CVE-2023-2247: Security Advisory 2023-07

Summary

Variable preview can unmask secrets (CVE-2023-2247)

Advisory Number

2023-07

Discovery Date

10 Nov 2022

Patch Release Date

06 Apr 2023

Advisory Release Date

26 Apr 2023

Product

Octopus Server

Operating System

Linux and Microsoft Windows

Severity

Low

CVE ID

CVE-2023-2247

Customers who have downloaded and installed any of the Octopus Server versions listed below (“Details”) are affected.

Please upgrade your Octopus Server immediately to fix this vulnerability.

Customers who have upgraded Octopus Server to version 2023.1.9794 or higher are not affected.

Severity

Octopus Deploy has given this vulnerability a low rating. This rating was given according to the Octopus Deploy severity levels, which ranks vulnerabilities as critical, high, medium, or low severity.

This is our assessment and you should evaluate its applicability to your own environment.

Details

In affected versions of Octopus Deploy it is possible to unmask variable secrets using the variable preview function.

The versions of Octopus Server affected by this vulnerability are:

• All 2018.3.x, 2019.x.x, 2020.x.x, 2021.x.x versions
• All 2022.1.x, 2022.2.x versions
• All 2022.3.x versions before 2022.3.10929
• All 2022.4.x versions before 2022.4.8319

Fix

To address this vulnerability, we have released Octopus Server version:

• 2022.3.10929
• 2022.4.8319

The latest versions of Octopus Deploy products can be downloaded from https://octopus.com/downloads and previous versions can be downloaded from https://octopus.com/downloads/previous

What You Need to Do

Octopus Deploy recommends that you upgrade to the latest version (2023.1.9794). You can download the latest version of Octopus Server from https://octopus.com/downloads

If you can’t upgrade to the latest version (2023.1.9794):

If you have feature version…

…then upgrade to this version

2018.3.x, 2019.x, 2020.x, 2021.x

2022.3.10929 or greater

2022.1.x, 2022.2.x

2022.3.10929 or greater

2022.3.x

2022.3.10929 or greater

2022.4.x

2022.4.8319 or greater

Mitigation

There is no known mitigation for CVE-2023-2247, it is important to upgrade to a fixed version as soon as possible.

Support

If you have any questions or concerns regarding this advisory, please contact our support team https://octopus.com/support.

Exploitation and Public Announcements

The Octopus Deploy security team is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.

Source

This vulnerability was identified by Octopus Deploy Customer