CVE-2021-41151
Backstage Scaffolder File Inclusion Vulnerability (File Read)
Description
Backstage is an open platform for building developer portals. In affected versions A malicious actor could read sensitive files from the environment where Scaffolder Tasks are run. The attack is executed by crafting a custom Scaffolder template with a `github:publish:pull-request` action and a particular source path. When the template is executed the sensitive files would be included in the published pull request. This vulnerability is mitigated by the fact that an attacker would need access to create and register templates in the Backstage catalog, and that the attack is very visible given that the exfiltration happens via a pull request. The vulnerability is patched in the `0.15.9` release of `@backstage/plugin-scaffolder-backend`.
INFO
Published Date :
Oct. 18, 2021, 9:15 p.m.
Last Modified :
Oct. 22, 2021, 4:09 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
4.0
Exploitability Score :
2.3
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-41151.
| URL | Resource |
|---|---|
| https://github.com/backstage/backstage/commit/6968962c920508eae19a4c1c200fa2c8980a4006 | Patch Third Party Advisory |
| https://github.com/backstage/backstage/security/advisories/GHSA-pvv8-8fx9-h673 | Third Party Advisory |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-41151 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-41151 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
Initial Analysis by [email protected]
Oct. 22, 2021
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:N/A:N) Added CVSS V3.1 NIST AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N Changed Reference Type https://github.com/backstage/backstage/commit/6968962c920508eae19a4c1c200fa2c8980a4006 No Types Assigned https://github.com/backstage/backstage/commit/6968962c920508eae19a4c1c200fa2c8980a4006 Patch, Third Party Advisory Changed Reference Type https://github.com/backstage/backstage/security/advisories/GHSA-pvv8-8fx9-h673 No Types Assigned https://github.com/backstage/backstage/security/advisories/GHSA-pvv8-8fx9-h673 Third Party Advisory Added CWE NIST CWE-22 Added CPE Configuration OR *cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:* versions from (including) 0.9.4 up to (excluding) 0.15.9
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-41151 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-41151
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.07 }} -0.00%
score
0.28998
percentile