psInclude Input Validation Flaw in 'template' Variable Lets Remote Users Execute Arbitrary Code
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SecurityTracker Alert ID: 1009569 |
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SecurityTracker URL: http://securitytracker.com/id/1009569
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CVE Reference:
GENERIC-MAP-NOMATCH
(Links to External Site)
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Date: Mar 28 2004
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Impact:
Execution of arbitrary code via network, User access via network
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Fix Available: Yes Vendor Confirmed: Yes Exploit Included: Yes
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Version(s): prior to version 1.42
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Description:
Harris JeJENg reported in input validation vulnerability in psInclude. A remote user can execute arbitrary commands on the target system.
It is reported that the 'psinclude.cgi' script does not properly validate user-supplied input in the 'template' variable before passing the input to an open() statement. A remote user can supply a specially crafted URL to execute arbitrary operating system commands on the target system.
A demonstration exploit URL is provided:
/cgi-bin/psinclude.cgi?template=|uname%20-a;uptime|
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Impact:
A remote user can execute arbitrary operating system commands on the target system with the privileges of the target web service.
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Solution:
The vendor has released a fixed version (1.42), available at:
http://www.psyon.org/projects/psinclude/
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Vendor URL: www.psyon.org/projects/psinclude/ (Links to External Site)
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Cause:
Input validation error
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Underlying OS:
Linux (Any), UNIX (Any)
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Message History:
None.
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Source Message Contents
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Date: Wed, 24 Mar 2004 12:04:32 -0800 (PST)
Subject: psinclude vulnerabilities
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psinclude vulnerabilities
1. Problem
2. Exploit
3. Info
1. A remote user can execute arbitrary shell commands
with the privileges of the target web server couse
cgi' script does not filter user-supplied input before
making an open() call based on that input. A remote
user can create a specially crafted URL to cause the
system to execute arbitrary operating
system commands.
2. www.site.com//cgi-bin/psinclude.cgi?template=|uname
-a;uptime|
3. Vendor URL: www.psyon.org/projects/psinclude
Reported By: Harris JeJENg (jejeng_ptn@yahoo.com)
greeting : For All #MinangCrew member at dalnet
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