EMC Networker nsrexecd.exe buffer overflow

networker-nsrexecd-bo (36123) The risk level is classified as HighHigh Risk

Description:

EMC Networker is vulnerable to a stack-based buffer overflow, caused by improper bounds checking by the Networker Remote Exec Service (nsrexecd.exe). By sending an overly long invalid subcmd to a poll or a specially-crafted kill request, a remote attacker could overflow a buffer and execute arbitrary code on the system or cause the application to crash.

*CVSS:

Base Score: 7.5
  Access Vector: Network
  Access Complexity: Low
  Authentication: None
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 5.7
  Exploitability: Unproven
  Remediation Level: Temporary-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

Refer to knowledge base article esg83899 for patch, upgrade, or suggested workaround information, available from the EMC Powerlink Web site after login. See References.

References:

  • EMC Networker Web site: Networker.
  • EMC Powerlink Web site: EMC Powerlink.
  • ZDI-07-049: EMC Legato Networker Remote Exec Service Stack Overflow Vulnerabilities.
  • BID-25375: EMC Legato Networker Remote Exec Service Stack Buffer Overflow Vulnerability
  • CVE-2007-3618: Stack-based buffer overflow in the NetWorker Remote Exec Service (nsrexecd.exe) in EMC Software NetWorker 7.x.x allows remote attackers to execute arbitrary code via a (1) poll or (2) kill request with a long invalid subcmd.
  • OSVDB ID: 39744: EMC NetWorker Remote Exec Service (nsrexecd.exe) Remote Overflow
  • SA26517: EMC NetWorker Remote Exec Service Buffer Overflow
  • SECTRACK ID: 1018590: EMC Legato NetWorker `subcmd` Stack Overflow Lets Remote Users Execute Arbitrary Code
  • VUPEN/ADV-2007-2931: EMC Legato Networker Remote Exec Service Stack Overflow Vulnerabilities

Platforms Affected:

  • EMC Legato NetWorker 7.0
  • EMC Legato NetWorker 7.1.3
  • EMC Legato NetWorker 7.2
  • EMC Legato NetWorker 7.2.1
  • EMC Legato NetWorker 7.3.2

Reported:

Aug 20, 2007

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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 IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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