Vulnerability CVE-2011-1575
Published: 2011-05-23   Modified: 2012-02-13

Description:
The STARTTLS implementation in ftp_parser.c in Pure-FTPd before 1.0.30 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted FTP sessions by sending a cleartext command that is processed after TLS is in place, related to a "plaintext command injection" attack, a similar issue to CVE-2011-0411.

Type:

CWE-399

 (Resource Management Errors)

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:N)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.8/10
4.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
None
Affected software
Pureftpd -> Pure-ftpd 

 References:
https://github.com/jedisct1/pure-ftpd/commit/65c4d4ad331e94661de763e9b5304d28698999c4
https://bugzilla.novell.com/show_bug.cgi?id=686590
http://archives.pureftpd.org/archives.cgi?100:mss:3910:201103:cpeojfkblajnpinkeadd
https://bugzilla.redhat.com/show_bug.cgi?id=683221
http://www.pureftpd.org/project/pure-ftpd/news
http://secunia.com/advisories/44548
http://secunia.com/advisories/43988
http://openwall.com/lists/oss-security/2011/04/11/8
http://openwall.com/lists/oss-security/2011/04/11/7
http://openwall.com/lists/oss-security/2011/04/11/3
http://openwall.com/lists/oss-security/2011/04/11/14
http://lists.opensuse.org/opensuse-updates/2011-05/msg00029.html
http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html
http://archives.pureftpd.org/archives.cgi?100:mss:3906:201103:cpeojfkblajnpinkeadd
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