@backstage/plugin-scaffolder-backend is the backend for the default Backstage software templates. In affected versions a malicious actor with write access to a registered scaffolder template is able to manipulate the template in a way that writes files to arbitrary paths on the scaffolder-backend host instance. This vulnerability can in some situation also be exploited through user input when executing a template, meaning you do not need write access to the templates. This method will not allow the attacker to control the contents of the injected file however, unless the template is also crafted in a specific way that gives control of the file contents. This vulnerability is fixed in version `0.15.14` of the `@backstage/plugin-scaffolder-backend`. This attack is mitigated by restricting access and requiring reviews when registering or modifying scaffolder templates.
References
Link | Resource |
---|---|
https://github.com/backstage/backstage/commit/f9352ab606367cd9efc6ff048915c70ed3013b7f | Patch Third Party Advisory |
https://github.com/backstage/backstage/security/advisories/GHSA-mg3m-f475-28hv | Third Party Advisory |
Configurations
History
01 Dec 2021, 19:41
Type | Values Removed | Values Added |
---|---|---|
CPE | cpe:2.3:a:backstage:backstage:*:*:*:*:*:*:*:* | |
CVSS |
v2 : v3 : |
v2 : 5.5
v3 : 8.5 |
References | (MISC) https://github.com/backstage/backstage/commit/f9352ab606367cd9efc6ff048915c70ed3013b7f - Patch, Third Party Advisory | |
References | (CONFIRM) https://github.com/backstage/backstage/security/advisories/GHSA-mg3m-f475-28hv - Third Party Advisory |
29 Nov 2021, 20:20
Type | Values Removed | Values Added |
---|---|---|
New CVE |
Information
Published : 2021-11-29 20:15
Updated : 2024-02-04 22:08
NVD link : CVE-2021-43783
Mitre link : CVE-2021-43783
CVE.ORG link : CVE-2021-43783
JSON object : View
Products Affected
backstage
- backstage
CWE
CWE-22
Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')