Vulnerability in Pureftpd Pure-Ftpd
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.
Published · last modified .
CVSS v2 metric
CVSS v2 base score 5.8 (Medium). Vector: AV:N/AC:M/Au:N/C:P/I:P/A:N. This CVE predates CVSS v3 and has no v3 score from NVD.
EPSS exploit prediction
EPSS: 0.333 (98.4th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.333 · newest: 0.333 · change: 0.000
Affected products
- Pureftpd Pure-Ftpd — versions 0.90, 0.91, 0.92
Weakness classification (CWE)
Public proof-of-concept exploits
References
- openwall.com/lists/oss-security/2011/04/11/14 (mailing-list)
- lists.opensuse.org/opensuse-security-announce/2011-05/msg00005.html (vendor-advisory)
- bugzilla.redhat.com/show_bug.cgi
- archives.pureftpd.org/archives.cgi (mailing-list)
- lists.opensuse.org/opensuse-updates/2011-05/msg00029.html (mailing-list)
- secunia.com/advisories/43988 (Vendor Advisory, third-party-advisory)
- openwall.com/lists/oss-security/2011/04/11/7 (mailing-list)
- secunia.com/advisories/44548 (third-party-advisory)
- openwall.com/lists/oss-security/2011/04/11/8 (mailing-list)
- openwall.com/lists/oss-security/2011/04/11/3 (mailing-list)
Frequently asked questions
- What is CVE-2011-1575?
- CVE-2011-1575 is a vulnerability in Pureftpd Pure-Ftpd, classified under CWE-399. Published 2011-05-23.
- Is CVE-2011-1575 known to be exploited?
- 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.