Ruby before 2.4.3 allows Net::FTP command injection.

Summary

Ruby before 2.4.3 allows Net::FTP command injection. Net::FTP#get, getbinaryfile, gettextfile, put, putbinaryfile, and puttextfile use Kernel#open to open a local file. If the localfile argument starts with the "|" pipe character, the command following the pipe character is executed. The default value of localfile is File.basename(remotefile), so malicious FTP servers could cause arbitrary command execution.

Timeline

1. Dec 2, 2017Public exploit on Exploit-DB

   EDB-43381

2. Dec 15, 2017, 9:00 AM UTCCVE published
3. Aug 5, 2024, 8:51 PM UTCRecord last updated
4. Oct 28, 2026EPSS reached 10%

   FIRST estimates at least a 10% chance of exploitation in the next 30 days

Affected versions

• n/a n/a

  Version range not reported

References 15