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Advisories

ProFTPD before 1.3.9e and 1.3.10rc5 mod_sftp Copy-File Authorization Bypass

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Severity
medium
Date
Affecting

  • ProFTPD >= 0, < 1.3.9e

  • ProFTPD >= 1.3.10rc1, < 1.3.10rc5

CWE
  • CWE-863 Incorrect Authorization
CVSS
5.3
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
Credit
Abraxas Labs, MiniMax Security, TJ Saunders
Description
ProFTPD before 1.3.9e and 1.3.10rc5 contains an authorization bypass in the mod_sftp copy-file extension handler that skips Limit WRITE checks for new destination files. Authenticated SFTP users can copy any readable file to a new path in write-denied directories, creating files where uploads are forbidden.

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