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

high Nessus Plugin ID 242690

Synopsis

The remote Ubuntu host is missing one or more security updates.

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-7664-1 advisory.

It was discovered that Sinatra incorrectly handled serving static files. An attacker could possibly use this issue to perform local file inclusion, obtaining sensitive information. (CVE-2022-29970)

It was discovered that Sinatra incorrectly handled special characters in the Content-Disposition HTTP header. An attacker could possibly use this issue to perform a reflected file download attack, achieving remote code execution. (CVE-2022-45442)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected ruby-rack-protection, ruby-sinatra and / or ruby-sinatra-contrib packages.

See Also

https://ubuntu.com/security/notices/USN-7664-1

Plugin Details

Severity: High

ID: 242690

File Name: ubuntu_USN-7664-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 7/25/2025

Updated: 7/25/2025

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.9

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2022-29970

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.9

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

CVSS Score Source: CVE-2022-45442

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:20.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:ruby-rack-protection, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:ruby-sinatra-contrib, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:ruby-sinatra

Required KB Items: Host/cpu, Host/Ubuntu, Host/Ubuntu/release, Host/Debian/dpkg-l

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/22/2025

Vulnerability Publication Date: 5/2/2022

Reference Information

CVE: CVE-2022-29970, CVE-2022-45442

USN: 7664-1