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VMware ESXi and ESX address an NFC Protocol Unhandled Exception

VMware Security Advisory
Advisory ID: VMSA-2013-0011
Synopsis: VMware ESXi and ESX address an NFC Protocol Unhandled Exception
Issue date: 2013-08-29
Updated on: 2013-08-29 (initial advisory)
CVE numbers: CVE-2013-1661
1. Summary

VMware has updated VMware ESXi and ESX to address a vulnerability in an unhandled exception in the NFC protocol handler.
2. Relevant releases

      VMware ESXi 5.1 without patch ESXi510-201307101
      VMware ESXi 5.0 without patch ESXi500-201308101     
      VMware ESXi 4.1 without patch ESXi410-201304401
      VMware ESXi 4.0 without patch ESXi400-201305401

      VMware ESX 4.1 without patch ESX410-201304401
      VMware ESX 4.0 without patch ESX400-201305401

3. Problem Description
a. VMware ESXi and ESX NFC Protocol Unhandled Exception

      VMware ESXi and ESX contain a vulnerability in the handling of
      the Network File Copy (NFC) protocol. To exploit this
      vulnerability, an attacker must intercept and modify the NFC
      traffic between ESXi/ESX and the client.  Exploitation of the
      issue may lead to a Denial of Service.

      To reduce the likelihood of exploitation, vSphere components should
      be deployed on an isolated management network

      VMware would like to thank Alex Chapman of Context Information
      Security for reporting this issue to us.

      The Common Vulnerabilities and Exposures project (
      has assigned the name CVE-2013-1661 to this issue.

      Column 4 of the following table lists the action required to
      remediate the vulnerability in each release, if a solution is

VMware Product Running Replace with / 
Product Version on Apply Patch
vCenter Server any any not affected
hosted* any any not affected
ESXi 5.1 ESXi ESXi510-201307101-SG
ESXi 5.0 ESXi ESXi500-201308101-SG
ESXi 4.1 ESXi ESXi410-201304401-SG
ESXi 4.0 ESXi ESXi400-201305401-SG
ESX 4.1 ESX ESX410-201304401-SG
ESX 4.0 ESX ESX400-201305401-SG

* hosted products are VMware Workstation, Player, ACE, Fusion.

4. Solution

Please review the patch/release notes for your product and version
      and verify the checksum of your downloaded file.

      ESXi and ESX

      ESXi 5.1
      md5sum: 24065646806665d176a373bf9a861f98
      sha1sum: c07a9361df8d9adcd2ff1f8e949d41fbeb091f0f
      ESXi510-201307001 contains ESXi510-201307101-SG

      ESXi 5.0
      md5sum: 90d20a6921f35ededfc5021afeedc63f
      ESXi500-201308001 contains ESXi500-201308101-SG

      ESXi 4.1
      md5sum: 9ce63bcacb3412fc1c8a6a8c47ac6af6
      sha1sum: 241603ef6b856e573a62fe27da039c8fffe54b1d
      ESXi410-201304001 contains ESXi410-201304401-SG

      ESXi 4.0
      md5sum: 065d3fa4b0f52dd38c2bd92e5bfc5580
      sha1sum: 1f3cab25a144746372d86071a47e569c439e276a
      ESXi400-201305001 contains ESXi400-201305401-SG

      ESX 4.1
      md5sum: df9ef1d25f383a12d2fbc47cdc5f55d2
      sha1sum: e49068da7cf7e0ada57c4604cbc9ba253c03e3a0
      ESX410-201304001 contains ESX410-201304401-SG

      ESX 4.0
      md5sum: c9ac91d3d803c7b7cb9df401c20b91c0
      sha1sum: 7f5cef274c709248daa56d8c0e6fcc1ba86ae411
      ESX400-201305001 contains ESX400-201305401-SG

6. Change log

      2013-08-29 VMSA-2013-0011
      Initial security advisory in conjunction with the release of
      ESX 5.0 patches on 2013-08-29
7. Contact

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      This Security Advisory is posted to the following lists:

      * security-announce at
      * bugtraq at
      * full-disclosure at

      E-mail: security at
      PGP key at:

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