CVE-2021-28966: Path Traversal

Q: What is CVE-2021-28966?

CVE-2021-28966 is a vulnerability in Ruby on Windows that allows a remote attacker to submit a crafted path in a web application.

Q: What is the severity of CVE-2021-28966?

The severity of CVE-2021-28966 is high, with a CVSS score of 7.5.

Q: How does CVE-2021-28966 affect Ruby?

CVE-2021-28966 affects Ruby versions up to 2.7.3 and versions 3.0.0 to 3.0.1 on Windows systems.

Q: What is the impact of CVE-2021-28966?

CVE-2021-28966 allows a remote attacker to exploit a parameter handling vulnerability in a web application using Ruby on Windows.

Q: Are there any references for CVE-2021-28966?

Yes, you can find more information about CVE-2021-28966 at the following references: [HackerOne report](https://hackerone.com/reports/1131465) and [NetApp advisory](https://security.netapp.com/advisory/ntap-20210902-0004/).

Published Jul 27, 2021

Updated

In Ruby through 3.0 on Windows, a remote attacker can submit a crafted path when a Web application handles a parameter with TmpDir.

Affected Software

3 affected components

ruby-lang ruby<2.7.3

ruby-lang ruby>=3.0.0<3.0.1

Microsoft Windows

Remediation

Patch Available

https://hackerone.com/reports/1131465

Event History

Jul 27, 2021

CVE Published

via MITRE·04:01 PM

Data Sourced

via MITRE·04:01 PM

Description

Frequently Asked Questions

What is CVE-2021-28966?

CVE-2021-28966 is a vulnerability in Ruby on Windows that allows a remote attacker to submit a crafted path in a web application.

What is the severity of CVE-2021-28966?