CVE-2008-1804
First published: Thu May 22 2008(Updated: )
preprocessors/spp_frag3.c in Sourcefire Snort before 2.8.1 does not properly identify packet fragments that have dissimilar TTL values, which allows remote attackers to bypass detection rules by using a different TTL for each fragment.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Snort | <=2.8.0 |
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Reference Links
- http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=701
- http://cvs.snort.org/viewcvs.cgi/snort/ChangeLog?rev=1.534.2.11
- http://cvs.snort.org/viewcvs.cgi/snort/src/preprocessors/spp_frag3.c.diff?r1=text&tr1=1.46.2.4&r2=text&tr2=1.46.2.5&diff_format=h
- http://www.securityfocus.com/bid/29327
- http://securitytracker.com/id?1020081
- http://secunia.com/advisories/30348
- http://www.ipcop.org/index.php?name=News&file=article&sid=40
- http://secunia.com/advisories/31204
- https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00198.html
- https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00167.html
- https://www.redhat.com/archives/fedora-package-announce/2008-June/msg00156.html
- http://secunia.com/advisories/30563
- http://www.vupen.com/english/advisories/2008/1602
- https://exchange.xforce.ibmcloud.com/vulnerabilities/42584
Frequently Asked Questions
What is the severity of CVE-2008-1804?
CVE-2008-1804 is rated as a medium severity vulnerability due to its potential to bypass detection mechanisms.
How do I fix CVE-2008-1804?
To fix CVE-2008-1804, upgrade to Snort version 2.8.1 or later, which addresses the vulnerability.
What type of attack does CVE-2008-1804 facilitate?
CVE-2008-1804 facilitates remote attackers in bypassing detection rules through manipulation of packet fragment TTLs.
Which versions of Snort are affected by CVE-2008-1804?
CVE-2008-1804 affects Snort versions prior to 2.8.1, specifically those up to and including 2.8.0.
What is the impact of CVE-2008-1804 on network security?
The impact of CVE-2008-1804 on network security includes an increased risk of undetected malicious activity due to fragment evasion tactics.
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