Home Cyber Security News Cisco Release Patches for Multiple Critical Vulnerabilities

Cisco Release Patches for Multiple Critical Vulnerabilities

by Harikrishna Mekala

Patches for 34 vulnerabilities have been released that include 5 critical, 20 high and 9 medium vulnerabilities. The 5 critical vulnerabilities are in FXOS and NX-OS software and could allow an attacker to execute remote arbitrary code that could cause a buffer overflow or in other cases may lead to a DoS attack.

The Cisco patch will fix the issues CVE-2018-0308, CVE-2018-0304, CVE-2018-0314 and CVE-2018-0312.

  • MDS 9000 Series Multilayer Switches
  • Nexus 2000 Series Fabric Extenders
  • Nexus 3000 Series Switches
  • Nexus 3500 Platform Switches
  • Nexus 5500 Platform Switches
  • Nexus 5600 Platform Switches
  • Nexus 6000 Series Switches
  • Nexus 7000 Series Switches
  • Nexus 7700 Series Switches
  • Nexus 9000 Series Switches in a standalone NX-OS mode
  • Nexus 9500 R-Series Line Cards and Fabric Modules
  • Firepower 4100 Series Next-Generation Firewalls
  • Firepower 9300 Security Appliance
  • UCS 6100 Series Fabric Interconnects
  • UCS 6200 Series Fabric Interconnects
  • UCS 6300 Series Fabric Interconnects

CLI and RBAC of the Cisco NS-OS would allow the attacker to perform a command injection attack on the vulnerable device affecting the Simple Network Management Protocol of Cisco NX-OS software.

The Internet Group Management Protocol (IGMP) vulnerability could allow attackers to execute arbitrary code or cause a DoS  in the system. The Border Gateway Protocol (BGP) is an implementation of Cisco NX-OS is allowing the unauthenticated remote attacker to cause the denial of service attack.

The vulnerability currently resides in NX-OS and could allow the attacker to create an admin account. The privilege escalation vulnerability in NX-OS which could also allow the attacker to run commands with elevated privileges. There is a list of Cisco released patches in details which can be found in the Cisco security advisories page.

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