TCP Off Path Sequence Number Inference
|Check Point Reference:||CPAI-2013-2938|
|Protection Provided by:||
Who is Vulnerable?
An Internet connection hijack vulnerability has been reported in network devices.
The vulnerability is due to a design flaw which allows an off-path attacker to identify the current sequence range of a TCP connection. The attack does not require attackers to have a man-in-the-middle capability. Successful exploitation could allow an attacker to inject data or hijack the TCP connection.
This protection will detect and block attempts to exploit this vulnerability.
This protection is only applicable for IPS gateway version R75.30 and higher.
In order for the protection to be activated, update your product to the latest update. For information on how to update , go to SBP-2006-05, Protection tab and select the version of your choice.
To configure the defense, select your product from the list below and follow the related protection steps.
Security Gateway R75 / R71 / R70
How Can I Protect My Network?
- In the IPS tab, click Protections and find the TCP Off Path Sequence Number Inference protection using the Search tool and Edit the protection's settings.
- Install policy on all modules.
How Do I Know if My Network is Under Attack?
SmartView Tracker will log the following entries:
Attack Name: TCP Enforcement Violation
Attack Information: TCP Off Path Sequence Number Inference