Security Advisory 2022-02
|Summary||Open Redirect Vulnerability in Octopus Server (CVE-2022-23184)|
|Discovery Date||03 JAN 2022|
|Patch Release Date||14 JAN 2022|
|Advisory Release Date||19 JAN 2022|
|Operating System||Linux and Microsoft Windows|
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 2021.2.8011 or 2021.3.11057 and higher are not affected.
Octopus Deploy has given this vulnerability a medium 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.
In affected Octopus Server versions when the server HTTP and HTTPS bindings are configured to localhost, Octopus Server will allow open redirects.
The versions of Octopus Server affected by this vulnerability are:
All 0.x.x, 1.x.x, 2.x.x, 3.x.x, 4.x.x versions
All 2018.x.x, 2019.x.x, 2020.x.x, 2020.1.1 versions
All 2021.2.x versions before 2021.2.8011
All 2021.3.x versions before 2021.3.11057
To address this vulnerability, we have released Octopus Server versions:
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 (2021.3.11057). You can download the latest version of Octopus Server from https://octopus.com/downloads
If you can't upgrade to the latest version (2021.3.11057):
|If you have feature version...||...then upgrade to this version|
|2018.x.x, 2019.x.x, 2020.x.x, 2020.1.1||2021.2.8011 or greater|
|2021.2.x||2021.2.8011 or greater|
|2021.3.x||2021.3.11057 or greater|
For Octopus Server versions: 0.xx, 1.x.x, 2.x.x, 3.x.x, 4.x.x please contact our support team https://octopus.com/support for advice on upgrading to a supported version.
If you are unable to upgrade your Octopus Server installation you can effectively mitigate this vulnerability by removing the HTTPS binding and implement SSL offloading or by updating the HTTPS binding from
localhost to match your DNS name.
Instructions for changing bindings using the GUI can be found here: https://octopus.com/docs/security/exposing-octopus/expose-the-octopus-web-portal-over-https#ExposetheOctopuswebportaloverHTTPS-Changingyourwebportalbindings
Instructions for changing bindings using the CLI can be found here: https://octopus.com/docs/octopus-rest-api/octopus.server.exe-command-line/configure
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.
This vulnerability was found by https://bugcrowd.com/Elsfa7-110