CVE-2014-1748

What it actually does

The ScrollView::paint function in Blink allows remote attackers to extend scrollbar painting into the parent frame, enabling UI spoofing that alters visual elements without altering underlying content or requiring authentication.

Why it matters to the business

Attackers could trick users into making incorrect decisions based on falsified interface elements in outdated browser versions, leading to potential data exposure or fraudulent actions with minimal operational disruption but elevated phishing risk in legacy environments.

How an attack unfolds

An attacker hosts a malicious webpage that loads content triggering the ScrollView painting flaw in Blink; when rendered in an affected Chrome version, the scrollbar extends across frames to overlay spoofed UI elements that deceive the user into unintended interactions.

How to fix it

Upgrade Google Chrome to version 35.0.1916.114 or later to correct the ScrollView painting behavior; apply browser updates across all instances and enforce automatic update policies to prevent reintroduction of the flaw.

How to confirm the fix worked

Confirm the installed Chrome version is 35.0.1916.114 or newer; test rendering of cross-frame scrollbars in controlled pages to verify painting remains confined to the intended frame.

Typical attack path

1. Host a crafted webpage exploiting Blink's ScrollView painting logic
2. Deliver the URL to a victim using an affected browser version
3. Victim loads the page causing scrollbar to paint into the parent frame
4. Spoofed UI elements appear to manipulate user actions or perceptions

How to detect it

Review web server logs and browser telemetry for unusual cross-frame rendering requests; examine historical access logs around 2014-era activity for repeated visits to sites known to test scrollbar behavior, though active exploitation indicators are unlikely given the CVE's age and low EPSS.

What your security team should do

• Prioritize browser inventory scans to identify any remaining instances below the fixed version
• Enforce enterprise update mechanisms and disable legacy browser fallbacks
• Monitor for any user reports of unexpected UI behavior in web applications