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Saturday, February 22, 2025

Zoom Privilege Escalation Vulnerability Through Improper Authorization


Zoom issued an pressing safety advisory a couple of flaw within the Zoom shopper that would enable a person to achieve increased stage privileges and entry that they don’t seem to be approved for.

Zoom Shoppers And Consumer Roles

The Zoom net shopper is what customers use to entry a gathering.

Improper authorization in a Zoom shopper is a safety flaw that permits customers to achieve entry to functionalities or knowledge that they don’t seem to be approved for based mostly on the person privilege ranges assigned to them.

There are three ranges of entry known as person roles in Zoom. Consumer roles defines whether or not a person has the mandatory privileges to carry out specific actions or entry numerous knowledge sources.

The three ranges are:

  • Proprietor: Highest privilege stage that has entry to every little thing
  • Admin: Can add, take away, or edit customers plus handle account options.
  • Members: The bottom person function. Can solely handle their very own profile settings

Zoom Shoppers – Improper Authorization

The Zoom safety alert warned that customers can escalate their person function privileges.

In accordance with the safety advisory:

“Improper authorization in some Zoom shoppers might enable a certified person to conduct an escalation of privilege by way of community entry.”

This vulnerability is mitigated to a sure extent in {that a} person should first be approved to the community with a purpose to transfer on to the subsequent step of escalating person privileges. That could be why the safety challenge has been assigned a severity score of medium with a rating of 5.5/10.

Checklist Of Affected Zoom Shoppers

  • Zoom Desktop Consumer for Home windows earlier than model 5.16.0
  • Zoom Desktop Consumer for macOS earlier than model 5.16.0
  • Zoom Cellular App for iOS earlier than model 5.16.0
  • Zoom Cellular App for Android earlier than model 5.16.0
  • Zoom Desktop Consumer for Linux earlier than model 5.16.0
  • Zoom Rooms Consumer for Home windows earlier than model 5.16.0
  • Zoom Rooms Consumer for macOS earlier than model 5.16.0
  • Zoom Rooms Consumer for Android earlier than model 5.16.0
  • Zoom Rooms Consumer for iPad earlier than model 5.16.0
  • Zoom VDI Consumer earlier than model 5.16.0 (excluding 5.14.13 and 5.15.11)
  • Zoom Assembly SDK for Home windows earlier than model 5.16.0
  • Zoom Assembly SDK for iOS earlier than model 5.16.0
  • Zoom Assembly SDK for Android earlier than model 5.16.0
  • Zoom Assembly SDK for macOS earlier than model 5.16.0
  • Zoom Assembly SDK for Linux earlier than model 5.16.0

Replace Zoom Consumer Instantly

Customers are suggested to replace their Zoom shoppers.

Zoom recommends:

“Customers may also help preserve themselves safe by making use of present updates or downloading the newest Zoom software program with all present safety updates from https://zoom.us/obtain.”

Learn the Zoom safety bulletin:

Zoom Shoppers – Improper Authorization

Featured Picture by Shutterstock/Ink Drop

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