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TITLE:
nfs-utils TCP Wrappers NFS Netgroups Security Bypass

SECUNIA ADVISORY ID:
SA32346

VERIFY ADVISORY:
http://secunia.com/advisories/32346/

CRITICAL:
Less critical

IMPACT:
Security Bypass

WHERE:
>From local network

SOFTWARE:
nfs-utils 1.x
http://secunia.com/advisories/product/1866/

DESCRIPTION:
A security issue has been reported in nfs-utils, which can be
exploited by malicious people to bypass certain security
restrictions.

The security issue is caused due to the TCP wrappers implementation
calling the "hosts_ctl()" function with a wrong order of arguments.
This can be exploited to bypass access control rules imposed on NFS
netgroups and gain access to restricted services. 

The security issue is reported in version 1.0.9. Other versions prior
to 1.1.3 may also be affected.

SOLUTION:
Update to version 1.1.3 or later.

PROVIDED AND/OR DISCOVERED BY:
Reported by Michele Marcionelli in a Red Hat bug report.

ORIGINAL ADVISORY:
https://bugzilla.redhat.com/show_bug.cgi?id=458676

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