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I. Basic Information for CVE-2021-20133
Vulnerability Information

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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Quagga Services on D-Link DIR-2640 less than or equal to version 1.11B02 are affected by an absolute path traversal vulnerability that allows a remote, authenticated attacker to set the "message of the day" banner to any file on the system, allowing them to read all or some of the contents of those files. Such sensitive information as hashed credentials, hardcoded plaintext passwords for other services, configuration files, and private keys can be disclosed in this fashion. Improper handling of filenames that identify virtual resources, such as "/dev/urandom" allows an attacker to effect a denial of service attack against the command line interfaces of the Quagga services (zebra and ripd).
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Title
D-Link DIR-2640 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
D-Link DIR-2640是中国台湾友讯(D-Link)公司的一款高功率 Wi-Fi 路由器。 D-Link DIR-2640 1.11B02 及之前版本的 Quagga 服务存在路径遍历漏洞,该漏洞允许远程、经过身份验证的攻击者将每日消息横幅设置为系统上的任何文件,从而允许他们阅读这些文件的全部或部分内容。诸如散列凭证、其他服务的硬编码明文密码、配置文件和私钥等敏感信息可以通过这种方式公开。
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
VendorProductAffected VersionsCPESubscribe
-Quagga Services on D-Link DIR-2640 Routers <= 1.11B02 -
II. Public POCs for CVE-2021-20133
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III. Intelligence Information for CVE-2021-20133
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IV. Related Vulnerabilities
V. Comments for CVE-2021-20133

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