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I. Basic Information for CVE-2021-31800
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Description
Multiple path traversal vulnerabilities exist in smbserver.py in Impacket through 0.9.22. An attacker that connects to a running smbserver instance can list and write to arbitrary files via ../ directory traversal. This could potentially be abused to achieve arbitrary code execution by replacing /etc/shadow or an SSH authorized key.
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
impacket 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
impacket是一个应用软件。用于处理网络协议的Python类的集合。 Impacket 0.9.22之前版本存在安全漏洞，该漏洞源于smbserver.py存在多个路径遍历漏洞。攻击者可利用该漏洞可以通过..列出并写入任意文件。目录遍历。通过替换etc shadow或SSH授权密钥来实现任意代码执行。
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
-n/a n/a -
II. Public POCs for CVE-2021-31800
#POC DescriptionSource LinkShenlong Link
1A path traversal in smbserver.py allows an attacker to read/write arbitrary files on the server.https://github.com/p0dalirius/CVE-2021-31800-Impacket-SMB-Server-Arbitrary-file-read-writePOC Details
2CVE-2021-31800 POChttps://github.com/Louzogh/CVE-2021-31800POC Details
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III. Intelligence Information for CVE-2021-31800
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IV. Related Vulnerabilities
Same product: n/a
Same vendor: n/a
V. Comments for CVE-2021-31800

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