OVAL-For-EL

中文 (Chinese version) English (English version)

Features

• CentOS OVAL
• Split oval by severity
• Automatic update and revise with official security

Supports

OS	Release	Upstream	Status
redhat	RHEL5 - RHEL8	https://www.redhat.com/security/data/oval/	syncing
centos	EL5 - EL8	https://www.redhat.com/security/data/oval/	syncing

Scripts

​ scripts/rh2el.py

#usage:
usage: rh2el.py [-h] oval_file output_file

redhat oval definition adapt to centos

positional arguments:
  oval_file    redhat oval file path
  output_file  redhat oval output file path

Files Tree:

├── centos										
│   ├── com.redhat.rhsa-EL7-Critical.xml        #oval severity is critical
│   ├── com.redhat.rhsa-EL7-Important.xml       #oval severity is important
│   ├── com.redhat.rhsa-EL7-Low.xml             #oval severity is low
│   ├── com.redhat.rhsa-EL7-Moderate.xml        #oval severity is moderate
│   ├── com.redhat.rhsa-EL7.xml                 #all severity oval on centos7
│   ├── ...
└── redhat										
    ├── com.redhat.rhsa-RHEL7-Critical.xml		
    ├── com.redhat.rhsa-RHEL7-Important.xml		
    ├── com.redhat.rhsa-RHEL7-Low.xml			
    ├── com.redhat.rhsa-RHEL7-Moderate.xml		
    ├── com.redhat.rhsa-RHEL7.xml				
    ├── ...

Quick Start

Identify software vulnerabilities on centos 7 with oscap which is a best scap scanner provided by openscap.

• Download oval-for-el

  git clone https://github.com/Sep0lkit/oval-for-el.git
  

• Install oscap

  sudo yum install openscap openscap-scnner

• Run oscap oval

  • check all vulnerabilities defined for centos7

    oscap oval eval com.redhat.rhsa-EL7.xml

  • only check one vulnerabilitiy

    Ex: shellchock(CVE-2014-6271). this vulnerabilitiy defined with id oval:com.redhat.rhsa:def:20141293 in com.redhat.rhsa-EL7.xml

    oscap oval eval --id oval:com.redhat.rhsa:def:20141293 com.redhat.rhsa-EL7.xml

  • export html report with options --report

    oscap oval eval --report centos7.html  com.redhat.rhsa-EL7.xml

  ---

  Consle output:

  HTML report:

  

  Result: true means the vulnerability exists, and the true results always before false in html report

Details on ovals above

Redhat:

• split by severity

CentOS:

• convert from redhat oval

• cpe and criterions for centos

  

• rpm signature key check for centos

  

• split by severity

Resource

Linux OVAL

• Redhat
• Ubuntu
• Debian
• Oracle Linux
• SUSE

Getting Help

Twitter: @sep0lkit