Ubuntu Manpage: oscap - OpenSCAP command line tool

NAME

       oscap - OpenSCAP command line tool

SYNOPSIS

       oscap [general-options] module operation [operation-options-and-arguments]

DESCRIPTION

       oscap is Security Content Automation Protocol (SCAP) toolkit based on OpenSCAP library. It
       provides various functions for different SCAP specifications(modules).

       OpenSCAP tool claims to provide capabilities of Authenticated  Configuration  Scanner  and
       Authenticated  Vulnerability Scanner as defined by The National Institute of Standards and
       Technology.

GENERAL OPTIONS

       -V, --version
              Print supported SCAP specification, location of schema files, schematron files, CPE
              files, probes and supported OVAL objects.  Displays a list of inbuilt CPE names.

       -h, --help
              Help screen.

MODULES

       info   Determine type and print information about a file.

       xccdf  The eXtensible Configuration Checklist Description Format.

       oval   Open Vulnerability and Assessment Language.

       ds     SCAP Data Stream

       cpe    Common Platform Enumeration.

       cvss   Common Vulnerability Scoring System

       cve    Common Vulnerabilities and Exposures

INFO OPERATIONS

       any-scap-file.xml
              This  module prints information about SCAP content in a file specified on a command
              line. It determines SCAP content type, specification  version,  date  of  creation,
              date  of  import  and  so on. Info module doesn't require any additional opperation
              switch.

              For XCCDF or Datastream files, info module prints out IDs of incorporated profiles,
              components,  and  datastreams.  These  IDs  can  be  used to specify the target for
              evaluation. Use options --profile, --xccdf-id (or --oval-id),  and  --datastream-id
              respectively.

XCCDF OPERATIONS

eval [options] INPUT_FILE [oval-definitions-files]
Perform evaluation of XCCDF document file given as INPUT_FILE. Print result of each
rule to standard output, including rule title, rule id and security identifier(CVE,
CCE). Optionally you can give a source datastream as the INPUT_FILE instead of an
XCCDF file (see --datastream-id).

oscap returns 0 if all rules pass. If there is an error during evaluation, the
return code is 1. If there is at least one rule with either fail or unknown result,
oscap-scan finishes with return code 2.

Unless --skip-valid is used, the INPUT_FILE is validated using XSD schemas
(depending on document type of INPUT_FILE) and rejected if invalid.

You may specify OVAL Definition files as the last parameter, XCCDF evaluation will
then proceed only with those specified files. Otherwise, when oval-definitions-
files parameter is missing, oscap tool will try to load all OVAL Definition files
referenced from XCCDF automatically (search in the same path as XCCDF).

--profile PROFILE
Select a particular profile from XCCDF document.

--tailoring-file TAILORING_FILE
Use given file for XCCDF tailoring. If both --tailoring-file and
--tailoring-id are specified, --tailoring files takes priority!

--tailoring-id COMPONENT_ID
Use component of given ID (in input source datastream) for XCCDF tailoring.
If both --tailoring-file and --tailoring-id are specified, --tailoring files
takes priority!

--cpe CPE_FILE
Use given CPE dictionary or language (auto-detected) for applicability
checks. (Some CPE names are provided by openscap, see oscap --version for
Inbuilt CPE names)

--results FILE
Write XCCDF results into FILE.

--results-arf FILE
Writes results to a given FILE in Asset Reporting Format. It is recommended
to use this option instead of --results when dealing with datastreams.

--report FILE
Write HTML report into FILE. You also have to specify --results for this
feature to work. Please see --oval-results to enable additional information
in the report.

--oval-results
Generate OVAL Result file for each OVAL session used for evaluation. File
with name 'original-oval-definitions-filename.result.xml' will be generated
for each referenced OVAL file in current working directory. This option (in
conjunction with the --report option) also enables inclusion of additional
OVAL information in the XCCDF report. To change the directory where OVAL
files are generated change the CWD using the `cd` command.

--check-engine-results
After evaluation is finished, each loaded check engine plugin is asked to
export its results. The export itself is plugin specific, please refer to
documentation of the plugin for more details.

--export-variables
Generate OVAL Variables documents which contain external variables' values
that were provided to the OVAL checking engine during evaluation. The
filename format is 'original-oval-definitions-filename-session-
index.variables-variables-index.xml'.

--datastream-id ID
Uses a datastream with that particular ID from the given datastream
collection. If not given the first datastream is used. Only applies if you
give source datastream in place of an XCCDF file.

--xccdf-id ID
Takes component ref with given ID from checklists. This allows to select a
particular XCCDF component even in cases where there are 2 XCCDFs in one
datastream. If none is given, the first component from the checklists
element is used.

--benchmark-id ID
Selects a component ref from any datastream that references a component with
XCCDF Benchmark such that its @id attribute matches given string exactly.
Please note that this is not the recommended way of selecting a component-
ref. You are advised to use --xccdf-id AND/OR --datastream-id for more
precision. --benchmark-id is only used when both --xccdf-id and
--datastream-id are not present on the command line!

--skip-valid
Do not validate input/output files.

--fetch-remote-resources
Allow download of remote OVAL content referenced from XCCDF by check-
content-ref/@href.

--remediate
Execute XCCDF remediatation in the process of XCCDF evaluation. This option
automatically executes content of XCCDF fix elements for failed rules, and
thus this shall be avoided unless for trusted content. Use of this option is
always at your own risk.

remediate [options] INPUT_FILE [oval-definitions-files]
This module provides post-scan remediation. It assumes that the INPUT_FILE is
result of `oscap xccdf eval` operation. The input file must contain TestResult
element. This module executes XCCDF fix elements for failed rule-result contained
in the given TestResult. Use of this option is always at your own risk and it shall
be avoided unless for trusted content.

--result-id ID
ID of the XCCDF TestResult element which shall be remediated. If this option
is missing the last TestResult (in top-down processing) will be remediated.

--skip-valid
Do not validate input/output files.

--fetch-remote-resources
Allow download of remote OVAL content referenced from XCCDF by check-
content-ref/@href.

--cpe CPE_FILE
Use given CPE dictionary or language (auto-detected) for applicability
checks.

--results FILE
Write XCCDF results into FILE.

--results-arf FILE
Writes results to a given FILE in Asset Reporting Format. It is recommended
to use this option instead of --results when dealing with datastreams.

--report FILE
Write HTML report into FILE. You also have to specify --results for this
feature to work.

--oval-results
Generate OVAL Result file for each OVAL session used for evaluation. File
with name 'original-oval-definitions-filename.result.xml' will be generated
for each referenced OVAL file. This option (with conjunction with the
--report option) also enables inclusion of additional OVAL information in
the XCCDF report.

resolve -o output-file xccdf-file
Resolve an XCCDF file as described in the XCCDF specification. It will flatten
inheritance hierarchy of XCCDF profiles, groups, rules, and values. Result is
another XCCDF document, which will be written to output-file.

--force
Force resolving XCCDF document even if it is already marked as resolved.

validate [options] xccdf-file
Validate given XCCDF file against a XML schema. Every found error is printed to the
standard error. Return code is 0 if validation succeeds, 1 if validation could not
be performed due to some error, 2 if the XCCDF document is not valid.

export-oval-variables [options] xccdf-file [oval-definitions-files]
Collect all the XCCDF values that would be used by OVAL during evaluation of a
certain profile and export them as OVAL external-variables document(s). The
filename format is 'original-oval-definitions-filename-session-index.variables-
variables-index.xml'.

--profile PROFILE
Select a particular profile from XCCDF document.

--fetch-remote-resources
Allow download of remote OVAL content referenced from XCCDF by check-
content-ref/@href.

--skip-valid
Do not validate input/output files.

--xccdf-id ID
Takes component ref with given ID from checklists. This allows to select a
particular XCCDF component even in cases where there are 2 XCCDFs in one
datastream.

--cpe CPE_FILE
Use given CPE dictionary or language (auto-detected) for applicability
checks. The variables documents are created only for xccdf:Rules which are
applicable.

generate [options] <submodule> [submodule-specific-options]
Generate another document form an XCCDF file such as security guide or result
report.

--profile ID
Apply profile with given ID to the Benchmark before further processing takes
place.

--format FMT
Specify output format. This option applies only on document generators (i.e.
guide, report). Available formats: html (default), docbook.

Available submodules:

guide [options] xccdf-file
Generate a formatted document containing a security guide from a XCCDF
Benchmark. Unless the --output option is specified it will be written to the
standard output. Without profile being set only groups (not rules) will be
included in the output.

--output FILE
Write the guide to this file instead of standard output.

--hide-profile-info
Information on chosen profile (e.g. rules selected by the profile)
will be excluded from the document.

report [options] xccdf-file
Generate a document containing results of a XCCDF Benchmark execution.
Unless the --output option is specified it will be written to the standard
output. ID of the TestResult element to visualise defaults to the most
recent result (according to the end-time attribute).

--output FILE
Write the report to this file instead of standard output.

--result-id ID
ID of the XCCDF TestResult from which the report will be generated.

--show what
Specify what result types shall be displayed in the result report.
The default is to show everything except for rules with results
notselected and notapplicable. The what part is a comma-separated
list of result types to display in addition to the default. If result
type is prefixed by a dash '-', it will be excluded from the results.
If what is prefixed by an equality sign '=', a following list
specifies exactly what rule types to include in the report. Result
types are: pass, fixed, notchecked, notapplicable, notselected,
informational, unknown, error, fail.

--oval-template template-string
To use the ability to include additional information from OVAL in
xccdf result file, a template which will be used to obtain OVAL
result file names has to be specified. The template can be either a
filename or a string containing wildcard character (percent sign
'%'). Wildcard will be replaced by the original OVAL definition file
name as referenced from the XCCDF file. This way it is possible to
obtain OVAL information even from XCCDF documents referencing several
OVAL files. To use this option with results from an XCCDF evaluation,
specify %.result.xml as a OVAL file name template.

fix [options] xccdf-file
Generate a script that shall bring the system to a state of compliance with
given XCCDF Benchmark.

--output FILE
Write the report to this file instead of standard output.

--result-id ID
Fixes will be generated for failed rule-results of the specified
TestResult.

--template ID|FILE
Template to be used to generate the script. If it contains a dot '.'
it is interpreted as a location of a file with the template
definition. Otherwise it identifies a template from standard set
which currently includes: bash (default if no --template switch
present). Brief explanation of the process of writing your own
templates is in the XSL file xsl/fix.xsl in the openscap data
directory. You can also take a look at the default template
xsl/fixtpl-bash.xml.

custom --stylesheet xslt-file [options] xccdf-file
Generate a custom output (depending on given XSLT file) from an XCCDF file.

--stylesheet FILE
Specify an absolute path to a custom stylesheet to format the output.

--output FILE
Write the document into file.

OVAL OPERATIONS

eval [options] INPUT_FILE
Probe the system and evaluate all definitions from OVAL Definition file. Print
result of each definition to standard output. The return code is 0 after a
successful evaluation. On error, value 1 is returned.

INPUT_FILE can be either OVAL Definition File or SCAP Source Datastream, it depends
on used options.

Unless --skip-valid is used, the INPUT_FILE is validated using XSD schemas
(depending on document type of INPUT_FILE) and rejected if invalid.

--id DEFINITION-ID
Evaluate ONLY specified OVAL Definition from OVAL Definition File.

--variables FILE
Provide external variables expected by OVAL Definition File.

--directives FILE
Use OVAL Directives content to specify desired results content.

--results FILE
Write OVAL Results into file.

--report FILE
Create human readable (HTML) report from OVAL Results.

--oval-id ID
Takes component ref with given ID from checks. This allows to select a
particular OVAL component even in cases where there are 2 OVALs in one
datastream.

--skip-valid
Do not validate input/output files.

collect [options] definitions-file
Probe the system and gather system characteristics for all objects in OVAL
Definition file.

--id OBJECT-ID
Collect system characteristics ONLY for specified OVAL Object.

--variables FILE
Provide external variables expected by OVAL Definitions.

--syschar FILE
Write OVAL System Characteristic into file.

--skip-valid
Do not validate input/output files.

analyse [options] --results FILE definitions-file syschar-file
In this mode, the oscap tool does not perform data collection on the local system,
but relies upon the input file, which may have been generated on another system.
The output (OVAL Results) is printed to file specified by --results parameter.

--variables FILE
Provide external variables expected by OVAL Definitions.

--directives FILE
Use OVAL Directives content to specify desired results content.

--skip-valid
Do not validate input/output files.

validate [options] oval-file
Validate given OVAL file against a XML schema. Every found error is printed to the
standard error. Return code is 0 if validation succeeds, 1 if validation could not
be performed due to some error, 2 if the OVAL document is not valid.

--definitions, --variables, --syschar, --results --directives
Type of the OVAL document is automatically detected by default. If you want
enforce certain document type, you can use one of these options.

--schematron
Turn on Schematron-based validation. It is able to find more errors and
inconsistencies but is much slower.

generate <submodule> [submodule-specific-options]
Generate another document form an OVAL file.

Available submodules:

report [options] oval-results-file
Generate a formatted HTML page containing visualisation of an OVAL results
file. Unless the --output option is specified it will be written to the
standard output.

--output FILE
Write the report to this file instead of standard output.

list-probes [options]
List supported object types (i.e. probes)

--static
List all probes defined in the internal tables.

--dynamic
List all probes supported on the current system (this is default behavior).

--verbose
Be verbose.

CPE OPERATIONS

       check name
              Check whether name is in correct CPE format.

       match name dictionary.xml
              Find an exact match of CPE name in the dictionary.

       validate cpe-dict-file
              Validate given CPE dictionary file against a  XML  schema.  Every  found  error  is
              printed  to  the  standard  error.  Return  code  is 0 if validation succeeds, 1 if
              validation could not be performed due to some error, 2 if the XCCDF document is not
              valid.

CVSS OPERATIONS

       score cvss_vector
              Calculate  score  from  a CVSS vector. Prints base score for base CVSS vector, base
              and temporal score for temporal CVSS vector, base and  temporal  and  environmental
              score for environmental CVSS vector.

       describe cvss_vector
              Describe  individual  components  of  a  CVSS vector in a human-readable format and
              print partial scores.

       CVSS vector consists of several slash-separated components specified as  key-value  pairs.
       Each  key  can  be  specified at most once. Valid CVSS vector has to contain at least base
       CVSS metrics, i.e. AV, AC, AU, C, I, and A. Following table summarizes the components  and
       possible  values  (second  column  is  metric  category: B for base, T for temporal, E for
       environmental):

              AV:[L|A|N]            B   Access vector: Local, Adjacent network, Network

              AC:[H|M|L]            B   Access complexity: High, Medium, Low

              AU:[M|S|N]             B    Required  authentication:  Multiple  instances,  Single
              instance, None

              C:[N|P|C]             B   Confidentiality impact: None, Partial, Complete

              I:[N|P|C]             B   Integrity impact: None, Partial, Complete

              A:[N|P|C]             B   Availability impact: None, Partial, Complete

              E:[ND|U|POC|F|H]       T   Exploitability: Not Defined, Unproven, Proof of Concept,
              Functional, High

              RL:[ND|OF|TF|W|U]     T   Remediation Level: Not Defined, Official  Fix,  Temporary
              Fix, Workaround, Unavailable

              RC:[ND|UC|UR|C]          T     Report   Confidence:   Not   Defined,   Unconfirmed,
              Uncorroborated, Confirmed

              CDP:[ND|N|L|LM|MH|H]  E   Collateral Damage Potential: Not Defined, None, Low, Low-
              Medium, Medium-High, High

              TD:[ND|N|L|M|H]       E   Target Distribution: Not Defined, None, Low, Medium, High

              CR:[ND|L|M|H]          E    Confidentiality  requirement: Not Defined, Low, Medium,
              High

              IR:[ND|L|M|H]         E   Integrity requirement: Not Defined, Low, Medium, High

              AR:[ND|L|M|H]         E   Availability requirement: Not Defined, Low, Medium, High

DS OPERATIONS

sds-compose SOURCE_XCCDF TARGET_SDS
Creates a source datastream from the XCCDF file given in SOURCE_XCCDF and stores
the result in TARGET_SDS. Dependencies like OVAL files are automatically detected
and bundled in target source datastream.

sds-add [options] NEW_COMPONENT EXISTING_SDS
Adds given NEW_COMPONENT file to the existing source datastream (EXISTING_SDS).
Component file might be OVAL, XCCDF or CPE Dictionary file. Dependencies like OVAL
files are automatically detected an bundled in target source datastream.

--datastream-id DATASTREAM_ID
Uses a datastream with that particular ID from the given datastream
collection. If not given the first datastream is used.

sds-split [options] SOURCE_DS TARGET_DIR
Splits given source datastream into multiple files and stores all the files in
TARGET_DIR.

--datastream-id DATASTREAM_ID
Uses a datastream with that particular ID from the given datastream
collection. If not given the first datastream is used.

--xccdf-id XCCDF_ID
Takes component ref with given ID from checklists. This allows to select a
particular XCCDF component even in cases where there are 2 XCCDFs in one
datastream.

sds-validate SOURCE_DS
Validate given source datastream file against a XML schema. Every found error is
printed to the standard error. Return code is 0 if validation succeeds, 1 if
validation could not be performed due to some error, 2 if the source datastream is
not valid.

rds-create SDS TARGET_ARF XCCDF_RESULTS [OVAL_RESULTS [OVAL_RESULTS ..]]
Takes given source datastream, XCCDF and OVAL results and creates a result
datastream (in Asset Reporting Format) and saves it to file given in TARGET_ARF.

rds-split [--report-id REPORT_ID] RDS TARGET_DIR
Takes given result datastream (also called ARF = asset reporting format) and splits
given report and its respective report-request to given target directory. If no
report-id is given, we assume user wants the first applicable report in top-down
order in the file.

rds-validate SOURCE_RDS
Validate given result datastream file against a XML schema. Every found error is
printed to the standard error. Return code is 0 if validation succeeds, 1 if
validation could not be performed due to some error, 2 if the result datastream is
not valid.

CVE OPERATIONS

       validate cve-nvd-feed.xml
              Validate given CVE data feed.

       find CVE cve-nvd-feed.xml
              Find  given  CVE  in  data feed and report base score, vector string and vulnerable
              software list.

EXIT STATUS

       Normally, the exit status is 0 when operation finished successfully and  1  otherwise.  In
       cases  when  oscap performs evaluation of the system it may return 2 indicating success of
       the operation but incompliance of the assessed system.

EXAMPLES

       Evaluate XCCDF content using CPE dictionary and produce html report. In this case  we  use
       United  States  Government  Configuration  Baseline (USGCB) for Red Hat Enterprise Linux 5
       Desktop.

               oscap xccdf eval --fetch-remote-resources --oval-results \
                       --profile united_states_government_configuration_baseline \
                       --report usgcb-rhel5desktop.report.html \
                       --results usgcb-rhel5desktop-xccdf.xml.result.xml \
                       --cpe usgcb-rhel5desktop-cpe-dictionary.xml \
                       usgcb-rhel5desktop-xccdf.xml

CONTENT

        National Vulnerability Database - http://web.nvd.nist.gov/view/ncp/repository

        Red Hat content repository - http://www.redhat.com/security/data/oval/

REPORTING BUGS

       Please report bugs using https://fedorahosted.org/openscap/
       Make sure you include the full output of `oscap --v` in the bug report.

AUTHORS

       Peter Vrabec <pvrabec@redhat.com>
       Šimon Lukašík
       Martin Preisler <mpreisle@redhat.com>