CVE-2023-34237

Published: 7 June 2023

SABnzbd is an open source automated Usenet download tool. A design flaw was discovered in SABnzbd that could allow remote code execution. Manipulating the Parameters setting in the Notification Script functionality allows code execution with the privileges of the SABnzbd process. Exploiting the vulnerabilities requires access to the web interface. Remote exploitation is possible if users[exposed their setup to the internet or other untrusted networks without setting a username/password. By default SABnzbd is only accessible from `localhost`, with no authentication required for the web interface. This issue has been patched in commits `e3a722` and `422b4f` which have been included in the 4.0.2 release. Users are advised to upgrade. Users unable to upgrade should ensure that a username and password have been set if their instance is web accessible.

Priority

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package	Release	Status
sabnzbdplus Launchpad, Ubuntu, Debian	bionic	Needs triage
	focal	Needs triage
	jammy	Needs triage
	kinetic	Ignored (end of life, was needs-triage)
	lunar	Ignored (end of life, was needs-triage)
	mantic	Ignored (end of life, was needs-triage)
	noble	Needs triage
	trusty	Ignored (end of standard support)
	upstream	Needs triage
	xenial	Needs triage

Severity score breakdown

Parameter	Value
Base score	9.8
Attack vector	Network
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	High
Integrity impact	High
Availability impact	High
Vector	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Join the discussion

Canonical is offering Expanded Security Maintenance

Canonical is offering Ubuntu Expanded Security Maintenance (ESM) for security fixes and essential packages.

Find out more about ESM ›