15804 : BIG-IP / 3-DNS Radius Authentication login_radius Security Bypass
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Info

Last Modified
7 months ago

Percent Complete
100%

Disclosure
Apr 25, 2005

Discovery
Sep 10, 2004

Dates

Exploit
Sep 22, 2004

Solution
Unknown

Description

 F5 Big-IP and 3DNS contain a flaw that may allow a malicious user to bypass RADIUS authentication. The issue is triggered when an attacker sends a specially-crafted RADIUS ACCEPT packet response, with the origin set as the radius server, and the login_radius function fails to properly check the shared secret, resulting in a loss of integrity.

Classification

 Location: Remote/Network Access Required
Attack Type: Authentication Management
Impact: Loss of Integrity
Exploit: Exploit Available
Disclosure: OSVDB Verified

Solution

 Upgrade to version 3DNS 4.5.11 or higher and Big-IP 4.6.3 or higher, as it has been reported to fix this vulnerability. An upgrade is required as there are no known workarounds.

Products
F5 Networks, Inc.
Watch-list
3DNS
Watch-list
 4.2
4.3
4.4
4.5
4.5.1
4.5.2
4.5.3
4.5.4
4.5.5
4.5.6
4.5.7
4.5.8
4.5.9
4.5.10
4.5.11
BIG-IP
Watch-list
 4.6.1
4.6
4.6.2
4.6.3

References

Manual Testing Notes

Credit
  • Eilko Bos - E.BosBrand New Doo Dooreseau.nl - Le Reseau B.V.

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