Vuls: VULnerability Scanner

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Vulnerability scanner for Linux/FreeBSD, agent-less, written in Go.
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Twitter: @vuls_en

Vuls-Abstract

Vulsrepo

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Abstract

For a system administrator, having to perform security vulnerability analysis and software update on a daily basis can be a burden. To avoid downtime in a production environment, it is common for a system administrator to choose not to use the automatic update option provided by the package manager and to perform update manually. This leads to the following problems.

The system administrator will have to constantly watch out for any new vulnerabilities in NVD (National Vulnerability Database) or similar databases.
It might be impossible for the system administrator to monitor all the software if there are a large number of software packages installed in the server.
It is expensive to perform analysis to determine the servers affected by new vulnerabilities. The possibility of overlooking a server or two during analysis is there.

Vuls is a tool created to solve the problems listed above. It has the following characteristics.

Informs users of the vulnerabilities that are related to the system.
Informs users of the servers that are affected.
Vulnerability detection is done automatically to prevent any oversight.
A report is generated on a regular basis using CRON or other methods. to manage vulnerability.

Vuls-Motivation

Main Features

Scan for any vulnerabilities in Linux/FreeBSD/Windows/macOS

Supports major Linux/FreeBSD/Windows/macOS

Alpine, Amazon Linux, CentOS, AlmaLinux, Rocky Linux, Debian, Oracle Linux, Raspbian, RHEL, openSUSE, openSUSE Leap, SUSE Enterprise Linux, Fedora, and Ubuntu
FreeBSD
Windows
macOS
Cloud, on-premise, Running Docker Container

High-quality scan

Vulnerability Database
- NVD
- JVN(Japanese)
OVAL
- Red Hat
- Debian
- Ubuntu
- SUSE
- Oracle Linux
Security Advisory
Commands(yum, zypper, pkg-audit)
- RHSA / ALAS / ELSA / FreeBSD-SA
- Changelog
PoC, Exploit
CERT
- US-CERT
- JPCERT
CISA(Cybersecurity & Infrastructure Security Agency)
- Known Exploited Vulnerabilities Catalog
Cyber Threat Intelligence(MITRE ATT&CK and CAPEC)
- mitre/cti
Libraries
- aquasecurity/vuln-list
WordPress
- wpscan

Scan mode

Fast Scan

Scan without root privilege, no dependencies
Almost no load on the scan target server
Offline mode scan with no internet access. (CentOS, Alma Linux, Rocky Linux, Debian, Oracle Linux, Red Hat, Fedora, and Ubuntu)

Fast Root Scan

Scan with root privilege
Almost no load on the scan target server
Detect processes affected by update using yum-ps (Amazon Linux, CentOS, Alma Linux, Rocky Linux, Oracle Linux, Fedora, and RedHat)
Detect processes which updated before but not restarting yet using checkrestart of debian-goodies (Debian and Ubuntu)
Offline mode scan with no internet access. (CentOS, Alma Linux, Rocky Linux, Debian, Oracle Linux, Red Hat, Fedora, and Ubuntu)

Remote, Local scan mode, Server mode

Remote scan mode

User is required to only set up one machine that is connected to other target servers via SSH

Local scan mode

If you don't want the central Vuls server to connect to each server by SSH, you can use Vuls in the Local Scan mode.

Server mode

First, start Vuls in server mode and listen as an HTTP server.
Next, issue a command on the scan target server to collect software information. Then send the result to Vuls Server via HTTP. You receive the scan results as JSON format.
No SSH needed, No Scanner needed. Only issuing Linux commands directory on the scan target server.

Dynamic Analysis

It is possible to acquire the state of the server by connecting via SSH and executing the command.
Vuls warns when the scan target server was updated the kernel etc. but not restarting it.

Scan vulnerabilities of non-OS-packages

Libraries of programming language
Self-compiled software
Network Devices

Vuls has some options to detect the vulnerabilities

Scan WordPress core, themes, plugins

Scan WordPress

MISC

Nondestructive testing
Pre-authorization is NOT necessary before scanning on AWS
- Vuls works well with Continuous Integration since tests can be run every day. This allows you to find vulnerabilities very quickly.
Auto-generation of configuration file template
- Auto-detection of servers set using CIDR, generate configuration file template
Email and Slack notification is possible (supports Japanese language)
Scan result is viewable on accessory software, TUI Viewer in a terminal or Web UI (VulsRepo).

What Vuls Doesn't Do

Vuls doesn't update the vulnerable packages.

Document

For more information such as Installation, Tutorial, Usage, visit vuls.io
日本語翻訳ドキュメント

Authors

kotakanbe (@kotakanbe) created vuls and these fine people have contributed.

Contribute

see vulsdoc


<a href="https://www.tines.com/?utm_source=oss&utm_medium=sponsorship&utm_campaign=vuls"><img src="img/sponsor/tines.png" align="left" width="600px" ></a>	Tines is no-code automation for security teams. Build powerful, reliable workflows without a development team.
<a href="https://www.sakura.ad.jp/"><img src="https://vuls.io/img/icons/sakura.svg" align="left" width="600px" ></a>	SAKURA internet Inc. is an Internet company founded in 1996. We provide cloud computing services such as "Sakura's Shared Server", "Sakura's VPS", and "Sakura's Cloud" to meet the needs of a wide range of customers, from individuals and corporations to the education and public sectors, using its own data centers in Japan. Based on the philosophy of "changing what you want to do into what you can do," we offer DX solutions for all fields.