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CVE-2021-31800

Quick assessment

Affected
n/a n/a
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

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。

AI Predicted 7.5 Difficulty: Easy EPSS 19.41% · P97
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I. Basic Information for CVE-2021-31800

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
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: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
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

Vendor Product Affected Versions CPE Subscribe
- n/a n/a -

II. Public POCs for CVE-2021-31800

# POC Description Source Link Shenlong Link
1 A 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-write POC Details
2 CVE-2021-31800 POC https://github.com/Louzogh/CVE-2021-31800 POC Details
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III. Intelligence Information for CVE-2021-31800

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Patches & Fixes for CVE-2021-31800 (1)

Mailing List Discussions for CVE-2021-31800 (3)

Other References for CVE-2021-31800 (4)

Same Patch Batch · n/a · 2021-05-05 · 25 CVEs total

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CVE-2020-19114 PHPGurukul Online Book Store SQL注入漏洞
CVE-2021-32055 Mutt 缓冲区错误漏洞
CVE-2021-32062 Mapserver 路径遍历漏洞
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CVE-2020-19110 PHPGurukul Online Book Store SQL注入漏洞
CVE-2020-19111 PHPGurukul Online Book Store 授权问题漏洞

Showing top 20 of 25 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

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Same vendor: n/a

V. Comments for CVE-2021-31800

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