o 5 h?@sdZddlmZmZddlmZddlZeeZ ddl m Z ddl m Z mZmZmZddlmZddlmZmZmZmZmZmZddlmmZgd Zd ZGd d d ej ej!Z"Gd dde"Z#Gdddej$Z%dS)z1 passlib.handlers.cisco -- Cisco password hashes )hexlify unhexlify)md5N)warn)right_pad_string to_unicode repeat_stringto_bytes)h64)unicodeujoin_byte_valuesjoin_byte_elemsiter_byte_values uascii_to_str) cisco_pix cisco_asa cisco_type7s c@s6eZdZdZdZdZdZdZdZe j Z dZ ddZ dS)ra This class implements the password hash used by older Cisco PIX firewalls, and follows the :ref:`password-hash-api`. It does a single round of hashing, and relies on the username as the salt. This class only allows passwords <= 16 bytes, anything larger will result in a :exc:`~passlib.exc.PasswordSizeError` if passed to :meth:`~cisco_pix.hash`, and be silently rejected if passed to :meth:`~cisco_pix.verify`. The :meth:`~passlib.ifc.PasswordHash.hash`, :meth:`~passlib.ifc.PasswordHash.genhash`, and :meth:`~passlib.ifc.PasswordHash.verify` methods all support the following extra keyword: :param str user: String containing name of user account this password is associated with. This is *required* in order to correctly hash passwords associated with a user account on the Cisco device, as it is used to salt the hash. Conversely, this *must* be omitted or set to ``""`` in order to correctly hash passwords which don't have an associated user account (such as the "enable" password). .. versionadded:: 1.6 .. versionchanged:: 1.7.1 Passwords > 16 bytes are now rejected / throw error instead of being silently truncated, to match Cisco behavior. A number of :ref:`bugs ` were fixed which caused prior releases to generate unverifiable hashes in certain cases. TFcCs|j}t|tr |d}d}t||jkr.|jr*d|j|jf}tj j |j|d|t }|j }|rLt|tr=|d}|rEt|dkrL|t |d7}|rWt|dkrWd}nd}t||}|rd||7}t|}td d t|D}t|d S) a7 This function implements the "encrypted" hash format used by Cisco PIX & ASA. It's behavior has been confirmed for ASA 9.6, but is presumed correct for PIX & other ASA releases, as it fits with known test vectors, and existing literature. While nearly the same, the PIX & ASA hashes have slight differences, so this function performs differently based on the _is_asa class flag. Noteable changes from PIX to ASA include password size limit increased from 16 -> 32, and other internal changes. utf-8Nz.Password too long (%s allows at most %d bytes))msgr css$|] \}}|dd@r|VqdS)N).0icrrj/var/www/html/construction_image-detection-poc/venv/lib/python3.10/site-packages/passlib/handlers/cisco.py s"z+cisco_pix._calc_checksum..ascii)_is_asa isinstancer encodelen truncate_size use_defaultsnameuhexcPasswordSizeError _DUMMY_BYTESuserrrrdigestr enumerater encode_bytesdecode)selfsecretasa spoil_digestrr.pad_sizer/rrr _calc_checksumgs4       zcisco_pix._calc_checksumN)__name__ __module__ __qualname____doc__r)r'truncate_errortruncate_verify_reject checksum_sizer* HASH64_CHARSchecksum_charsr#r8rrrr r$s) rc@seZdZdZdZdZdZdS)ra This class implements the password hash used by Cisco ASA/PIX 7.0 and newer (2005). Aside from a different internal algorithm, it's use and format is identical to the older :class:`cisco_pix` class. For passwords less than 13 characters, this should be identical to :class:`!cisco_pix`, but will generate a different hash for most larger inputs (See the `Format & Algorithm`_ section for the details). This class only allows passwords <= 32 bytes, anything larger will result in a :exc:`~passlib.exc.PasswordSizeError` if passed to :meth:`~cisco_asa.hash`, and be silently rejected if passed to :meth:`~cisco_asa.verify`. .. versionadded:: 1.7 .. versionchanged:: 1.7.1 Passwords > 32 bytes are now rejected / throw error instead of being silently truncated, to match Cisco behavior. A number of :ref:`bugs ` were fixed which caused prior releases to generate unverifiable hashes in certain cases. rTN)r9r:r;r<r)r'r#rrrr rs rcseZdZdZdZdZejZdZ dZ e dfdd Z e dd Z dfd d Ze dd dZeddZddZddZe dddZedZe ddZZS)ra+ This class implements the "Type 7" password encoding used by Cisco IOS, and follows the :ref:`password-hash-api`. It has a simple 4-5 bit salt, but is nonetheless a reversible encoding instead of a real hash. The :meth:`~passlib.ifc.PasswordHash.using` method accepts the following optional keywords: :type salt: int :param salt: This may be an optional salt integer drawn from ``range(0,16)``. If omitted, one will be chosen at random. :type relaxed: bool :param relaxed: By default, providing an invalid value for one of the other keywords will result in a :exc:`ValueError`. If ``relaxed=True``, and the error can be corrected, a :exc:`~passlib.exc.PasslibHashWarning` will be issued instead. Correctable errors include ``salt`` values that are out of range. Note that while this class outputs digests in upper-case hexadecimal, it will accept lower-case as well. This class also provides the following additional method: .. automethod:: decode saltr4Nc sHtt|jdi|}dur"|j|ddtfdd|_|S)Nrelaxed)rEcsSNrrrBrr fsz#cisco_type7.using..r)superrusing _norm_saltget staticmethod_generate_salt)clsrCkwdssubcls __class__rBr rIas zcisco_type7.usingcCsLt|dd}t|dkrtj|t|dd}|||dddS)Nr"hash)rCchecksum)rr&r*r+InvalidHashErrorintupper)rNrSrCrrr from_stringis   zcisco_type7.from_stringc shtt|jdi||dur||}n|jr+|}|||ks*Jd|fntd||_dS)Nzgenerated invalid salt: %rzno salt specifiedr)rHr__init__rJr(rM TypeErrorrC)r3rCrOrQrr rZqs  zcisco_type7.__init__FcCsbt|ts tj|ddd|kr|jkr|Sd}|r-t|tj|dkr*dS|jSt|)z validate & normalize salt value. .. note:: the salt for this algorithm is an integer 0-52, not a string integerrCrz"salt/offset must be in 0..52 range) r$rWr*r+ExpectedTypeErrormax_salt_valuerPasslibHashWarning ValueError)rNrCrErrrr rJ|s  zcisco_type7._norm_saltcCstjddS)Nr)r*rngrandintrrrr rMszcisco_type7._generate_saltcCsd|jt|jfS)Nz%02d%s)rCrrU)r3rrr to_stringszcisco_type7.to_stringcCs0t|tr |d}t|||jdS)Nrr")r$r r%r_cipherrCr2rX)r3r4rrr r8s  zcisco_type7._calc_checksumrcCs:||}t|jd}|||j}|r||S|S)zdecode hash, returning original password. :arg hash: encoded password :param encoding: optional encoding to use (defaults to ``UTF-8``). :returns: password as unicode r")rYrrUr%rerCr2)rNrSencodingr3tmprawrrr r2s zcisco_type7.decodez5dsfd;kfoA,.iyewrkldJKDHSUBsgvca69834ncxv9873254k;fg87cs0|jttfddtt|DS)z1xor static key against data - encrypts & decryptsc3s,|]\}}|t|AVqdSrF)ord)ridxvaluekeykey_sizerCrr r!s  z&cisco_type7._cipher..)_keyr&r r0r)rNdatarCrrlr res  zcisco_type7._cipherrF)F)r)r9r:r;r<r) setting_kwdsr*UPPER_HEX_CHARSrAmin_salt_valuer^ classmethodrIrYrZrJrLrMrdr8r2r rore __classcell__rrrQr r)s.#     r)&r<binasciirrhashlibrlogging getLoggerr9logwarningsr passlib.utilsrrrr passlib.utils.binaryr passlib.utils.compatr r r rrrpasslib.utils.handlersutilshandlersr*__all__r-HasUserContext StaticHandlerrrGenericHandlerrrrrr s     V0