ESB-2017.3042 - [Cisco] Cisco Application Policy Infrastructure Controllers: Root compromise - Existing account 2017-11-30

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             AUSCERT External Security Bulletin Redistribution

                               ESB-2017.3042
                          cisco-sa-20171129-apic
                             30 November 2017

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        AusCERT Security Bulletin Summary
        ---------------------------------

Product:           Cisco Application Policy Infrastructure Controllers
Publisher:         Cisco Systems
Operating System:  Cisco
Impact/Access:     Root Compromise -- Existing Account
Resolution:        Patch/Upgrade
CVE Names:         CVE-2017-12352  

Original Bulletin: 
   https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20171129-apic

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Medium
 Advisory ID:
 
cisco-sa-20171129-apic
First Published:
2017 November 29 16:00  GMT
 
 Version 1.0:
  
Final
 
Workarounds:
 
No workarounds available

Cisco Bug IDs:
CSCvf57274
CVE-2017-12352
CWE-77
CVSS Score:
 Base 6.7Click Icon to Copy Verbose Score
CVSS:3.0/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:X/RL:X/RC:X
CVE-2017-12352
CWE-77
 
 Summary
 
A vulnerability in certain system script files that are installed at
boot time on Cisco Application Policy Infrastructure Controllers could
allow an authenticated, local attacker to gain elevated privileges and
execute arbitrary commands with root privileges on an affected host
operating system.
The vulnerability is due to insufficient validation of user-controlled
input that is supplied to certain script files of an affected system.
An attacker could exploit this vulnerability by submitting crafted
input to a script file on an affected system. A successful exploit
could allow the attacker to gain elevated privileges and execute
arbitrary commands with root privileges on the affected system. To
exploit this vulnerability, the attacker would need to authenticate to
the affected system by using valid administrator credentials.
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-20171129-apic
 
Affected Products
  
 Vulnerable Products
  
This vulnerability affects Cisco Application Policy Infrastructure
Controllers. For information about affected software releases, consult
the Cisco bug ID(s) at the top of this advisory.
 Products Confirmed Not Vulnerable
  
No other Cisco products are currently known to be affected by this
vulnerability.
 
Workarounds
  
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 solution.
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.

 Source
 
 Cisco would like to thank security researcher Tomas Lazauninkas of the
Swedbank Security Verification Team for reporting this vulnerability.
 
Cisco Security Vulnerability Policy
  
To learn about Cisco security vulnerability disclosure policies and
publications, see the Security Vulnerability Policy. This document
also contains instructions for obtaining fixed software and receiving
security vulnerability information from Cisco.
 
URL
  
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/
cisco-sa-20171129-apic
 Revision History
  
Version
Description
Section
Status
Date
1.0
Initial public release.

Final
2017-November-29
 
Legal Disclaimer
 
THIS DOCUMENT IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY
KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE. YOUR USE OF THE
INFORMATION ON THE DOCUMENT OR MATERIALS LINKED FROM THE DOCUMENT IS
AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS
DOCUMENT AT ANY TIME.
A standalone copy or paraphrase of the text of this document that
omits the distribution URL is an uncontrolled copy and may lack
important information or contain factual errors. The information in
this document is intended for end users of Cisco products.

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