Legato NetWorker AUTH_UNIX bypass authentication

legato-authunix-bypass-authentication (21887) The risk level is classified as HighHigh Risk

Description:

Legato NetWorker could allow a remote attacker to bypass authentication. A remote attacker could spoof the username to bypass nwadmin, nsradmin, and nsrports authentication. A remote attacker could exploit this vulnerability to gain access.

NOTE: Sun StorEdge Enterprise Backup Software and Solstice Backup Software are also affected by this vulnerability.


Consequences:

Gain Access

Remedy:

For Sun StorEdge Enterprise Backup Software:
Apply the appropriate hotfix as listed in the Sun Alert ID: 101886. See References.

For Solstice Backup Software:
Apply the appropriate hotfix as listed in the Sun Alert ID: 101886. See References.

For Legato NetWorker:
Apply the appropriate hotfix as listed in the Legato Technical Product Alert August 16, 2005. See References.

References:

  • CIAC INFIORMATION BULLETIN P-281: Security Vulnerabilities in the Sun StorEdge Enterprise Backup Software.
  • Legato Technical Product Alert August 16, 2005: Authentication and nwadmin, nsradmin, nsrports.
  • Sun Alert ID: 101886: Security Vulnerabilities in the Sun StorEdge Enterprise Backup Software.
  • BID-14582: EMC Legato Networker Multiple Vulnerabilities
  • CVE-2005-0357: EMC Legato NetWorker, Sun Solstice Backup 6.0 and 6.1, and StorEdge Enterprise Backup 7.0 through 7.2 rely on AUTH_UNIX authentication, which relies on user ID for authentication and allows remote attackers to bypass authentication and gain privileges by spoofing a username or UID.
  • OSVDB ID: 18800: Legato NetWorker AUTH_UNIX Authentication Bypass
  • SA16464: Legato NetWorker Multiple Vulnerabilities
  • SA16470: Sun StorEdge Enterprise Backup Vulnerabilities
  • SECTRACK ID: 1014713: Legato NetWorker AUTH_UNIX, Database, and Portmapper Authentication Can Be Bypassed By Remote Users
  • US-CERT VU#606857: EMC Legato NetWorker uses weak AUTH_UNIX authentication

Platforms Affected:

  • EMC Legato NetWorker
  • Sun Solstice Backup 6.0
  • Sun Solstice Backup 6.1
  • Sun StorEdge Enterprise Backup Software 7.0
  • Sun StorEdge Enterprise Backup Software 7.1
  • Sun StorEdge Enterprise Backup Software 7.2

Reported:

Aug 16, 2005

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