high
7.8
CWE
78 20
Advisory Published
Updated

CVE-2021-34756: Cisco Firepower Threat Defense Software Command Injection Vulnerabilities

First published: Wed Oct 27 2021(Updated: )

Multiple vulnerabilities in the CLI of Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, local attacker to execute arbitrary commands with root privileges. For more information about these vulnerabilities, see the Details section of this advisory.

Credit: ykramarz@cisco.com

Affected SoftwareAffected VersionHow to fix
Cisco Firepower Management Center virtual appliance firmware=6.1.0
Cisco Firepower Management Center virtual appliance firmware=6.2.0
Cisco Firepower Management Center virtual appliance firmware=6.2.3
Cisco Firepower Management Center virtual appliance firmware=6.3.0
Cisco Firepower Management Center virtual appliance firmware=6.4.0
Cisco Firepower Management Center virtual appliance firmware=6.4.0.11
Cisco Firepower Management Center virtual appliance firmware=6.5.0
Cisco Firepower Management Center virtual appliance firmware=6.6.0
Cisco Firepower Management Center virtual appliance firmware=6.6.1
Cisco Firepower Management Center virtual appliance firmware=6.7.0
Cisco Firepower Management Center virtual appliance firmware=7.0.0
Cisco Firepower Management Center virtual appliance firmware=7.1.0
Cisco Firepower Threat Defense (FTD)>=6.4.0<6.4.0.13
Cisco Firepower Threat Defense (FTD)>=6.6.0<6.6.5
Cisco Firepower Threat Defense (FTD)>=6.7.0<6.7.0.3
Cisco Firepower Threat Defense (FTD)>=7.0.0<7.0.1
Cisco Sourcefire Defense Center=6.1.0
Cisco Sourcefire Defense Center=6.2.0
Cisco Sourcefire Defense Center=6.2.3
Cisco Sourcefire Defense Center=6.3.0
Cisco Sourcefire Defense Center=6.4.0
Cisco Sourcefire Defense Center=6.4.0.11
Cisco Sourcefire Defense Center=6.5.0
Cisco Sourcefire Defense Center=6.6.0
Cisco Sourcefire Defense Center=6.6.1
Cisco Sourcefire Defense Center=6.7.0
Cisco Sourcefire Defense Center=7.0.0
Cisco Sourcefire Defense Center=7.1.0

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Reference Links

Frequently Asked Questions

  • What is the severity of CVE-2021-34756?

    The severity of CVE-2021-34756 is high.

  • How can an attacker exploit CVE-2021-34756?

    An authenticated, local attacker can exploit CVE-2021-34756 to execute arbitrary commands with root privileges.

  • Which versions of Cisco Firepower Management Center Virtual Appliance are affected by CVE-2021-34756?

    Versions 6.1.0, 6.2.0, 6.2.3, 6.3.0, 6.4.0, 6.4.0.11, 6.5.0, 6.6.0, 6.6.1, 6.7.0, 7.0.0, and 7.1.0 of Cisco Firepower Management Center Virtual Appliance are affected by CVE-2021-34756.

  • Which versions of Cisco Firepower Threat Defense are affected by CVE-2021-34756?

    Versions 6.4.0 to 6.4.0.13, 6.6.0 to 6.6.5, 6.7.0 to 6.7.0.3, and 7.0.0 to 7.0.1 of Cisco Firepower Threat Defense are affected by CVE-2021-34756.

  • Where can I find more information about CVE-2021-34756?

    You can find more information about CVE-2021-34756 in the Cisco Security Advisory at this link: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-cmdinject-FmzsLN8

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