Uftpd
CVE-2020-20276
CRITICAL
Severity by source
AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
1DescriptionNVD
An unauthenticated stack-based buffer overflow vulnerability in common.c's handle_PORT in uftpd FTP server versions 2.10 and earlier can be abused to cause a crash and could potentially lead to remote code execution.
AnalysisAI
An unauthenticated stack-based buffer overflow vulnerability in common.c's handle_PORT in uftpd FTP server versions 2.10 and earlier can be abused to cause a crash and could potentially lead to. Rated critical severity (CVSS 9.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Out-of-bounds Write vulnerability could allow attackers to write data beyond allocated buffer boundaries leading to code execution or crashes.
Technical ContextAI
This vulnerability is classified as Out-of-bounds Write (CWE-787), which allows attackers to write data beyond allocated buffer boundaries leading to code execution or crashes. An unauthenticated stack-based buffer overflow vulnerability in common.c's handle_PORT in uftpd FTP server versions 2.10 and earlier can be abused to cause a crash and could potentially lead to remote code execution. Affected products include: Troglobit Uftpd.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Validate write boundaries, use memory-safe languages, enable compiler protections (ASLR, stack canaries).
There are multiple unauthenticated directory traversal vulnerabilities in different FTP commands in uftpd FTP server ver
In uftpd before 2.12, handle_CWD in ftpcmd.c mishandled the path provided by the user, causing a NULL pointer dereferenc
In uftpd before 2.11, it is possible for an unauthenticated user to perform a directory traversal attack using multiple
In uftpd before 2.11, there is a buffer overflow vulnerability in handle_PORT in ftpcmd.c that is caused by a buffer tha
Same weakness CWE-787 – Out-of-bounds Write
View allSame technique Buffer Overflow
View allShare
External POC / Exploit Code
Leaving vuln.today