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what version of vsftpd contained the smiley face backdoor?

Sagot :

arppanakantharupan

Answer:

Chris Evans, author of vsftpd announced that the master site for vsftpd was compromised and that the latest version of vsftpd (vsftpd-2.3.4.tar.gz) was backdoored. The backdoor payload is interesting. In response to a smiley face in the FTP username, a TCP callback shell is attempted. There is no obfuscation.

Explanation:

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