CVE-2011-3377: Medium severity red hat icedtea-web vulnerability
Deepak Bhole discovered a flaw in the Same Origin Policy (SOP) implementation in the IcedTea project Web browser plugin. A malicious applet could use this flaw to bypass SOP protection and open connections to any sub-domain of the second-level domain of the applet's origin, as well as any sub-domain of the domain that is the suffix of the origin second-level domain. For example, IcedTea-Web plugin allowed applet from some.host.example.com to connect to other.host.example.com, www.example.com, and example.com, as well as www.ample.com or ample.com.
Other sources
The web browser plug-in in IcedTea-Web 1.0.x before 1.0.6 and 1.1.x before 1.1.4 allows remote attackers to bypass the Same Origin Policy (SOP) and execute arbitrary script or establish network connections to unintended hosts via an applet whose origin has the same second-level domain, but a different sub-domain than the targeted domain.
— MITRE
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2011-3377?
CVE-2011-3377 has a severity rating of medium due to its potential to bypass the Same Origin Policy.
How do I fix CVE-2011-3377?
To fix CVE-2011-3377, upgrade to IcedTea-Web version 1.1.4 or later.
Which software is affected by CVE-2011-3377?
CVE-2011-3377 affects IcedTea-Web versions prior to 1.1.4 and includes various versions such as 1.0.6 and 1.1.
Can CVE-2011-3377 be exploited remotely?
Yes, CVE-2011-3377 can be exploited by a malicious applet to bypass security measures remotely.
Is there a known workaround for CVE-2011-3377?
There are no known workarounds for CVE-2011-3377 other than applying the available software updates.