Core Security Technologies Advisory 2010.1109

Type packetstorm
Reporter Core Security Technologies
Modified 2010-12-01T00:00:00


                                            ` Core Security Technologies - CoreLabs Advisory  
Multiple vulnerabilities in BugTracker.Net  
1. *Advisory Information*  
Title: Multiple vulnerabilities in BugTracker.Net  
Advisory Id: CORE-2010-1109  
Advisory URL:  
Date published: 2010-11-30  
Date of last update: 2010-11-30  
Vendors contacted: BugTracker.NET team  
Release mode: Coordinated release  
2. *Vulnerability Information*  
Class: Cross site scripting [CWE-79], SQL injection [CWE-89]  
Impact: Code execution  
Remotely Exploitable: Yes  
Locally Exploitable: No  
CVE Name: CVE-2010-3266, CVE-2010-3267  
Bugtraq ID: N/A  
3. *Vulnerability Description*  
BugTracker.NET [1][2] is an open-source web-based bug tracker written  
using ASP.NET, C#, and Microsoft SQL Server. Several cross-site  
scripting and SQL-injection vulnerabilities were found in the following  
files of the BugTracker.NET:  
. *bugs.aspx*. SQL injection in line 141.  
. *delete_query.aspx*. No sanitization for 'row_id.Value' in line 30.  
. *edit_bug.aspx*. Variables without sanitization in lines 1846 and 1857.  
. *edit_bug.aspx*. No sanitization for variable 'new_project', line 2214.  
. *edit_bug.aspx*. XSS in line 2918.  
. *edit_comment.aspx*. XSS in line 233.  
. *edit_customfield.aspx*. Lines 165 and 172, no sanitization.  
. *edit_user_permissions2.aspx*. XSS in line 40.  
. *massedit.aspx*. SQL Injection in line 162.  
4. *Vulnerable packages*  
. BugTracker.NET v3.4.4.  
. Older versions are probably affected too, but they were not checked.  
5. *Non-vulnerable packages*  
. BugTracker.NET v3.4.5.  
6. *Credits*  
This vulnerability was discovered and researched by Damián Saura  
and Alejandro Frydman from Core Security Technologies.  
7. *Technical Description / Proof of Concept Code*  
7.1. *XSS Vulnerabilities*  
[CVE-2010-3266 | N/A]. All XSS vulnerabilities can be exploited in  
similar ways. The following proof of concept shows how to exploit the  
XSS founded in 'edit_comment.aspx':  
230 <div class=align>  
231 <table border=0><tr><td>  
233 <a href=edit_bug.aspx?id=<%  
Response.Write(Request["bug_id"]);%>>back to <%  
Response.Write(btnet.Util.get_setting("SingularBugLabel","bug")); %></a>  
234 <form class=frm runat="server">  
236 <table border=0>  
First, login to BugTracker and create a comment in a previously created  
bug. Then, edit it using this URL:  
As a result, the JavaScript code injected into the parameter 'bug_id'  
will be rendered without sanitization in the line 233, and executed in  
the context of the client's web browser.  
7.2. *SQL Injection Vulnerabilities*  
[CVE-2010-3267 | N/A]. All SQL injection vulnerabilities can also be  
exploited in similar ways. Consider, for example, the code located in  
26 if (IsPostBack)  
27 {  
28 // do delete here  
29 sql = @"delete queries where qu_id = $1";  
30 sql = sql.Replace("$1", row_id.Value);  
31 btnet.DbUtil.execute_nonquery(sql);  
32 Server.Transfer ("queries.aspx");  
33 }  
In line 30, the value of 'row_id' is injected without sanitization into  
the SQL query. This value arrives to the server in a hidden field of a  
client request. As a result, a malicious user can manipulate this value  
in order to execute code in the database layer of the application.  
8. *Report Timeline*  
. 2010-11-29:  
Core Security Technologies notifies the BugTracker team of the  
vulnerability, setting the estimated publication date of the advisory to  
December 20th 2010.  
. 2010-11-29:  
The BugTracker team asks Core for a technical description of the  
. 2010-11-29:  
Technical details sent to BugTracker team.  
. 2010-11-29:  
The BugTracker team acknowledges the report and notifies they will fix  
all issues in 1 or 2 working days.  
. 2010-11-30:  
The BugTracker team notifies that a patched version is publicly  
available at Sourceforge and Codeplex.  
. 2010-11-30:  
The advisory CORE-2010-1109 is published.  
9. *References*  
[1] BugTracker.NET official website:  
[2] BugTracker.NET Source Forge project:  
10. *About CoreLabs*  
CoreLabs, the research center of Core Security Technologies, is charged  
with anticipating the future needs and requirements for information  
security technologies. We conduct our research in several important  
areas of computer security including system vulnerabilities, cyber  
attack planning and simulation, source code auditing, and cryptography.  
Our results include problem formalization, identification of  
vulnerabilities, novel solutions and prototypes for new technologies.  
CoreLabs regularly publishes security advisories, technical papers,  
project information and shared software tools for public use at:  
11. *About Core Security Technologies*  
Core Security Technologies develops strategic solutions that help  
security-conscious organizations worldwide develop and maintain a  
proactive process for securing their networks. The company's flagship  
product, CORE IMPACT, is the most comprehensive product for performing  
enterprise security assurance testing. CORE IMPACT evaluates network,  
endpoint and end-user vulnerabilities and identifies what resources are  
exposed. It enables organizations to determine if current security  
investments are detecting and preventing attacks. Core Security  
Technologies augments its leading technology solution with world-class  
security consulting services, including penetration testing and software  
security auditing. Based in Boston, MA and Buenos Aires, Argentina, Core  
Security Technologies can be reached at 617-399-6980 or on the Web at  
12. *Disclaimer*  
The contents of this advisory are copyright (c) 2010 Core Security  
Technologies and (c) 2010 CoreLabs, and are licensed under a Creative  
Commons Attribution Non-Commercial Share-Alike 3.0 (United States)  
License: []  
13. *PGP/GPG Keys*  
This advisory has been signed with the GPG key of Core Security  
Technologies advisories team, which is available for download at