Backstage up to 0.15.9 plugin-scaffolder-backend path traversal

CVSS Meta Temp Score
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CTI Interest Score
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7.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Backstage. It has been rated as critical. This affects an unknown function of the component plugin-scaffolder-backend. This manipulation causes path traversal. This vulnerability is tracked as CVE-2021-43783. The attack is possible to be carried out remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability classified as critical was found in Backstage. Affected by this vulnerability is an unknown function of the component plugin-scaffolder-backend. The manipulation with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality, integrity, and availability.

The weakness was disclosed 11/30/2021 as GHSA-mg3m-f475-28hv. It is possible to read the advisory at github.com. This vulnerability is known as CVE-2021-43783 since 11/16/2021. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1006 according to MITRE ATT&CK.

Upgrading to version 0.15.14 eliminates this vulnerability. Applying the patch f9352ab606367cd9efc6ff048915c70ed3013b7f is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

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Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.8
VulDB Meta Temp Score: 7.7

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 8.5
NVD Vector: 🔍

CNA Base Score: 8.5
CNA Vector (GitHub, Inc.): 🔍

CVSSv2info

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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Path traversal
CWE: CWE-22
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Backstage 0.15.14
Patch: f9352ab606367cd9efc6ff048915c70ed3013b7f

Timelineinfo

11/16/2021 🔍
11/30/2021 +14 days 🔍
11/30/2021 +0 days 🔍
01/03/2025 +1130 days 🔍

Sourcesinfo

Product: github.com

Advisory: GHSA-mg3m-f475-28hv
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-43783 (🔍)
GCVE (CVE): GCVE-0-2021-43783
GCVE (VulDB): GCVE-100-187327

Entryinfo

Created: 11/30/2021 09:00
Updated: 01/03/2025 16:12
Changes: 11/30/2021 09:00 (50), 12/02/2021 20:38 (2), 01/03/2025 16:12 (34)
Complete: 🔍
Cache ID: 216::103

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