Pierluigi Paganini
April 19, 2018
According to Rockwell Automation, eight flaws recently discovered recently in Cisco IOS are affecting its products which are used in many sectors, including the critical manufacturing and energy.
The list of flaws includes improper input validation, resource management errors, 7PK errors, improper restriction of operations within the bounds of a memory buffer, use of externally-controlled format string.
“Successful exploitation of these vulnerabilities could result in loss of availability, confidentiality, and/or integrity caused by memory exhaustion, module restart, information corruption, and/or information exposure.” reads the security advisory published by the US ICS-CERT.
Affected models are Stratix 5400, 5410, 5700, 8000 and ArmorStratix 5700 switches running firmware version 15.2(6)E0a and earlier.
The most critical vulnerability is the Cisco CVE-2018-0171 Smart Install, a flaw that affects the Smart Install feature of Cisco IOS Software and Cisco IOS XE Software that could be exploited by an unauthenticated, remote attacker to cause a reload of a vulnerable device or to execute arbitrary code on an affected device.
A couple of weeks ago, the hacking crew “JHT” launched a hacking campaign exploiting Cisco CVE-2018-0171 flaw against network infrastructure in Russia and Iran.
Rockwell has released firmware version 15.2(6)E1 to address the vulnerabilities in its switches.
Rockwell Automation provided mitigations in addition to upgrading the software version:
Cisco has released new Snort Rules at https://www.cisco.com/web/software/286271056/117258/sf-rules-2018-03-29-new.html(link is external) to help address the following vulnerabilities:
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(Security Affairs – Rockwell Automation, Cisco IOS law)
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