Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Pureftpd | Pure-Ftpd | <= 1.0.29 |
Related Weaknesses (CWE)
References
- http://archives.pureftpd.org/archives.cgi?100:mss:3906:201103:cpeojfkblajnpinkea
- http://archives.pureftpd.org/archives.cgi?100:mss:3910:201103:cpeojfkblajnpinkeaPatch
- http://lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html
- http://lists.opensuse.org/opensuse-updates/2011-05/msg00029.html
- http://openwall.com/lists/oss-security/2011/04/11/14
- http://openwall.com/lists/oss-security/2011/04/11/3
- http://openwall.com/lists/oss-security/2011/04/11/7
- http://openwall.com/lists/oss-security/2011/04/11/8
- http://secunia.com/advisories/43988Vendor Advisory
- http://secunia.com/advisories/44548
- http://www.pureftpd.org/project/pure-ftpd/news
- https://bugzilla.novell.com/show_bug.cgi?id=686590Patch
- https://bugzilla.redhat.com/show_bug.cgi?id=683221
- https://github.com/jedisct1/pure-ftpd/commit/65c4d4ad331e94661de763e9b5304d28698Patch
- http://archives.pureftpd.org/archives.cgi?100:mss:3906:201103:cpeojfkblajnpinkea
FAQ
What is CVE-2011-1575?
CVE-2011-1575 is a vulnerability with a CVSS score of 5.8 (MEDIUM). 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...
How severe is CVE-2011-1575?
CVE-2011-1575 has been rated MEDIUM with a CVSS base score of 5.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2011-1575?
Check the references section above for vendor advisories and patch information. Affected products include: Pureftpd Pure-Ftpd.