deceiving users through the browser interface on iOS devices.

For European organizations, the impact of CVE-2024-30057 primarily concerns confidentiality and integrity risks arising from user deception. Organizations with employees or customers using Microsoft Edge on iOS devices could face increased risk of credential theft, unauthorized data disclosure, or manipulation of user actions due to spoofed UI elements. This is particularly relevant for sectors handling sensitive data such as finance, healthcare, and government services. The vulnerability could facilitate targeted phishing campaigns or social engineering attacks exploiting the UI flaw to bypass user caution. However, the requirement for user interaction and the medium severity score limit the scope of automated or large-scale exploitation. The absence of known active exploits reduces immediate risk but does not eliminate the threat, especially as attackers may develop exploits once a patch is available. Organizations relying on iOS devices for business-critical operations should consider this vulnerability in their risk assessments and user training programs.

To mitigate the risks posed by CVE-2024-30057, European organizations should: 1) Ensure all iOS devices running Microsoft Edge are updated promptly once a patch is released by Microsoft. 2) Implement strict mobile device management (MDM) policies to control browser versions and enforce updates. 3) Educate users about the risks of spoofed UI elements and encourage vigilance when interacting with browser prompts or unusual UI behavior. 4) Employ multi-factor authentication (MFA) to reduce the impact of credential theft resulting from spoofing attacks. 5) Monitor network traffic and user reports for suspicious activity that may indicate exploitation attempts. 6) Consider restricting or auditing the use of Microsoft Edge on iOS in high-risk environments until the vulnerability is resolved. 7) Collaborate with security teams to simulate phishing scenarios that incorporate UI spoofing to raise awareness and test defenses.