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Cisco Updates

2068
Classification
These posts contain security alerts, including digital loopholes, electronic attacks, technical updates, and they are classified base on the level of severity.

Critical

High

Medium

Low

Warning Date

Severity Level

Warning Number

Target Sector

29 April, 2021

● High

2021-2846

All

Description:

Cisco has released security updates to address multiple vulnerabilities in the following products:

  • Cisco products if they are running a vulnerable release of Cisco ASA Software or FTD Software and have a vulnerable AnyConnect VPN or WebVPN configuration
  • 3000 Series Industrial Security Appliances (ISAs)
  • ASA 5512-X Adaptive Security Appliance
  • ASA 5515-X Adaptive Security Appliance
  • ASA 5525-X Adaptive Security Appliance
  • ASA 5545-X Adaptive Security Appliance
  • ASA 5555-X Adaptive Security Appliance
  • Firepower 1000 Series
  • Firepower 2100 Series
  • Firepower Threat Defense Virtual (FTDv)
  • Firepower 4100 Series appliances
  • Firepower 9300 Series appliances
  • 1000 Series Integrated Services Routers (ISRs)
  • 3000 Series Industrial Security Appliances (ISAs)
  • 4000 Series Integrated Services Routers (ISRs)
  • Catalyst 8000V Edge Software
  • Catalyst 8200 Series Edge Platforms
  • Catalyst 8300 Series Edge Platforms
  • Catalyst 8500L Series Edge Platforms
  • Cloud Services Router 1000V Series
  • Firepower Threat Defense (FTD) Software
  • Integrated Services Virtual Router (ISRv)
  • Open Source Snort 2
  • Cisco FTD Software releases 6.4.0 and later.
  • FMC Software :
    • 6.4.0.11 and earlier
    • Earlier than 6.6.3
    • Earlier than 6.7.0.2
  • Cisco FDM On-Box Software releases earlier than 6.5.0.5, 6.6.3, and 6.7.0.
  • ASA Software releases 9.13 through the first fixed release
  • FTD Software releases 6.5 through the first fixed release

Threats:

Attacker could exploit these vulnerabilities by doing the following:

  • Denial of service (DoS)
  • Cross-site scripting (XSS)
  • Execute arbitrary code

Best practice and Recommendations:

The CERT team encourages users to review Cisco security advisory and apply the necessary updates:

Last updated at 29 April, 2021

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