CosmosEscape: Taking over Every Database in Azure Cosmos DB

uvuv

A critical vulnerability chain in Azure Cosmos DB enabled full read and write access to every Cosmos DB database.

troelsSteegin

"Cosmos Master Key"... I can see why that would have been convenient, but talk about a footgun. Right out of a Marvel movie. Still, if admin backdoor access is business-necessary, is the answer a unique admin access key per account?

redwood

Incredible that this is the second time Wiz has discovered a global Cosmos DB vulnerability ( https://chaosdb.wiz.io/ ) and a shock that anyone is trusting Microsoft, Azure or in particular Cosmos DB with anything mission critical

lateral_cloud

It took them 6 months to fix this properly?

sakisv

Is it me or was there a similar vulnerability reported a few years ago? Something about the attacker getting access to all platform's users' databases, though not sure if it was cosmos or something similar.

gtowey

> Cosmos DB's engine translated Gremlin queries into .NET code, enforcing a set of restrictions designed to prevent queries from reaching beyond Gremlin operations. These restrictions, however, didn't sufficiently account for .NET reflection Wow, this is so unbelievably amateurish.

ryanschaefer

Not showing the actual query is somewhat disappointing