|
OpenBSD isakmpd IPSec Sequence Number Verification Bypass
|
|
Secunia Advisory:
|
SA21652
|
|
|
Release Date:
|
2006-08-28
|
|
Last Update:
|
2006-08-29
|
|
Popularity:
|
9,415 views
|
|
|
Critical:
|
Moderately critical
|
|
Impact:
|
Security Bypass
|
|
Where:
|
From remote
|
|
Solution Status:
|
Vendor Patch
|
|
| OS: | OpenBSD 3.x
|
|
|
Subscribe:
|
Instant alerts on relevant vulnerabilities 
|
|
| CVE reference: | CVE-2006-4436
|
|
Description:
A security issue has been reported in OpenBSD, which can be exploited by malicious people to bypass certain security restrictions.
The security issue is caused due to isakmpd creating a replay window of size 0 when responding to SA negotiations, which can be exploited by an attacker to capture IPSec packets and subsequently replay them.
Solution:
Apply patches.
OpenBSD 3.9:
ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.9/common/008_isakmpd.patch
OpenBSD 3.8:
ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.8/common/013_isakmpd.patch
Provided and/or discovered by:
Reported by the vendor.
Changelog:
2006-08-29: Added CVE reference.
Original Advisory:
http://www.openbsd.org/errata.html
|
|
|
Track this Secunia Advisory
|
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released.
Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.
|
|
|
About this Secunia Advisory
|
Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
|
