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F5 Networks Alert

1811
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

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● High

Warning Date

Severity Level

Warning Number

Target Sector

26 April, 2022

● High

2022-4715

All

Description:

F5 Networks has released security updates to address several vulnerabilities in the following products:

  • Traffix SDC
    • 5.2.0
  • BIG-IP (LTM, AAM, Advanced WAF, AFM, Analytics, APM, ASM, DDHD, DNS, FPS, GTM, Link Controller, PEM, SSLO)
    • 16.0.0 - 16.1.2
    • 15.0.0 - 15.1.5
    • 14.1.0 - 14.1.4
Threats:

An attacker could exploit these vulnerabilities by doing the following:

  • Escalating privilege
  • Execute arbitrary code
Best practice and Recommendations:

The CERT team encourages users to review F5 Networks security advisory and apply the necessary updates:

And to mitigate "Traffix SDC" vulnerability, you can disable user namespaces for non-containerized deployments by setting user.max_user_namespaces to 0. To do so, run the following commands:

  • echo "user.max_user_namespaces=0" > /etc/sysctl.d/userns.conf
    sysctl -p /etc/sysctl.d/userns.conf
Last updated at 26 April, 2022

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