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TITLE:
Ruby on Rails Three Cross-Site Scripting Vulnerabilities

SECUNIA ADVISORY ID:
SA50128

VERIFY ADVISORY:
Secunia.com
http://secunia.com/advisories/50128/
Customer Area (Credentials Required)
https://ca.secunia.com/?page=viewadvisory&vuln_id=50128

RELEASE DATE:
2012-08-10

DISCUSS ADVISORY:
http://secunia.com/advisories/50128/#comments

AVAILABLE ON SITE AND IN CUSTOMER AREA:
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 * Criticality Level
 * Impact
 * Where
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 * CVE Reference(s)

http://secunia.com/advisories/50128/

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https://ca.secunia.com/?page=viewadvisory&vuln_id=50128

ONLY AVAILABLE WITH SECUNIA CSI AND SECUNIA PSI:
 * AUTOMATED SCANNING

http://secunia.com/vulnerability_scanning/personal/
http://secunia.com/vulnerability_scanning/corporate/wsus_sccm_3rd_third_party_patching/

DESCRIPTION:
Some vulnerabilities have been reported in Ruby on Rails, which can
be exploited by malicious people to conduct cross-site scripting
attacks.

1) The "strip_tags" helper method does not properly sanitise
malformed HTML, which can be exploited to execute arbitrary HTML and
script code in a user's browser session in context of an affected
site.

2) Input passed via a "prompt" value is not properly sanitised in the
"select_tag" helper method 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.

3) The HTML escaping code functionality does not properly escape a
single quote character, which can be exploited to execute arbitrary
HTML and script code in a user's browser session in context of an
affected site.

The vulnerabilities are reported in versions prior to 3.0.17, prior
to 3.1.8, and prior to 3.2.8.

SOLUTION:
Update to version 3.0.17, 3.1.8, or 3.2.8.

PROVIDED AND/OR DISCOVERED BY:
1) The vendor credits Marek, Nethemba.
2, 3) Reported by the vendor.

ORIGINAL ADVISORY:
Ruby on Rails:
http://weblog.rubyonrails.org/2012/8/9/ann-rails-3-2-8-has-been-released/
https://groups.google.com/forum/?fromgroups#!topic/rubyonrails-security/FgVEtBajcTY
https://groups.google.com/forum/?fromgroups#!topic/rubyonrails-security/fV3QUToSMSw
https://groups.google.com/forum/?fromgroups#!topic/rubyonrails-security/kKGNeMrnmiY

OTHER REFERENCES:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

DEEP LINKS:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED DESCRIPTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXTENDED SOLUTION:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

EXPLOIT:
Further details available in Customer Area:
http://secunia.com/vulnerability_intelligence/

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About:
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vulnerabilities.

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