CVE-2023-35926
Backstage Scaffolder-Backend Remote Code Execution Vulnerability
Description
Backstage is an open platform for building developer portals. The Backstage scaffolder-backend plugin uses a templating library that requires sandbox, as it by design allows for code injection. The library used for this sandbox so far has been `vm2`, but in light of several past vulnerabilities and existing vulnerabilities that may not have a fix, the plugin has switched to using a different sandbox library. A malicious actor with write access to a registered scaffolder template could manipulate the template in a way that allows for remote code execution on the scaffolder-backend instance. This was only exploitable in the template YAML definition itself and not by user input data. This is vulnerability is fixed in version 1.15.0 of `@backstage/plugin-scaffolder-backend`.
INFO
Published Date :
June 22, 2023, 2:15 p.m.
Last Modified :
June 29, 2023, 8:54 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
6.0
Exploitability Score :
3.1
Public PoC/Exploit Available at Github
CVE-2023-35926 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
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-2023-35926.
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).
None
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2023-35926 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2023-35926 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]
Jun. 29, 2023
Action Type Old Value New Value Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Changed Reference Type https://github.com/backstage/backstage/commit/fb7375507d56faedcb7bb3665480070593c8949a No Types Assigned https://github.com/backstage/backstage/commit/fb7375507d56faedcb7bb3665480070593c8949a Patch Changed Reference Type https://github.com/backstage/backstage/releases/tag/v1.15.0 No Types Assigned https://github.com/backstage/backstage/releases/tag/v1.15.0 Release Notes Changed Reference Type https://github.com/backstage/backstage/security/advisories/GHSA-wg6p-jmpc-xjmr No Types Assigned https://github.com/backstage/backstage/security/advisories/GHSA-wg6p-jmpc-xjmr Vendor Advisory Added CWE NIST CWE-94 Added CPE Configuration OR *cpe:2.3:a:linuxfoundation:backstage:*:*:*:*:*:*:*:* versions up to (excluding) 1.15.0
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2023-35926 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-2023-35926
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
0.74 }} 0.07%
score
0.81100
percentile