Sinatra up to 2.1.x Static File path traversal

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Sinatra up to 2.1.x. This vulnerability affects unknown code of the component Static File Handler. Performing a manipulation results in an unknown weakness. This vulnerability is known as CVE-2022-29970. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Sinatra up to 2.1.x. This affects some unknown functionality of the component Static File Handler. CWE is classifying the issue as 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. The impact remains unknown.

The weakness was published 05/02/2022. It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2022-29970 since 05/02/2022. 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.

The vulnerability scanner Nessus provides a plugin with the ID 242690 (Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS : Sinatra vulnerabilities (USN-7664-1)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.2.0 eliminates this vulnerability. Applying a patch 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.

The vulnerability is also documented in the vulnerability database at Tenable (242690). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

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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Nessus ID: 242690
Nessus Name: Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS : Sinatra vulnerabilities (USN-7664-1)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Sinatra 2.2.0
Patch: github.com

Timelineinfo

05/02/2022 🔍
05/02/2022 +0 days 🔍
05/02/2022 +0 days 🔍
11/05/2025 +1283 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2022-29970 (🔍)
GCVE (CVE): GCVE-0-2022-29970
GCVE (VulDB): GCVE-100-198795

Entryinfo

Created: 05/02/2022 16:50
Updated: 11/05/2025 05:47
Changes: 05/02/2022 16:50 (37), 05/04/2022 19:54 (1), 07/25/2025 15:54 (17), 11/05/2025 05:47 (21)
Complete: 🔍
Cache ID: 216::103

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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