Snort Time To Live Fragment Reassembly Security Bypass Weakness

BID:29327

Info

Snort Time To Live Fragment Reassembly Security Bypass Weakness

Bugtraq ID: 29327
Class: Design Error
CVE: CVE-2008-1804
Remote: Yes
Local: No
Published: May 21 2008 12:00AM
Updated: Apr 13 2015 08:24PM
Credit: Silvio Cesare
Vulnerable: Snort Project Snort 2.6
Snort Project Snort 2.8
Red Hat Fedora 7
Mandriva Linux Mandrake 2008.1 x86_64
Mandriva Linux Mandrake 2008.1
Mandriva Linux Mandrake 2008.0 x86_64
Mandriva Linux Mandrake 2008.0
IPCop IPCop 1.4.18
IPCop IPCop 1.4.17
IPCop IPCop 1.4.16
IPCop IPCop 1.4.15
IPCop IPCop 1.4.14
IPCop IPCop 1.4.13
IPCop IPCop 1.4.12
IPCop IPCop 1.4.11
IPCop IPCop 1.4.10
Not Vulnerable: Snort Project Snort 2.8.1
IPCop IPCop 1.4.20
IPCop IPCop 1.4.19

Discussion

Snort Time To Live Fragment Reassembly Security Bypass Weakness

Snort is prone to a security-bypass weakness because of a design error affected by the Time To Live values of disassembled network packets.

Attackers can exploit this issue to bypass all Snort rules. This may facilitate further attacks.

This issue affects Snort 2.8 and 2.6 on multiple platforms.

Exploit / POC

Snort Time To Live Fragment Reassembly Security Bypass Weakness

To leverage this issue, attackers can use readily available network utilities.

Solution / Fix

Snort Time To Live Fragment Reassembly Security Bypass Weakness

Solution:
Updates are available. Please see the references for more information.


Mandriva Linux Mandrake 2008.1 x86_64

Mandriva Linux Mandrake 2008.1

Snort Project Snort 2.8

Mandriva Linux Mandrake 2008.0 x86_64

Mandriva Linux Mandrake 2008.0

Snort Project Snort 2.6

References

Snort Time To Live Fragment Reassembly Security Bypass Weakness

References:

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