CVE-2013-4200

Description

The isURLInPortal method in the URLTool class in in_portal.py in Plone 2.1 through 4.1, 4.2.x through 4.2.5, and 4.3.x through 4.3.1 treats URLs starting with a space as a relative URL, which allows remote attackers to bypass the allow_external_login_sites filtering property, redirect users to arbitrary web sites, and conduct phishing attacks via a space before a URL in the "next" parameter to acl_users/credentials_cookie_auth/require_login.

Category

5.8
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 7.52% Top 10%
Vendor Advisory plone.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.openwall.com/lists/oss-security/2013/08/01/2 mailing list
http://plone.org/products/plone/security/advisories/20130618-announcement vendor advisory
http://plone.org/products/plone-hotfix/releases/20130618 patch
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2013-4200
http://www.securityfocus.com/archive/1/530787/100/0/threaded mailing list

Frequently Asked Questions

What is the severity of CVE-2013-4200?
CVE-2013-4200 has been scored as a medium severity vulnerability.
How to fix CVE-2013-4200?
To fix CVE-2013-4200, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2013-4200 being actively exploited in the wild?
It is possible that CVE-2013-4200 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~8% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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