CVE-2022-29970

sinatra: path traversal possible outside of public_dir when serving static files

Severity Score

7.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

Sinatra before 2.2.0 does not validate that the expanded path matches public_dir when serving static files.

Sinatra versiones anteriores a 2.2.0, no comprueba que la ruta expandida coincida con public_dir cuando sirve archivos estáticos

A flaw was found in Sinatra when serving static files from the public directory. The requested path is not validated if it is in the public directory, allowing files outside of the public directory to be served.

Red Hat Satellite is a systems management tool for Linux-based infrastructure. It allows for provisioning, remote management, and monitoring of multiple Linux deployments with a single centralized tool. Issues addressed include code execution, cross site scripting, denial of service, remote SQL injection, and traversal vulnerabilities.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Attack Vector

Network

Attack Complexity

Low

Authentication

None

Confidentiality

Partial

Integrity

None

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2022-05-02 CVE Reserved
2022-05-02 CVE Published
2024-08-03 CVE Updated
2025-03-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CAPEC

References (4)

URL	Tag	Source
https://lists.debian.org/debian-lts-announce/2022/10/msg00034.html	Mailing List

URL	Date	SRC

URL	Date	SRC
https://github.com/sinatra/sinatra/pull/1683/commits/462c3ca1db53ed3cfc394cf5948e9c948ad1c10e	2022-11-16

URL	Date	SRC
https://access.redhat.com/security/cve/CVE-2022-29970	2022-11-16
https://bugzilla.redhat.com/show_bug.cgi?id=2081096	2022-11-16

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Sinatrarb Search vendor "Sinatrarb"		Sinatra Search vendor "Sinatrarb" for product "Sinatra"				< 2.2.0 Search vendor "Sinatrarb" for product "Sinatra" and version " < 2.2.0"		-		Affected
Debian Search vendor "Debian"		Debian Linux Search vendor "Debian" for product "Debian Linux"				10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0"		-		Affected