FreeBSD PPP allows all network traffic to bypass the NAT gateway

freebsd-ppp-bypass-gateway (5584) The risk level is classified as MediumMedium Risk

Description:

The FreeBSD PPP incorrectly allows traffic to pass through the NAT gateway. A remote attacker could exploit this to bypass the security policy on the system and perform attacks on the network.

Platforms Affected:

  • FreeBSD, FreeBSD 3.5
  • FreeBSD, FreeBSD 4.0
  • FreeBSD, FreeBSD 4.1
  • FreeBSD, FreeBSD 4.1.1

Remedy:

For FreeBSD 3.x:
Upgrade to the latest version of FreeBSD (3.5.1-STABLE dated after 2000-10-30 or later), as listed in FreeBSD, Inc. Security Advisory FreeBSD-SA-00:70. See References.

For FreeBSD 4.x:
Upgrade to the latest version of FreeBSD (4.1.1-STABLE dated after 2000-10-30, 4.2-RELEASE, or later), as listed in FreeBSD, Inc. Security Advisory FreeBSD-SA-00:70. See References.

Consequences:

Gain Access

References:

Reported:

Nov 14, 2000

The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

For corrections or additions please email xforce@iss.net

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