CVE-2021-34730— Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Remote Command Execution and Denial of Service Vulnerability
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I. Basic Information for CVE-2021-34730
Vulnerability Information
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Vulnerability Title
Cisco Small Business RV110W, RV130, RV130W, and RV215W Routers Remote Command Execution and Denial of Service Vulnerability
Source: NVD (National Vulnerability Database)
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
栈缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
Cisco Small Business 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
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) 。
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 Small Business RV Series Router Firmware | n/a | - |
II. Public POCs for CVE-2021-34730
| # | POC Description | Source Link | Shenlong Link |
|---|---|---|---|
| 1 | Cisco RV110w UPnP stack overflow | https://github.com/badmonkey7/CVE-2021-34730 | POC Details |
AI-Generated POCPremium
No public POC found.
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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
Same Patch Batch · Cisco · 2021-08-18 · 7 CVEs total
| CVE-2021-34745 | 7.8 HIGH | AppDynamics .NET Agent Privilege Escalation Vulnerability |
| CVE-2021-34716 | 6.7 MEDIUM | Cisco Expressway Series and TelePresence Video Communication Server Remote Code Execution |
| CVE-2021-34734 | 6.5 MEDIUM | Cisco Video Surveillance 7000 Series IP Cameras Link Layer Discovery Protocol Double-Free |
| CVE-2021-34749 | 5.8 MEDIUM | Multiple Cisco Products Server Name Identification Data Exfiltration Vulnerability |
| CVE-2021-1561 | 5.4 MEDIUM | Cisco Secure Email and Web Manager Spam Quarantine Unauthorized Access Vulnerability |
| CVE-2021-34715 | 4.7 MEDIUM | Cisco Expressway Series and TelePresence Video Communication Server Image Verification Vu |
IV. Related Vulnerabilities
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Cisco Small Business RV042, RV042G, RV320, and RV325 Denial - CVE-2024-20521
Cisco Small Business RV042, RV042G, RV320, and RV325 Remote
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V. Comments for CVE-2021-34730
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