Date: Mon, 04 Jul 2011 23:04:00 -0500 From: HD Moore <hdm@...italoffense.net> To: Solar Designer <solar@...nwall.com> CC: oss-security@...ts.openwall.com, scarybeasts@...il.com Subject: Re: vsftpd download backdoored On 7/4/2011 10:58 PM, Solar Designer wrote: > What mirror? As far as I'm aware, from the announcement by Chris, only > the official distribution site for vsftpd was compromised. [ snip ] > Maybe. Do you have a copy of the backdoored tarball? I don't, and no > one on forums where I saw this discussed appears to have it (which > confirms that it existed for a very short period of time only). This copy is backdoored and has mtime Feb-15-2011. Chris didn't reply when I asked him for a copy from his master (old/vsftpd-2.3.4.tar.gz). http://download.polytechnic.edu.na/pub2/vsftpd/vsftpd-2.3.4.tar.gz > Are you trying to say that Debian got the backdoored copy? This is news > to me. No, I am saying that for this to become as widespread as the mtime in the mirror above indicates, it would be incredible for distros like Debian to not notice it, as they verify the hash of the tarball. This indicates that the mtime in the mirror above was forged (since the hash is indeed wrong), but the real question is how this mirror obtained the copy. Was the mirror compromised? Was a rsync job used against the real server, in which case the mtime was preserved? I couldn't find any public copies with the backdoored checksum, but one of the metasploit contributors pointed me to the link above. I would like to believe the exposure was limited to 1-3 days, but the mirror above casts doubt on this. -HD
Powered by blists - more mailing lists
Please check out the Open Source Software Security Wiki, which is counterpart to this mailing list.
Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.