25852 : FreeBSD ypserv securenets Access Control Failure
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Info

Last Modified

about 1 year ago

Percent Complete

100%

Disclosure

May 31, 2006

Discovery

Unknown

Dates

Exploit

Unknown

Solution

Unknown

Keywords

No Keywords

Description

FreeBSD contains a flaw that may allow "securenets" access restrictions to be inadvertantly disabled. The issue is triggered when a change in the build process caused ypserv to fail to load or process the networks and hosts specified in the /var/yp/securenets file. It is possible that the flaw may allow access to NIS maps resulting in a loss of integrity.

Classification

Location: Remote/Network Access Required
Attack Type: Misconfiguration
Impact: Loss of Integrity
Exploit: Exploit Unavailable
Disclosure: OSVDB Verified

Solution

Upgrade to version 5-STABLE or 6-STABLE, or to the RELENG_6_1, RELENG_6_0, RELENG_5_5, RELENG_5_4, or RELENG_5_3 security branch dated after the correction date or higher, as it has been reported to fix this vulnerability. In addition, FreeBSD has released a patch for some older versions. It is also possible to correct the flaw by implementing the following workaround: use /etc/hosts.allow for access control or configure a firewall to restrict access.

Products

FreeBSD Project
Watch-list
FreeBSD
Watch-list
5.3
5.4
6.0
5.5
6.1

References

Credit

  • Hokan -

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