Executive Summary

Informations
Name CVE-2023-35926 First vendor Publication 2023-06-22
Vendor Cve Last vendor Modification 2023-06-29

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Overall CVSS Score 9.9
Base Score 9.9 Environmental Score 9.9
impact SubScore 6 Temporal Score 9.9
Exploitabality Sub Score 3.1
 
Attack Vector Network Attack Complexity Low
Privileges Required Low User Interaction None
Scope Changed Confidentiality Impact High
Integrity Impact High Availability Impact High
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector :
Cvss Base Score N/A Attack Range N/A
Cvss Impact Score N/A Attack Complexity N/A
Cvss Expoit Score N/A Authentication N/A
Calculate full CVSS 2.0 Vectors scores

Detail

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`.

Original Source

Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2023-35926

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-94 Failure to Control Generation of Code ('Code Injection')

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1

Sources (Detail)

Source Url
MISC https://github.com/backstage/backstage/commit/fb7375507d56faedcb7bb3665480070...
https://github.com/backstage/backstage/releases/tag/v1.15.0
https://github.com/backstage/backstage/security/advisories/GHSA-wg6p-jmpc-xjmr

Alert History

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0
1
Date Informations
2023-06-30 00:27:30
  • Multiple Updates
2023-06-22 21:27:21
  • First insertion