A vulnerability has been reported in Snort, which can be exploited by malicious people to bypass certain security restrictions.
The vulnerability is caused due to an error in the processing of fragmented IP packets. This can be exploited to bypass Snort rules by sending fragmented IP packets with an overly large TTL (Time To Live) difference between fragments.
The vulnerability is reported in versions 2.6 and 2.8. Prior versions may also be affected.
Solution: Update to version 2.8.1.
Provided and/or discovered by: Silvio Cesare, reported via iDefense
Original Advisory: iDefense:
Do you have additional information related to this advisory?
Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this
information to firstname.lastname@example.org
Subject: Snort Fragmented IP Packets TTL Security Bypass
No posts yet
You must be logged in to post a comment.
Secunia Customer Login
Not a customer already?
Learn more about how our market leading Vulnerability Management solutions can help you manage risk and ensure compliance.