Kargo Allows Access to Internal Systems and Data

Summary

Kargo's promotion steps can be configured to access internal network addresses, potentially exposing sensitive data and allowing unauthorized access to internal systems. This can happen if a user with permission to create or update a Stage or promote a Stage configures malicious promotion steps. To protect against this, Kargo will soon introduce a security feature to restrict access to internal addresses.

What to do

Update github.com akuity to version 1.6.4.
Update github.com akuity to version 1.7.9.
Update github.com akuity to version 1.8.12.
Update github.com akuity to version 1.9.5.

Affected software

Vendor	Product	Affected versions	Fix available
github.com	akuity	> 1.4.0 , <= 1.6.4	1.6.4
github.com	akuity	> 1.7.0-rc.1 , <= 1.7.9	1.7.9
github.com	akuity	> 1.8.0-rc.1 , <= 1.8.12	1.8.12
github.com	akuity	> 1.9.0-rc.1 , <= 1.9.5	1.9.5

Original title

Kargo manages and automates the promotion of software artifacts. In versions 1.4.0 through 1.6.3, 1.7.0-rc.1 through 1.7.8, 1.8.0-rc.1 through 1.8.11, and 1.9.0-rc.1 through 1.9.4, the http and htt...

Original description

Kargo manages and automates the promotion of software artifacts. In versions 1.4.0 through 1.6.3, 1.7.0-rc.1 through 1.7.8, 1.8.0-rc.1 through 1.8.11, and 1.9.0-rc.1 through 1.9.4, the http and http-download promotion steps allow Server-Side Request Forgery (SSRF) against link-local addresses, most critically the cloud instance metadata endpoint (169.254.169.254), enabling exfiltration of sensitive data such as IAM credentials. These steps provide full control over request headers and methods, rendering cloud provider header-based SSRF mitigations ineffective. An authenticated attacker with permissions to create/update Stages or craft Promotion resources can exploit this by submitting a malicious Promotion manifest, with response data retrievable via Promotion status fields, Git repositories, or a second http step. This issue has been fixed in versions 1.6.4, 1.7.9, 1.8.12 and 1.9.5.

ghsa CVSS4.0 5.1

Vulnerability type

CWE-918 Server-Side Request Forgery (SSRF)