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| 1 | +#!/usr/bin/env python |
| 2 | + |
| 3 | +""" |
| 4 | +Copyright (c) 2006-2024 sqlmap developers (https://sqlmap.org/) |
| 5 | +See the file 'LICENSE' for copying permission |
| 6 | +""" |
| 7 | + |
| 8 | +import re |
| 9 | + |
| 10 | +from xml.sax.handler import ContentHandler |
| 11 | + |
| 12 | +from lib.core.common import Backend |
| 13 | +from lib.core.common import parseXmlFile |
| 14 | +from lib.core.common import sanitizeStr |
| 15 | +from lib.core.data import kb |
| 16 | +from lib.core.data import paths |
| 17 | +from lib.core.enums import DBMS |
| 18 | +from lib.parse.handler import FingerprintHandler |
| 19 | + |
| 20 | +class MSSQLBannerHandler(ContentHandler): |
| 21 | + """ |
| 22 | + This class defines methods to parse and extract information from the |
| 23 | + given Microsoft SQL Server banner based upon the data in XML file |
| 24 | + """ |
| 25 | + |
| 26 | + def __init__(self, banner, info): |
| 27 | + ContentHandler.__init__(self) |
| 28 | + |
| 29 | + self._banner = sanitizeStr(banner or "") |
| 30 | + self._inVersion = False |
| 31 | + self._inServicePack = False |
| 32 | + self._release = None |
| 33 | + self._version = "" |
| 34 | + self._versionAlt = None |
| 35 | + self._servicePack = "" |
| 36 | + self._info = info |
| 37 | + |
| 38 | + def _feedInfo(self, key, value): |
| 39 | + value = sanitizeStr(value) |
| 40 | + |
| 41 | + if value in (None, "None"): |
| 42 | + return |
| 43 | + |
| 44 | + self._info[key] = value |
| 45 | + |
| 46 | + def startElement(self, name, attrs): |
| 47 | + if name == "signatures": |
| 48 | + self._release = sanitizeStr(attrs.get("release")) |
| 49 | + |
| 50 | + elif name == "version": |
| 51 | + self._inVersion = True |
| 52 | + |
| 53 | + elif name == "servicepack": |
| 54 | + self._inServicePack = True |
| 55 | + |
| 56 | + def characters(self, content): |
| 57 | + if self._inVersion: |
| 58 | + self._version += sanitizeStr(content) |
| 59 | + elif self._inServicePack: |
| 60 | + self._servicePack += sanitizeStr(content) |
| 61 | + |
| 62 | + def endElement(self, name): |
| 63 | + if name == "signature": |
| 64 | + for version in (self._version, self._versionAlt): |
| 65 | + if version and self._banner and re.search(r" %s[\.\ ]+" % re.escape(version), self._banner): |
| 66 | + self._feedInfo("dbmsRelease", self._release) |
| 67 | + self._feedInfo("dbmsVersion", self._version) |
| 68 | + self._feedInfo("dbmsServicePack", self._servicePack) |
| 69 | + break |
| 70 | + |
| 71 | + self._version = "" |
| 72 | + self._versionAlt = None |
| 73 | + self._servicePack = "" |
| 74 | + |
| 75 | + elif name == "version": |
| 76 | + self._inVersion = False |
| 77 | + self._version = self._version.replace(" ", "") |
| 78 | + |
| 79 | + match = re.search(r"\A(?P<major>\d+)\.00\.(?P<build>\d+)\Z", self._version) |
| 80 | + self._versionAlt = "%s.0.%s.0" % (match.group('major'), match.group('build')) if match else None |
| 81 | + |
| 82 | + elif name == "servicepack": |
| 83 | + self._inServicePack = False |
| 84 | + self._servicePack = self._servicePack.replace(" ", "") |
| 85 | + |
| 86 | +def bannerParser(banner): |
| 87 | + """ |
| 88 | + This function calls a class to extract information from the given |
| 89 | + DBMS banner based upon the data in XML file |
| 90 | + """ |
| 91 | + |
| 92 | + xmlfile = None |
| 93 | + |
| 94 | + if Backend.isDbms(DBMS.MSSQL): |
| 95 | + xmlfile = paths.MSSQL_XML |
| 96 | + elif Backend.isDbms(DBMS.MYSQL): |
| 97 | + xmlfile = paths.MYSQL_XML |
| 98 | + elif Backend.isDbms(DBMS.ORACLE): |
| 99 | + xmlfile = paths.ORACLE_XML |
| 100 | + elif Backend.isDbms(DBMS.PGSQL): |
| 101 | + xmlfile = paths.PGSQL_XML |
| 102 | + |
| 103 | + if not xmlfile: |
| 104 | + return |
| 105 | + |
| 106 | + if Backend.isDbms(DBMS.MSSQL): |
| 107 | + handler = MSSQLBannerHandler(banner, kb.bannerFp) |
| 108 | + parseXmlFile(xmlfile, handler) |
| 109 | + |
| 110 | + handler = FingerprintHandler(banner, kb.bannerFp) |
| 111 | + parseXmlFile(paths.GENERIC_XML, handler) |
| 112 | + else: |
| 113 | + handler = FingerprintHandler(banner, kb.bannerFp) |
| 114 | + parseXmlFile(xmlfile, handler) |
| 115 | + parseXmlFile(paths.GENERIC_XML, handler) |
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