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Medium · 4.7 Public exploit CVE-2019-11881 EUVD-2022-2020GHSA-2p4g-jrmx-r34mGO-2024-2761

Rancher Login Parameter Can Be Edited

Published Jun 10, 2019 · Updated Dec 4, 2024 · Assigned by mitre

Package: github.com/rancher/rancher Ecosystem: Go

Description

A vulnerability exists in Rancher before 2.2.4 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to lure legitimate users to visit phishing sites with scare tactics, e.g., displaying a "This version of Rancher is outdated, please visit https://malicious.rancher.site/upgrading" message.

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

  • MauroEldritch/VanCleef ★ 3 · May 24, 2019

    Exploit for CVE-2019-11881 (Rancher 2.1.4 Web Parameter Tampering)

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

Affected packages

EcosystemPackageAffectedFixedRecord
Go github.com/rancher/rancher <= 2.1.4 — GHSA-2p4g-jrmx-r34m
Go github.com/rancher/rancher all versions — GO-2024-2761

References