ESB-2017.2783 - [Cisco] Cisco Unified Computing System (UCS) and Cisco Firepower products: Root compromise - Existing account 2017-11-02

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             AUSCERT External Security Bulletin Redistribution

 Cisco UCS Manager, Cisco Firepower 4100 Series NGFW, and Cisco Firepower
          9300 Security Appliance Command Injection Vulnerability
                              2 November 2017


        AusCERT Security Bulletin Summary

Product:           Cisco Unified Computing System (UCS)
                   Cisco Firepower 4100 Series NGFW
                   Cisco Firepower 9300 Security Appliance
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Root Compromise -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-12243  

Original Bulletin:

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Cisco UCS Manager, Cisco Firepower 4100 Series NGFW, and Cisco Firepower 9300
Security Appliance Command Injection Vulnerability


Advisory ID:

First Published:
2017 November 1 16:00 GMT

Version 1.0:

No workarounds available

Cisco Bug IDs:

CVSS Score:
Base 6.7



A vulnerability in the Cisco Unified Computing System (UCS) Manager, Cisco 
Firepower 4100 Series Next-Generation Firewall (NGFW), and Cisco Firepower 
9300 Security Appliance could allow an authenticated, local attacker to obtain
root shell privileges on the device.

The vulnerability is due to improper validation of string input in the shell 
application. An attacker could exploit this vulnerability through the use of 
malicious commands. A successful exploit could allow the attacker to obtain 
root shell privileges on the device.

There are no workarounds that address this vulnerability.

This advisory is available at the following link:

Affected Products

Vulnerable Products

This vulnerability affects the following Cisco products:

Unified Computing System Manager
Firepower 4100 Series Next-Generation Firewall
Firepower 9300 Security Appliance

Products Confirmed Not Vulnerable

No other Cisco products are currently known to be affected by this 


There are no workarounds that address this vulnerability.

Fixed Software

For information about fixed software releases, consult the Cisco bug ID(s) at
the top of this advisory.

When considering software upgrades, customers are advised to regularly consult
the advisories for Cisco products, which are available from the Cisco Security
Advisories and Alerts page, to determine exposure and a complete upgrade 

In all cases, customers should ensure that the devices to be upgraded contain
sufficient memory and confirm that current hardware and software 
configurations will continue to be supported properly by the new release. If 
the information is not clear, customers are advised to contact the Cisco 
Technical Assistance Center (TAC) or their contracted maintenance providers.

Exploitation and Public Announcements

The Cisco Product Security Incident Response Team (PSIRT) is not aware of any
public announcements or malicious use of the vulnerability that is described 
in this advisory.


Cisco would like to thank researchers Maor Shwartz and Noam Rathaus of Beyond
Security for reporting this vulnerability.


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