CVE-2006-4436
First published: Tue Aug 29 2006(Updated: )
isakmpd in OpenBSD 3.8, 3.9, and possibly earlier versions, creates Security Associations (SA) with a replay window of size 0 when isakmpd acts as a responder during SA negotiation, which allows remote attackers to replay IPSec packets and bypass the replay protection.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| OpenBSD | =3.8 | |
| OpenBSD | =3.9 |
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Reference Links
- http://www.openbsd.org/errata38.html#isakmpd
- http://www.openbsd.org/errata.html#isakmpd
- http://www.securityfocus.com/bid/19712
- http://securitytracker.com/id?1016757
- http://secunia.com/advisories/21652
- http://www.osvdb.org/28194
- http://www.debian.org/security/2006/dsa-1175
- http://secunia.com/advisories/21905
- https://exchange.xforce.ibmcloud.com/vulnerabilities/28645
Frequently Asked Questions
What is the severity of CVE-2006-4436?
CVE-2006-4436 is considered a high severity vulnerability due to its potential to allow remote attackers to replay IPSec packets.
How do I fix CVE-2006-4436?
To fix CVE-2006-4436, it is recommended to upgrade to a patched version of OpenBSD that addresses the replay window issue.
What versions of OpenBSD are affected by CVE-2006-4436?
OpenBSD versions 3.8 and 3.9 are affected by CVE-2006-4436.
What attack vector is utilized in CVE-2006-4436?
CVE-2006-4436 allows remote attackers to exploit a replay attack through a flaw in the Security Association negotiation process.
What is the impact of CVE-2006-4436 on IPSec communications?
The impact of CVE-2006-4436 on IPSec communications is the potential bypass of replay protection, compromising the security of the communications.
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