Executive Summary

This Alert is flagged as TOP 25 Common Weakness Enumeration from CWE/SANS. For more information, you can read this.
Title Cisco IOS and IOS XE Software Smart Install Remote Code Execution Vulnerability
Name cisco-sa-20180328-smi2 First vendor Publication 2018-03-28
Vendor Cisco Last vendor Modification 2018-03-28
Severity (Vendor) N/A Revision N/A

Security-Database Scoring CVSS v3

Cvss vector : N/A
Overall CVSS Score NA
Base Score NA Environmental Score NA
impact SubScore NA Temporal Score NA
Exploitabality Sub Score NA
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:N/AC:L/Au:N/C:C/I:C/A:C)
Cvss Base Score 10 Attack Range Network
Cvss Impact Score 10 Attack Complexity Low
Cvss Expoit Score 10 Authentication None Required
Calculate full CVSS 2.0 Vectors scores


A vulnerability in the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition, or to execute arbitrary code on an affected device.

The vulnerability is due to improper validation of packet data. An attacker could exploit this vulnerability by sending a crafted Smart Install message to an affected device on TCP port 4786. A successful exploit could allow the attacker to cause a buffer overflow on the affected device, which could have the following impacts:

Triggering a reload of the device Allowing the attacker to execute arbitrary code on the device Causing an indefinite loop on the affected device that triggers a watchdog crash

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-20180328-smi2 ["https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180328-smi2"]

This advisory is part of the March 28, 2018, release of the Cisco IOS and IOS XE Software Security Advisory Bundled Publication, which includes 20 Cisco Security Advisories that describe 22 vulnerabilities. For a complete list of the advisories and links to them, see Cisco Event Response: March 2018 Semiannual Cisco IOS and IOS XE Software Security Advisory Bundled Publication ["https://tools.cisco.com/security/center/viewErp.x?alertId=ERP-66682"].


iQJ5BAEBAgBjBQJau708XBxDaXNjbyBQcm9kdWN0IFNlY3VyaXR5IEluY2lkZW50 IFJlc3BvbnNlIFRlYW0gKENpc2NvIFBTSVJUIGtleSAyMDE4LTIwMTkpIDxwc2ly dEBjaXNjby5jb20+AAoJEJa12PPJBfczETIP/RNwpss+1d7AlP3yJ6bxyjf6HZiR 6+YAia8J5cajQYpf/mW+iOijtjltpf0OrDQ3ZFg2Yojx1SnpZ6CKVloA74yD3YPK Q1wLBxN+XbxVoJbu4vTZk9xniTcCt+IPCdcl2u+BRN382yVp/87Derw70k964ye0 7f17BLVMUsO8DKD0paOTZO0EmR+vDBRbnnY9IhjfTma+R4pvIj2jnZsrPEgRtz/C I3PSelUIfheHBkjVfDvbifrWYAmvLx5uuMFUKxDl767T/LTd7qbM7zIwF1KG7c8h 3pbv63CXhejwwFjWFySZaWYiWbzPd3KTJaeNpyfO1XvEvtopqX0eQPkh0q5CjRf9 OxWVtQPrB5Mas8ctJdd4SAeoj+fh9PhKtaj2H5Pmyrumb4WHN/iZZfqqqZnEZuH4 pjEorI586ydgSx/UF5kw0QixY4my9bzuJk9fOGKss4wgH4hJqgq3P8XWZZDLR3Nv MB1EemITPEzFwp8fdJaLiBMiU8Ee4dXcjRBauu3/RE364hlfHAMF7T5IzTCOoZjK SnrK5zE2nJJSTb9Ri52bKx6tBIm4X0iqywk7Zfifrs4RxB6XzRV7siJvuVW0+Dvl /wuskc0VCMlICaeaJltFNOyjcbxtGW5tV77PflI8sm/H+iKN8ieeDd414mnrnrmV d71CwTOcD0p8mym6 =4Ek0 END PGP SIGNATURE

_______________________________________________ cust-security-announce mailing list cust-security-announce@cisco.com To unsubscribe, send the command "unsubscribe" in the subject of your message to cust-security-announce-leave@cisco.com

Original Source

Url : http://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco (...)

CWE : Common Weakness Enumeration

% Id Name
100 % CWE-787 Out-of-bounds Write (CWE/SANS Top 25)

CPE : Common Platform Enumeration

Os 1

Snort® IPS/IDS

Date Description
2018-06-05 Cisco Smart Install invalid init discovery message denial of service attempt
RuleID : 46468 - Revision : 1 - Type : SERVER-OTHER
2018-05-01 Cisco Smart Install init discovery message stack buffer overflow attempt
RuleID : 46096 - Revision : 2 - Type : SERVER-OTHER

Nessus® Vulnerability Scanner

Date Description
2018-03-29 Name : The remote device is missing a vendor-supplied security patch.
File : cisco-sa-20180328-smi2-ios.nasl - Type : ACT_GATHER_INFO
2018-03-29 Name : The remote device is missing a vendor-supplied security patch.
File : cisco-sa-20180328-smi2-iosxe.nasl - Type : ACT_GATHER_INFO

Alert History

If you want to see full details history, please login or register.
Date Informations
2018-04-24 21:21:39
  • Multiple Updates
2018-03-29 05:20:10
  • Multiple Updates
2018-03-28 21:18:58
  • First insertion