Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2020-5221— Directory Traversal (Chroot Escape) vulnerability in uftpd

Quick assessment

Affected
troglobit uftpd
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

uftpd是一款基于Linux平台的FTP/TFTP文件传输服务器。 uftpd 2.11之前版本中存在路径遍历漏洞。攻击者可借助多个不同的FTP命令利用该漏洞对文件系统上的任意位置进行读写操作。

CVSS 6.5 · Medium EPSS 1.16% · P64
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2020-5221

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Directory Traversal (Chroot Escape) vulnerability in uftpd
Source: CVE Program / CVE List V5
Vulnerability Description
In uftpd before 2.11, it is possible for an unauthenticated user to perform a directory traversal attack using multiple different FTP commands and read and write to arbitrary locations on the filesystem due to the lack of a well-written chroot jail in compose_abspath(). This has been fixed in version 2.11
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
uftpd 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
uftpd是一款基于Linux平台的FTP/TFTP文件传输服务器。 uftpd 2.11之前版本中存在路径遍历漏洞。攻击者可借助多个不同的FTP命令利用该漏洞对文件系统上的任意位置进行读写操作。
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
troglobit uftpd < 2.11 -

II. Public POCs for CVE-2020-5221

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2020-5221

请登录查看更多情报信息。

Patches & Fixes for CVE-2020-5221 (1)

Vendor Advisories for CVE-2020-5221 (1)

IV. Related Vulnerabilities

Same product: uftpd
Same vendor: troglobit
Same weakness: CWE-22

V. Comments for CVE-2020-5221

No comments yet

Leave a comment