CVE-2021-34762— Cisco Firepower Management Center Software Authenticated Directory Traversal Vulnerability
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I. Basic Information for CVE-2021-34762
Vulnerability Information
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Vulnerability Title
Cisco Firepower Management Center Software Authenticated Directory Traversal Vulnerability
Source: NVD (National Vulnerability Database)
Vulnerability Description
A vulnerability in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to perform a directory traversal attack on an affected device. The attacker would require valid device credentials. The vulnerability is due to insufficient input validation of the HTTPS URL by the web-based management interface. An attacker could exploit this vulnerability by sending a crafted HTTPS request that contains directory traversal character sequences to an affected device. A successful exploit could allow the attacker to read or write arbitrary files on the device.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
路径遍历：’dir/../filename’
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco Firepower Management Center 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Cisco Firepower Management Center（FMC）是美国思科（Cisco）公司的新一代防火墙管理中心软件。 Cisco Firepower Management Center Software 存在安全漏洞，该漏洞源于基于 Web 的管理界面对 HTTPS URL 的输入验证不足。攻击者可以通过向受影响的设备发送包含目录遍历字符序列的精心设计的 HTTPS 请求来利用此漏洞。成功的利用可能允许攻击者在设备上读取或写入任意文件。
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 Management Center | n/a | - |
II. Public POCs for CVE-2021-34762
| # | POC Description | Source Link | Shenlong Link |
|---|
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-dir-traversal-95UyW5tkvendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2021-34762
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-2021-40114 | 6.8 MEDIUM | Multiple Cisco Products Snort Memory Leak Denial of Service Vulnerability |
| CVE-2021-34755 | 6.7 MEDIUM | Cisco Firepower Threat Defense Software Command Injection Vulnerabilities |
| 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
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Cisco Secure Firewall Management Center Software Authorizati - CVE-2025-20265
Cisco Secure Firewall Management Center Software Radius Remo
Same vendor: Cisco
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