CVE-2019-11881

MEDIUM4.7EPSS 5.2%

Rancher Login Parameter Can Be Edited

發布日:2022/5/24修改日:2024/12/4
也稱為:GHSA-2p4g-jrmx-r34mGO-2024-2761

描述

A vulnerability exists in Rancher 2.1.4 in the login component, where the `errorMsg` parameter can be tampered to display arbitrary content, filtering tags but not special characters or symbols. There's no other limitation of the message, allowing malicious users to lure legitimate users to visit phishing sites with scare tactics, e.g., displaying a "This version of Rancher is outdated, please visit https://malicious.rancher.site/upgrading" message. **PoC** 1. Access the following endpoint on any Rancher instance up to 2.1.4: `https://RANCHER:PORT/login?errorMsg=%68%74%74%70%73%3a%2f%2f%77%77%77%2e%6f%77%61%73%70%2e%6f%72%67%2f%69%6e%64%65%78%2e%70%68%70%2f%57%65%62%5f%50%61%72%61%6d%65%74%65%72%5f%54%61%6d%70%65%72%69%6e%67` It will display a [link](https://www.owasp.org/index.php/Web_Parameter_Tampering) to OWASP Wiki explaining Web Parameter Tampering.

受影響套件(2)

CVSS 分數

來源版本嚴重程度向量
osvCVSS 3.1MEDIUM4.7CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N

參考連結(7)