[SA16464] Legato NetWorker Multiple Vulnerabilities

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TITLE:
Legato NetWorker Multiple Vulnerabilities

SECUNIA ADVISORY ID:
SA16464

VERIFY ADVISORY:
http://secunia.com/advisories/16464/

CRITICAL:
Moderately critical

IMPACT:
Security Bypass, Exposure of system information, Exposure of
sensitive information, DoS

WHERE:
>From local network

SOFTWARE:
Legato NetWorker 6.x
http://secunia.com/product/730/
Legato NetWorker 7.x
http://secunia.com/product/2692/

DESCRIPTION:
Three vulnerabilities have been reported in Legato NetWorker, which
can be exploited by malicious people to cause a DoS (Denial of
Service), gain knowledge of sensitive information, or bypass certain
security restrictions.

1) An error in the AUTH_UNIX authentication for the RPC service can
be exploited to bypass the authentication to the nwadmin, nsradmin,
and nsrports components by providing a fake user name or to the
recover and nsrececd components by providing a fake UID.

2) An error in the token-based authentication to the database
services can be exploited to gain administrative privileges without
being listed in the administrator list by sending a specially crafted
token.

3) The portmapper (lgtomapper) allows calls to pmap_set and
pmap_unset, which can be exploited to register and unregister RPC
services thereby causing a DoS or potentially eavesdrop on NetWorker
process communication.

SOLUTION:
Apply patches LGTpa74792, LGTpa78968, and LGTpa78969 (for versions
7.1.3 and 7.2).
http://www.legato.com/support/websupport/patches_updates/networker_security_hotfix.htm

Fixes will also be included in the next release of Legato NetWorker.

PROVIDED AND/OR DISCOVERED BY:
Reported by vendor.

ORIGINAL ADVISORY:
EMC Corporation:
http://www.legato.com/support/websupport/product_alerts/081605_NW-7x.htm

OTHER REFERENCES:
US-CERT VU#407641:
http://www.kb.cert.org/vuls/id/407641

US-CERT VU#606857:
http://www.kb.cert.org/vuls/id/606857

US-CERT VU#801089:
http://www.kb.cert.org/vuls/id/801089

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