SB2023062121 - Multiple vulnerabilities in Backstage

Description

This security bulletin contains information about 2 vulnerabilities.

1) Improper Authentication (CVE-ID: CVE-2022-39266)

CWE-ID: CWE-287 - Improper Authentication

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber

The vulnerability allows a remote attacker to bypass authentication process.

The vulnerability exists due to an error in CachedDataOptions in API. A remote attacker can bypass authentication process and gain unauthorized access to the application.

2) Code Injection (CVE-ID: CVE-2023-35926)

CWE-ID: CWE-94 - Improper Control of Generation of Code ('Code Injection')

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear

The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation. A remote user with write access to a registered scaffolder template can inject and execute arbitrary code on the system.

Remediation

Install update from vendor's website.

References

• https://github.com/backstage/backstage/releases/tag/v1.15.0
• https://github.com/backstage/backstage/security/advisories/GHSA-wg6p-jmpc-xjmr
• https://github.com/backstage/backstage/commit/fb7375507d56faedcb7bb3665480070593c8949a