CORS Bypass Vulnerability in StackStorm Web UI
CVE-2019-9580

6.1MEDIUM

Key Information:

Vendor

Stackstorm

Status
Stackstorm
Vendor
CVE Published:
9 March 2019

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2019-9580?

In the StackStorm Web UI, a vulnerability exists that allows for the circumvention of the Cross-Origin Resource Sharing (CORS) protection mechanism when a 'null' origin value is used. This flaw can potentially lead to cross-site scripting (XSS) attacks, posing a significant risk for applications relying on CORS for security. It affects StackStorm Web UI versions prior to 2.9.3 and those in the 2.10.x line prior to 2.10.3. It is advisable for users to upgrade to the latest versions to mitigate this risk.

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2019-9580
Created by mpgn

References

https://github.com/StackStorm/st2/releases/tag/v2.9.3
x_refsource_MISC
https://github.com/StackStorm/st2/releases/tag/v2.10.3
x_refsource_MISC
https://stackstorm.com/2019/03/08/stackstorm-2-9-3-2-10-3/
x_refsource_MISC

CVSS V3.1

Score:
6.1
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

.