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Link Previews feature alert

3119
Classification
These posts contain security alerts, including digital loopholes, electronic attacks, technical updates, and they are classified base on the level of severity.

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● High

● Medium

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حملات تصيدية تستهدف مايكروسوفت تيمز (Microsoft Teams)

● High

Warning Date

Severity Level

Warning Number

Target Sector

27 October, 2020

● High

2020-1984

All

Description:

Several security and privacy issues caused by "Link Previews" feature in multiple social media and messaging apps.

What Is A Link Preview?

  • A Link Preview is a visual review (including a brief description), of the link you type into the conversation.
IMG_3883 (2).jpg

Threats:

  • An attacker could exploit this feature by doing the following:
  • Obtain the users' IP Addresses
  • Execute arbitrary code
  • Expose sensitive information
  • Application crash

Best practice and Recommendations:

  • Dont's send any link that contains sensitive information in your social media accounts or any messaging apps.
  • Active the end-to-end encryption feature if the application provided it.
  • Signal messaging app allows users to disable this feature by doing the following:
    1. Settings
    2. Privacy
    3. Disable "Generate link previews"

Last updated at 28 October, 2020

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