CVE-2021-47854— DD-WRT 45723 - UPNP Buffer Overflow
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I. Basic Information for CVE-2021-47854
Vulnerability Information
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Vulnerability Title
DD-WRT 45723 - UPNP Buffer Overflow
Source: NVD (National Vulnerability Database)
Vulnerability Description
DD-WRT version 45723 contains a buffer overflow vulnerability in the UPNP network discovery service that allows remote attackers to potentially execute arbitrary code. Attackers can send crafted M-SEARCH packets with oversized UUID payloads to trigger buffer overflow conditions on the target device.
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
未进行输入大小检查的缓冲区拷贝(传统缓冲区溢出)
Source: NVD (National Vulnerability Database)
Vulnerability Title
DD-WRT 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
DD-WRT是DD-WRT开源的一种基于 Linux 的替代开源固件。适用于各种 WLAN 路由器和嵌入式系统。 DD-WRT 45723版本存在安全漏洞，该漏洞源于UPNP网络发现服务存在缓冲区溢出，可能导致执行任意代码。
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)
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Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| embeDD GmbH | DD-WRT | 45723 | - |
II. Public POCs for CVE-2021-47854
| # | POC Description | Source Link | Shenlong Link |
|---|
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No public POC found.
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- https://ssd-disclosure.com/ssd-advisory-dd-wrt-upnp-buffer-overflow/technical-description
- https://nvd.nist.gov/vuln/detail/CVE-2021-47854
IV. Related Vulnerabilities
Same product: DD-WRT
Same weakness: CWE-120
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V. Comments for CVE-2021-47854
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