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CVE-2021-34755— Cisco Firepower Threat Defense Software Command Injection Vulnerabilities

Quick assessment

Affected
Cisco Cisco Firepower Threat Defense Software
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Cisco Firepower Threat Defense（FTD）是美国思科（Cisco）公司的一套提供下一代防火墙服务的统一软件。 Cisco Firepower Threat Defense Software 存在操作系统命令注入漏洞，该漏洞源于对用户提供的命令参数的验证不足。攻击者可以通过向受影响的命令提交精心设计的输入来利用这些漏洞。成功的利用可能允许攻击者在底层操作系统上以root权限执行命令。

CVSS 6.7 · Medium EPSS 0.27% · P18

Possible ATT&CK Techniques 2 AI

T1548.001 · Setuid and Setgid T1068.001
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I. Basic Information for CVE-2021-34755

Vulnerability Information
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Vulnerability Title
Cisco Firepower Threat Defense Software Command Injection Vulnerabilities
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Cisco Firepower Threat Defense 操作系统命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Firepower Threat Defense（FTD）是美国思科（Cisco）公司的一套提供下一代防火墙服务的统一软件。 Cisco Firepower Threat Defense Software 存在操作系统命令注入漏洞，该漏洞源于对用户提供的命令参数的验证不足。攻击者可以通过向受影响的命令提交精心设计的输入来利用这些漏洞。成功的利用可能允许攻击者在底层操作系统上以root权限执行命令。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Cisco Cisco Firepower Threat Defense Software n/a -

II. Public POCs for CVE-2021-34755

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III. Intelligence Information for CVE-2021-34755

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Vendor Advisories for CVE-2021-34755 (1)

Same Patch Batch · Cisco · 2021-10-27 · 20 CVEs total

CVE-2021-40117 8.6 HIGH Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SSL/TLS D
CVE-2021-40116 8.6 HIGH Multiple Cisco Products Snort Rule Denial of Service Vulnerability
CVE-2021-40118 8.6 HIGH Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Servi
CVE-2021-34793 8.6 HIGH Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Transpare
CVE-2021-34792 8.6 HIGH Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Resource
CVE-2021-34783 8.6 HIGH Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Software-
CVE-2021-34781 8.6 HIGH Cisco Firepower Threat Defense Software SSH Connections Denial of Service Vulnerability
CVE-2021-34762 8.1 HIGH Cisco Firepower Management Center Software Authenticated Directory Traversal Vulnerability
CVE-2021-40114 6.8 MEDIUM Multiple Cisco Products Snort Memory Leak Denial of Service Vulnerability
CVE-2021-34756 6.7 MEDIUM Cisco Firepower Threat Defense Software Command Injection Vulnerabilities
CVE-2021-34754 5.8 MEDIUM Cisco Firepower Threat Defense Software Ethernet Industrial Protocol Policy Bypass Vulnera
CVE-2021-40125 5.3 MEDIUM Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software IKEv2 Sit
CVE-2021-34787 5.3 MEDIUM Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Identity-
CVE-2021-34794 5.3 MEDIUM Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software SNMP Acce
CVE-2021-34764 4.8 MEDIUM Cisco Firepower Management Center Software Cross-Site Scripting and Open Redirect Vulnerab
CVE-2021-34763 4.8 MEDIUM Cisco Firepower Management Center Software Cross-Site Scripting and Open Redirect Vulnerab
CVE-2021-34790 4.7 MEDIUM Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Applicati
CVE-2021-34791 4.7 MEDIUM Cisco Adaptive Security Appliance Software and Firepower Threat Defense Software Applicati
CVE-2021-34761 4.4 MEDIUM Cisco Firepower Threat Defense Software CLI Arbitrary File Write Vulnerability

IV. Related Vulnerabilities

Same product: Cisco Firepower Threat Defense Software
Same vendor: Cisco
Same weakness: CWE-20

V. Comments for CVE-2021-34755

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