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SoSCleanera
This function is designed to obfuscate potentially sensitive information
from an sos report archive in a consistent and reproducible manner.
It may either be invoked during the creation of a report by using the
--clean option in the report command, or may be used on an already existing
archive by way of 'sos clean'.
The target of obfuscation are items such as IP addresses, MAC addresses,
hostnames, usernames, and also keywords provided by users via the
--keywords and/or --keyword-file options.
For every collection made in a report the collection is parsed for such
items, and when items are found SoS will generate an obfuscated replacement
for it, and in all places that item is found replace the text with the
obfuscated replacement mapped to it. These mappings are saved locally so
that future iterations will maintain the same consistent obfuscation
pairing.
In the case of IP addresses, support is for IPv4 and IPv6 - effort is made
to keep network topology intact so that later analysis is as accurate and
easily understandable as possible. If an IP address is encountered that we
cannot determine the netmask for, a random IP address is used instead.
For IPv6, note that IPv4-mapped addresses, e.g. ::ffff:10.11.12.13, are
NOT supported currently, and will remain unobfuscated.
For hostnames, domains are obfuscated as whole units, leaving the TLD in
place.
For instance, 'example.com' may be obfuscated to 'obfuscateddomain0.com'
and 'foo.example.com' may end up being 'obfuscateddomain1.com'.
Users will be notified of a 'mapping' file that records all items and the
obfuscated counterpart mapped to them for ease of reference later on. This
file should be kept private.
z6Obfuscate sensitive networking information in a report�auto� Nz /etc/sos/cleaner/default_mappingF� ) � archive_type�domains�disable_parsers�skip_clean_files�jobs�keywords� keyword_file�map_file� no_update�keep_binary_files�target� usernamesc
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zSoSCleaner.display_helpc C s� i }d}t jj| jj�r(td| jj ��t jj| jj�sX| jj|kr�| jd| jj � n�t| jjd��l}yt j
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r� } z | jd| jj|f � W Y dd}~X nX W dQ R X |S )z�Verifies that the map file exists and has usable content.
If the provided map file does not exist, or it is empty, we will print
a warning and continue on with cleaning building a fresh map
z /etc/sos/cleaner/default_mappingz$Requested map file %s is a directoryzHERROR: map file %s does not exist, will not load any obfuscation matches�rzOERROR: Unable to parse map file, json is malformed. Will not load any mappings.z ERROR: Could not load '%s': %sN) r: r< �isdirr5 r# � Exception�existsr\ �open�json�loadZJSONDecodeError)rO Z_confZ default_map�mf�errrS rS rT r? � s& ,zSoSCleaner.load_map_filec C s� | j d�}| jjdt � | jj|� | jjs�y td� W nV tk
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r� } z| jd|� W Y dd}~X nX dS )z�When we are directly running `sos clean`, rather than hooking into
SoSCleaner via report or collect, print a disclaimer banner
a� This command will attempt to obfuscate information that is generally considered to be potentially sensitive. Such information includes IP addresses, MAC addresses, domain names, and any user-provided keywords.
Note that this utility provides a best-effort approach to data obfuscation, but it does not guarantee that such obfuscation provides complete coverage of all such data in the archive, or that any obfuscation is provided to data that does not fit the description above.
Users should review any resulting data and/or archives generated or processed by this utility for remaining sensitive content before being passed to a third party.
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sos clean (version %s)
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Press ENTER to continue, or CTRL-C to quit.
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--keywordsr! z List of keywords to obfuscatez--keyword-filer" z&Provide a file a keywords to obfuscate)ry r} rw z
--map-filer# z /etc/sos/cleaner/default_mappingz;Provide a previously generated mapping file for obfuscation)r} ry rw z --no-updater$ F�
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z SoSCleaner.add_parser_optionsc C s || j _dS )z�For use by report and collect to set the TARGET option appropriately
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N)r5 r& )rO r< rS rS rT �set_target_path* s zSoSCleaner.set_target_pathc C s� d}| j jdkrL| j jjdd�}xZ| jD ] }|j|kr(|| j j| j�}q(W n0x.| jD ]$}|j| j j�rT|| j j| j�}P qTW |s�dS | jj |� |j
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|� || _| jr�| jj| j_dS )z�The target path is not a directory, so inspect it for being an
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z!SoSCleaner.inspect_target_archivec C sN x2| j jD ]&}t|jd��dk r
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�.� zInvalid value 'z0' given: --domains values must be actual domainsc S s g | ]}t j|��qS rS )�fnmatch� translate)�.0�prS rS rT �
<listcomp>Z s z3SoSCleaner.review_parser_values.<locals>.<listcomp>N)r5 r �lenrH rh r )rO Z_domrS rS rT r> N s z SoSCleaner.review_parser_valuesc C s� | j jjd�d jd�d | _| jr,| j� g | _tjj | j j�s`| j
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jd� | j/� dS )a, SoSCleaner will begin by inspecting the TARGET option to determine
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data in place. For an archive will we unpack the archive, iterate
over the contents, and then repack the archive. In the case of an
archive of archives, such as one from SoSCollector, each archive will
be unpacked, cleaned, and repacked and the final top-level archive will
then be repacked as well.
�/rp z.tarr z,Invalid target: no such file or directory %sz'No valid archives or directories found
zHostname ParserNz#No reports obfuscated, aborting...
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� q�W qxW | jdd � | jj| jj�S ) z�Handles repacking the nested tarball, now containing only obfuscated
copies of the reports, log files, manifest, etc...
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z!SoSCleaner.rebuild_nested_archivec C s6 i }x,| j D ]"}i ||j< ||j j|j� � q W |S )a Build a dict that contains each parser's map as a key, with the
contents as that key's value. This will then be written to disk in the
same directory as the obfuscated report so that sysadmins have a way
to 'decode' the obfuscation locally
)rE Z map_file_key�updateZget_map_contents)rO r� r1 rS rS rT r� � s
z SoSCleaner.compile_mapping_dictc C s. t |d��}|jtj|dd�� W dQ R X |S )zjWrite the mapping to a file on disk that is in the same location as
the final archive(s).
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rV } z| jd| � d S d }~X nX d S )Nz%s-private_mapz$Could not write private map file: %s) r: r< r= r* r� r� r� rh r\ )rO r� r� rn rS rS rT r� � s z SoSCleaner.write_map_for_archivec C s� | j jr�| j j r�tjj| j j�}y4tj|dd� | j|| j j� | jd| j j � W n0 t k
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d| � W Y dd}~X nX dS )z}Write the mapping to the config file so that subsequent runs are
able to provide the same consistent mapping
T)r/ zWrote mapping to %sz(Could not update mapping config file: %sN) r5 r# r$ r: r< �dirnamer; r� rY rh r\ )rO r� Z cleaner_dirrn rS rS rT r� � s z SoSCleaner.write_map_for_configc C sx t jj| jd| j �}t|d��0}| jjd� x | jj� D ]}|j |� q:W W dQ R X |rt| j
|� | j j |dd� dS )z�When invoked via the command line, the logging from SoSCleaner will
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separately to disk
z%s-obfuscation.logr� r Nzsos_logs/cleaner.log)r} )
r: r< r= r* r� rj Z sos_log_file�seek� readlinesr� �obfuscate_filer� r� )rO r� Zlog_nameZlogfilera rS rS rT r� s
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r� } z| jd| � W Y dd}~X nX dS )zvCalculate a new checksum for the obfuscated archive, as the previous
checksum will no longer be valid
i r� �rbr^ Nz#Could not generate new checksum: %si ) rj �hashlib�newrB �readr� Z hexdigestrh rY )rO � archive_pathZ hash_sizeZ
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zSoSCleaner.get_new_checksumc C s� y�dt | j�| jjf }| jj|� | jjr8| jjd� t| jj�}|j | j
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z�Perform the obfuscation for each archive or sos directory discovered
during setup.
Each archive is handled in a separate thread, up to self.opts.jobs will
be obfuscated concurrently.
zFFound %s total reports to obfuscate, processing up to %s concurrently
zpWARNING: binary files that potentially contain sensitive information will NOT be removed from the final archive
rp )Z chunksizeT)�waitzExiting on user cancelro N)r� r� r5 r r9 rZ r% rK r �map�obfuscate_reportZshutdownrN � _replace_obfuscated_archivesrr r: rs )rO rU ZpoolrS rS rT r� ( s z!SoSCleaner.obfuscate_report_pathsc C sZ xT| j D ]J}tj|j� | jj}|jjd�d }tjj ||�}t
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r� rp Nr� ) r� r: rL r� rN r� r� rH r< r= r� r� )rO r� r} rx Z dest_namerS rS rT r� E s z'SoSCleaner._replace_obfuscated_archivesc C s x| j D ] }|j� qW dS )z�For the parsers that use prebuilt lists of items, generate those
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as well as being handed cmdline options and mapping file configuration.
N)rE Zgenerate_item_regexes)rO r1 rS rS rT r� R s z'SoSCleaner.generate_parser_item_regexesc C s8 �x0| j D �]$}|jj� j� d j� }x�|j||�D ]�}|j|�}|sHq4| jd|� d|� d|j� �� x^|j � D ]R}y|j
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For each archive we've determined we need to operate on, pass it to
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direct regex replacement. Preppers define these methods per parser,
so it is possible that a single prepper will read the same file for
different parsers/mappings. This is preferable to the alternative of
building up monolithic lists of file paths, as we'd still need to
manipulate these on a per-archive basis.
:param archive: The archive we are currently using to prepare our
mappings with
:type archive: ``SoSObfuscationArchive`` subclass
:param prepper: The individual prepper we're using to source items
:type prepper: ``SoSPrepper`` subclass
r z Prepping z parser with file z from zFailed to prep z
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z(SoSCleaner._prepare_archive_with_prepperc c sb t tjj�}g }x$|j� D ]}|jtd|� ��� qW x&t|dd� d�D ]}|| jd�V qHW dS )a
Discover all locally available preppers so that we can prepare the
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zsos.cleaner.preppers.c S s | j S )N)Zpriority)�xrS rS rT �<lambda>� s z)SoSCleaner.get_preppers.<locals>.<lambda>)�key)r( N) r r- r. ZpreppersZ get_modulesr{ r �sortedr5 )rO �helperZprepsZ_prepr� rS rS rT � get_preppers� s zSoSCleaner.get_preppersc C s< | j d� x,| j� D ] }x| jD ]}| j||� q W qW dS )a Before doing the actual obfuscation, if we have multiple archives
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to ensure that node1 is obfuscated in node2 as well as node2 being
obfuscated in node1's archive.
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�r� } z | j"j#d|j|f � W Y dd}~X nX dS )z�Individually handle each archive or directory we've discovered by
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:param report str: Filepath to the directory or archive
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start_timezBeginning obfuscation...r� rp zUnable to parse file %s: %sNz#Failed to obfuscate directories: %s)rV z Failed to obfuscate symlinks: %szRe-compressing...z!Archive %s failed to compress: %sz!Failed to re-compress archive: %s�end_timeZrun_timeZfiles_obfuscatedZtotal_substitutionsr z! [removed %s unprocessable files]zObfuscation completed%sz!Exception while processing %s: %s)$rD rC � archive_namer Znow� add_fieldZ is_extracted�extractZ
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original file is left in place.
Positional arguments:
:param filename str: Filename relative to the extracted
archive root
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:type archive: ``SoSObfuscationArchive``
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Sindbad File Manager Version 1.0, Coded By Sindbad EG ~ The Terrorists