CVE-2022-32816

What it actually does

The flaw permits a website to frame malicious content such that improved UI handling is bypassed, resulting in spoofed interface elements that can deceive users about the origin or nature of displayed content.

Why it matters to the business

Users may be tricked into revealing sensitive information or performing unintended actions on framed sites, increasing phishing success rates and potential data exposure across widely deployed client platforms.

How an attack unfolds

An attacker prepares a page that embeds malicious framed content; when a victim visits the crafted site, the UI handling defect causes spoofed elements to appear legitimate, enabling social engineering or credential theft. Threat actors such as Candiru have been associated with similar client-side framing attacks.

How to fix it

Upgrade affected curl installations to commit 72cf468d459d29e5366e416c014faaaf281dfa2d or later; for Apple platforms apply the corresponding OS updates (watchOS 8.7, tvOS 15.6, iOS 15.6, iPadOS 15.6, macOS Monterey 12.5).

How to confirm the fix worked

Confirm the installed version reports the fixed commit hash or OS build numbers listed above; test by attempting to load a framed test page and verifying that spoofing indicators are no longer rendered.

Typical attack path

1. Attacker hosts a website embedding malicious framed content
2. Victim is directed to visit the attacker-controlled page
3. Client renders the framed content without proper UI isolation
4. Spoofed interface deceives the user into interacting with malicious elements
5. Attacker achieves phishing, data theft, or further compromise

How to detect it

Review web proxy and browser logs for visits to domains known to host framing attacks; look for client processes rendering unexpected cross-origin frames shortly before user-reported anomalies.

What your security team should do

• Prioritize patching curl and Apple client platforms within the next 30 days given rising EPSS trend
• Block or sandbox untrusted framed content via web proxy or browser policies
• Monitor for new exploit maturity announcements and update threat models accordingly