CVE-2011-1575
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.
Key facts
- CVSS score
- 5.8 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:M/Au:N/C:P/I:P/A:N- Weakness (CWE)
- CWE-399
- EPSS score
- 33.3% (98th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2011-1576)
- Published
- May 23, 2011
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2011-1576 in the EU Vulnerability Database. Last updated in EUVD on August 6, 2024.
View on the EU Vulnerability DatabaseAffected products
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
- pureftpd / pure-ftpd
and 37 more…
References
- http://archives.pureftpd.org/archives.cgi?100:mss:3906:201103:cpeojfkblajnpinkeadd
- http://archives.pureftpd.org/archives.cgi?100:mss:3910:201103:cpeojfkblajnpinkeadd(Patch)
- 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/43988(Vendor Advisory)
- http://secunia.com/advisories/44548
- http://www.pureftpd.org/project/pure-ftpd/news
- https://bugzilla.novell.com/show_bug.cgi?id=686590(Patch)
- https://bugzilla.redhat.com/show_bug.cgi?id=683221
- https://github.com/jedisct1/pure-ftpd/commit/65c4d4ad331e94661de763e9b5304d28698999c4(Patch)
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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