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AUSCERT External Security Bulletin Redistribution
ESB-2018.1812
Cisco FXOS Software and UCS Fabric Interconnect Multiple Vulnerability
21 June 2018
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AusCERT Security Bulletin Summary
---------------------------------
Product: Cisco FXOS
Cisco UCS Fabric Interconnect
Publisher: Cisco Systems
Operating System: Cisco
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-0302 CVE-2018-0298
Original Bulletin:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-fxos-ace
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-fxos-dos
Comment: This bulletin contains two (2) Cisco Systems security advisories.
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Cisco Security Advisory: Cisco FXOS Software and UCS Fabric Interconnect
Arbitrary Code Execution Vulnerability
Advisory ID: cisco-sa-20180620-fxos-ace
Revision: 1.0
For Public Release: 2018 June 20 16:00 GMT
Last Updated: 2018 June 20 16:00 GMT
CVE ID(s): CVE-2018-0302
CVSS Score v(3): 7.8 CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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Summary
=======
A vulnerability in the CLI parser of Cisco FXOS Software and Cisco UCS Fabric
Interconnect Software could allow an authenticated, local attacker to cause a
buffer overflow on an affected device.
The vulnerability is due to incorrect input validation in the CLI parser
subsystem. An attacker could exploit this vulnerability by exceeding the
expected length of user input. A successful exploit could allow the attacker
to execute arbitrary code with root privileges on the affected system.
Cisco has released software updates that address this vulnerability. There are
no workarounds that address this vulnerability.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-fxos-ace
This advisory is part of the June 2018 Cisco FXOS and NX-OS Software Security
Advisory Collection, which includes 24 Cisco Security Advisories that describe
24 vulnerabilities. For a complete list of the advisories and links to them,
see Cisco Event Response: June 2018 Cisco FXOS and NX-OS Software Security
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Cisco Security Advisory: Cisco FXOS Software and UCS Fabric Interconnect Web
UI Denial of Service Vulnerability
Advisory ID: cisco-sa-20180620-fxos-dos
Revision: 1.0
For Public Release: 2018 June 20 16:00 GMT
Last Updated: 2018 June 20 16:00 GMT
CVE ID(s): CVE-2018-0298
CVSS Score v(3): 8.6 CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
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Summary
=======
A vulnerability in the web UI of Cisco FXOS and Cisco UCS Fabric Interconnect
Software could allow an unauthenticated, remote attacker to cause a buffer
overflow on an affected system.
The vulnerability is due to incorrect input validation in the web UI. An
attacker could exploit this vulnerability by sending a malicious HTTP or HTTPS
packet directed to the physical management interface of an affected system. A
successful exploit could allow the attacker to cause the process to crash and
possibly reload the device, resulting in a denial of service (DoS) condition
on the affected system.
Cisco has released software updates that address this vulnerability. There are
no workarounds that address this vulnerability.
This advisory is available at the following link:
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180620-fxos-dos
This advisory is part of the June 2018 Cisco FXOS and NX-OS Software Security
Advisory Collection, which includes 24 Cisco Security Advisories that describe
24 vulnerabilities. For a complete list of the advisories and links to them,
see Cisco Event Response: June 2018 Cisco FXOS and NX-OS Software Security
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