Horde Application Framework <=3.3.8 XSS Vulnerability

2010.11.12

Credit: Moritz Naumann

Risk: Low

Local: No

Remote: Yes

CVE: CVE-2010-3077

CWE: CWE-79

CVSS Base Score: 4.3/10

Impact Subscore: 2.9/10

Exploitability Subscore: 8.6/10

Exploit range: Remote

Attack complexity: Medium

Authentication: No required

Confidentiality impact: None

Integrity impact: Partial

Availability impact: None

Hi,
Horde Application Framework v3.3.8 and lower are subject to a cross site
scripting (XSS) vulnerability.
The icon_browser.php script fails to properly sanitize user supplied
input to the 'subdir' URL parameter before printing it out as part of a
HTML formatted error message.
The following URL can be used as a proof of concept:
[path_to_horde]/util/icon_browser.php?subdir=<body onload="alert('XSS')">&app=horde
Prior authentication is not required for exploitation.
This vulnerability was reported to the Horde Project on 19.05.2010 and
fixed by Michael M. Slusarz in the frameworks' GIT repository within a week:
http://git.horde.org/diff.php/horde/util/icon_browser.php?rt=horde-git&r1=a978a35c3e95e784253508fd4333d2fbb64830b6&r2=9342addbd2b95f184f230773daa4faf5ef6d65e9
Hoping to see an upcoming fixed release (which did not take place)
I have delayed publication - admittedly too much.
Credits for this discovery:
Moritz Naumann
Naumann IT Security Consulting, Berlin, Germany
http://moritz-naumann.com
Moritz

References:

http://seclists.org/fulldisclosure/2010/Sep/82

http://lists.horde.org/archives/announce/2010/000557.html

http://git.horde.org/diff.php/horde/util/icon_browser.php?rt=horde-git&r1=a978a35c3e95e784253508fd4333d2fbb64830b6&r2=9342addbd2b95f184f230773daa4faf5ef6d65e9

https://bugzilla.redhat.com/show_bug.cgi?id=630687

See this note in RAW Version

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Horde Application Framework <=3.3.8 XSS Vulnerability

References:

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