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Breaching the Perimeter via Cloud Synchronized Browser Settings
Exploring the security risks of cloud-synchronized browser settings, this talk reveals how attackers can breach the perimeter, steal credentials, and execute malicious code while highlighting strategies for mitigation and prevention.
- Cloud Synchronized Browser Settings can be exploited to breach the perimeter and gain access to sensitive data.
- Synci, a.NET tool, can emulate a cloud-synchronized browser settings context, allowing for novel and insidious attacks.
- Attackers can use cloud-synchronized browser settings to steal user credentials, access local files, and trigger external applications.
- Synci provides a rich environment for attacks, including force navigation, password theft, and code execution.
- The power of cloud-synchronized browser settings lies in the sheer amount of context it provides, making it easier for attackers to move laterally.
- Desyncing the browser can prevent some attacks, but doesn’t necessarily prevent all of them.
- Separating personal and work accounts can help reduce the attack surface.
- Using desktop credential storage can also help reduce the risk of data breaches.
- Cloud providers and browser vendors need to improve hardening against sync-based attacks.
- Disabling cloud-synchronized browser settings can prevent attacks, but may also disable convenient features.
- Regularly monitoring and updating browser extensions and settings can help identify and patch vulnerabilities.
- Using authentication protocols and accessing files remotely can help prevent data breaches.