CVE-2019-1836— Cisco Nexus 9000 Series Fabric Switches 后置链接漏洞
一分钟漏洞结论
影响对象
Cisco Cisco NX-OS Software for Nexus 9000 Series Fabric Switches ACI Mode
利用判断
尚无明确在野利用证据，仍需结合暴露面评估
建议动作
优先检查厂商安全公告和参考链接中的修复版本；无法立即升级时，限制受影响服务暴露并加强监测。
Cisco Nexus 9000 Series Fabric Switches是美国思科（Cisco）公司的一款9000系列光纤交换机。 Cisco Nexus 9000 Series Fabric Switches（处于Application Centric Infrastructure (ACI)模式）中的system shell存在后置链接漏洞。该漏洞源于网络系统或产品未正确过滤表示非预期资源的链接或者快捷方式的文件名。攻击者可利用该漏洞访问非法的文件路径。
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一、 漏洞 CVE-2019-1836 基础信息
漏洞信息
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Vulnerability Title
Cisco Nexus 9000 Series Fabric Switches Application Centric Infrastructure Mode Symbolic Link Path Traversal Vulnerability
来源: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in the system shell for Cisco Nexus 9000 Series Fabric Switches in Application Centric Infrastructure (ACI) mode could allow an authenticated, local attacker to use symbolic links to overwrite system files. These system files may be sensitive and should not be overwritable by non-root users. The attacker would need valid device credentials. The vulnerability is due to incorrect symbolic link verification of directory paths when they are used in the system shell. An attacker could exploit this vulnerability by authenticating to the device and providing crafted user input to specific symbolic link CLI commands. Successful exploitation could allow the attacker to overwrite system files that should be restricted. This vulnerability has been fixed in software version 14.1(1i).
来源: CVE Program / CVE List V5
CVSS Information
N/A
来源: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
来源: CVE Program / CVE List V5
Vulnerability Title
Cisco Nexus 9000 Series Fabric Switches 后置链接漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Cisco Nexus 9000 Series Fabric Switches是美国思科（Cisco）公司的一款9000系列光纤交换机。 Cisco Nexus 9000 Series Fabric Switches（处于Application Centric Infrastructure (ACI)模式）中的system shell存在后置链接漏洞。该漏洞源于网络系统或产品未正确过滤表示非预期资源的链接或者快捷方式的文件名。攻击者可利用该漏洞访问非法的文件路径。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Cisco | Cisco NX-OS Software for Nexus 9000 Series Fabric Switches ACI Mode | unspecified ~ 14.1(1i) | - |
|
二、漏洞 CVE-2019-1836 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
AI 生成 POC
高级
未找到公开 POC。
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CVE-2019-1836 厂商安全公告 (2)
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https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190501-fabric-traversal vendor-advisory x_refsource_CISCO
同批安全公告 · Cisco · 2019-05-03 · 共 41 条
| CVE-2019-1692 | Cisco Application Policy Infrastructure Controller 信息泄露漏洞 | |
| CVE-2019-1703 | Cisco Firepower 2100 Series Firepower Threat Defense 资源管理错误漏洞 | |
| CVE-2019-1704 | Cisco Firepower Threat Defense 资源管理错误漏洞 | |
| CVE-2019-1699 | Cisco Firepower Threat Defense 操作系统命令注入漏洞 | |
| CVE-2019-1697 | Cisco Adaptive Security Appliance Software和Firepower Threat Defense Software 输入验证错误漏洞 | |
| CVE-2019-1694 | Cisco Adaptive Security Appliance Software和Firepower Threat Defense Software 输入验证错误漏洞 | |
| CVE-2019-1695 | Cisco Firepower Threat Defense 安全漏洞 | |
| CVE-2019-1696 | Cisco Firepower Threat Defense 资源管理错误漏洞 | |
| CVE-2019-1693 | Cisco Adaptive Security Appliance Software和Firepower Threat Defense Software 资源管理错误漏洞 | |
| CVE-2019-1687 | Cisco Adaptive Security Appliance Software和Firepower Threat Defense Software 输入验证错误漏洞 | |
| CVE-2019-1701 | Cisco Adaptive Security Appliance Software和Firepower Threat Defense Software 跨站脚本漏洞 | |
| CVE-2019-1635 | Cisco IP Phone 7800 Series和8800 Series Session Initiation Protocol Software 资源管理错误漏洞 | |
| CVE-2019-1682 | Cisco Application Policy Infrastructure Controller 输入验证错误漏洞 | |
| CVE-2019-1589 | Cisco Nexus 9000 Series Fabric Switches 信息泄露漏洞 | |
| CVE-2019-1590 | Cisco Nexus 9000 Series Switch 信任管理问题漏洞 | |
| CVE-2019-1592 | Cisco Nexus 9000 Series Fabric Switches 输入验证错误漏洞 | |
| CVE-2018-15462 | Cisco Firepower Threat Defense 资源管理错误漏洞 | |
| CVE-2019-1586 | Cisco Application Policy Infrastructure Controller 加密问题漏洞 | |
| CVE-2019-1587 | Cisco Nexus 9000 Series Fabric Switches 输入验证错误漏洞 | |
| CVE-2018-15388 | Cisco Adaptive Security Appliance Software和Firepower Threat Defense Software 资源管理错误漏洞 |
显示前 20 条，共 41 条。 查看全部 → →
IV. Related Vulnerabilities
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CVE-2019-1803
Cisco Nexus 9000 Series Application Centric Infrastructure M -
CVE-2019-1589
Cisco Nexus 9000 Series Fabric Switches 信息泄露漏洞 -
CVE-2019-1590
Cisco Nexus 9000 Series Switch 信任管理问题漏洞 -
CVE-2019-1588
Cisco Nexus 9000 Series Fabric Switches 输入验证错误漏洞 -
CVE-2019-1591
Cisco Nexus 9000 Series ACI Mode Switch Software 命令注入漏洞
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