Multiple vulnerabilities in Backstage

Published: 2023-06-21 | Updated: 2023-08-30

Risk	High
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2022-39266 CVE-2023-35926
CWE-ID	CWE-287 CWE-94
Exploitation vector	Network
Public exploit	N/A
Vulnerable software Subscribe	Backstage Other software / Other software solutions
Vendor	Backstage

Security Bulletin

This security bulletin contains information about 2 vulnerabilities.

1) Improper Authentication

EUVDB-ID: #VU77585

Risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-39266

CWE-ID: CWE-287 - Improper Authentication

Exploit availability: No

Description

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.

Mitigation

Install update from vendor's website.

Vulnerable software versions

Backstage: 1.0.0 - 1.14.2

CPE2.3

External links

http://github.com/backstage/backstage/releases/tag/v1.15.0

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Code Injection

EUVDB-ID: #VU80136

Risk: Low

CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2023-35926

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

Exploit availability: No

Description

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.