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Guestex Shell Command Injection and Cross-Site Scripting
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Secunia Advisory:
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SA18927
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Release Date:
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2006-02-17
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Last Update:
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2006-06-09
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Popularity:
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5,644 views
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Critical:
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Highly critical
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Impact:
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Cross Site Scripting
System access
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Where:
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From remote
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Solution Status:
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Unpatched
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| Software: | Guestex 1.x
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| CVE reference: | CVE-2006-0776
CVE-2006-0777
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Description:
Aliaksandr Hartsuyeu has reported two vulnerabilities in Guestex, which can be exploited by malicious people to conduct cross-site scripting attacks and to compromise a vulnerable system.
1) Input passed to the "email" parameter in guestex.pl isn't properly sanitised before being passed to sendmail as an argument. This can be exploited to inject arbitrary shell commands.
2) Input passed to the "url" parameter isn't properly sanitised before being returned to the user. This can be exploited to execute arbitrary HTML and script code in a user's browser session in context of an affected site.
The vulnerabilities have been reported in version 1.0. Other versions may also be affected.
Solution:
Edit the source code to ensure that input is properly sanitised.
Provided and/or discovered by:
Aliaksandr Hartsuyeu
Changelog:
2006-02-23: Added CVE references.
2006-06-09: Updated "Description" section.
Original Advisory:
http://evuln.com/vulns/76/description.html
http://evuln.com/vulns/77/description.html
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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