Advisory ID: HTB23192
Product: Burden
Vendor: Josh Fradley
Vulnerable Version(s): 1.8 and probably prior
Tested Version: 1.8
Advisory Publication: December 18, 2013 [without technical details]
Vendor Notification: December 18, 2013=20
Vendor Patch: December 18, 2013=20
Public Disclosure: January 8, 2014=20
Vulnerability Type: Improper Authentication [CWE-287]
CVE Reference: CVE-2013-7137
Risk Level: High=20
CVSSv2 Base Score: 7.5 (AV:N/AC:L/Au:N/C:P/I:P/A:P)
Solution Status: Fixed by Vendor
Discovered and Provided: High-Tech Bridge Security Research Lab ( https://w=
ww.htbridge.com/advisory/ )=20
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Advisory Details:
High-Tech Bridge Security Research Lab discovered vulnerability in applicat=
ion authentication mechanism in Burden, which can be exploited by remote no=
n-authenticated attacker to gain administrative access to the vulnerable ap=
plication.
1) Improper Authentication in Burden: CVE-2013-7137
The vulnerability exists due to insufficient authentication when handling "=
burden_user_rememberme" cookie parameter. A remote unauthenticated user can=
set "burden_user_rememberme" cookie to "1" and gain administrative access =
to the application.=20
The exploitation example below shows HTTP GET request that grants administr=
ative privileges to the user:
GET /login.php HTTP/1.1
Cookie: burden_user_rememberme=3D1;
The cookie can be also changed using a browser plugin such as Firebug for F=
ireFox.
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Solution:
Update to Burden 1.8.1
More Information:
https://github.com/joshf/Burden/releases/tag/1.8.1
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References:
[1] High-Tech Bridge Advisory HTB23192 - https://www.htbridge.com/advisory/=
HTB23192 - Improper Authentication in Burden.
[2] Burden - https://github.com/joshf - Burden is a full featured task mana=
gement app written in PHP.
[3] Common Vulnerabilities and Exposures (CVE) - http://cve.mitre.org/ - in=
ternational in scope and free for public use, CVE=C2=AE is a dictionary of =
publicly known information security vulnerabilities and exposures.
[4] Common Weakness Enumeration (CWE) - http://cwe.mitre.org - targeted to =
developers and security practitioners, CWE is a formal list of software wea=
kness types.
[5] ImmuniWeb=C2=AE - http://www.htbridge.com/immuniweb/ - is High-Tech Bri=
dge's proprietary web application security assessment solution with SaaS de=
livery model that combines manual and automated vulnerability testing.
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Disclaimer: The information provided in this Advisory is provided "as is" a=
nd without any warranty of any kind. Details of this Advisory may be update=
d in order to provide as accurate information as possible. The latest versi=
on of the Advisory is available on web page [1] in the References.