CVE-2021-34730— Cisco Small Business 缓冲区错误漏洞
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一、 漏洞 CVE-2021-34730 基础信息
漏洞信息
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Vulnerability Title
Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Remote Command Execution and Denial of Service Vulnerability
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
A vulnerability in the Universal Plug-and-Play (UPnP) service of Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers could allow an unauthenticated, remote attacker to execute arbitrary code or cause an affected device to restart unexpectedly, resulting in a denial of service (DoS) condition. This vulnerability is due to improper validation of incoming UPnP traffic. An attacker could exploit this vulnerability by sending a crafted UPnP request to an affected device. A successful exploit could allow the attacker to execute arbitrary code as the root user on the underlying operating system or cause the device to reload, resulting in a DoS condition. Cisco has not released software updates that address this vulnerability.
来源: 美国国家漏洞数据库 NVD
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
栈缓冲区溢出
来源: 美国国家漏洞数据库 NVD
Vulnerability Title
Cisco Small Business 缓冲区错误漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Cisco Small Business是美国思科（Cisco）公司的一个交换机。 Cisco Small Business RV110W、RV130、RV130W 和 RV215W 路由器存在缓冲区错误漏洞，该漏洞源于对传入 UPnP 流量的验证不当造成的。该漏洞可能允许未经身份验证的远程攻击者执行任意代码或导致受影响的设备意外重启，从而导致拒绝服务 (DoS) 。
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 Small Business RV Series Router Firmware | n/a | - |
二、漏洞 CVE-2021-34730 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|---|---|---|
| 1 | Cisco RV110w UPnP stack overflow | https://github.com/badmonkey7/CVE-2021-34730 | POC详情 |
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- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cisco-sb-rv-overflow-htpymMB5vendor-advisoryx_refsource_CISCO
- https://nvd.nist.gov/vuln/detail/CVE-2021-34730
同批安全公告 · Cisco · 2021-08-18 · 共 7 条
| CVE-2021-34745 | 7.8 HIGH | AppDynamics.NET Agent for Windows 安全漏洞 |
| CVE-2021-34716 | 6.7 MEDIUM | Cisco Expressway Series和Cisco TelePresence Video Communication Server 安全漏洞 |
| CVE-2021-34734 | 6.5 MEDIUM | Cisco Video Surveillance 7000 Series IP Cameras 资源管理错误漏洞 |
| CVE-2021-34749 | 5.8 MEDIUM | Cisco Firepower Threat Defense 信息泄露漏洞 |
| CVE-2021-1561 | 5.4 MEDIUM | Cisco Secure Email 授权问题漏洞 |
| CVE-2021-34715 | 4.7 MEDIUM | Cisco Expressway Series和Cisco TelePresence Video Communication Server 数据伪造问题漏洞 |
IV. Related Vulnerabilities
Same product: Cisco Small Business RV Series Router Firmware
V. Comments for CVE-2021-34730
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