CVE-2014-3556
Last modified
CVE-2014-3556 is a vulnerability of currently unknown severity. The STARTTLS implementation in mail/ngx_mail_smtp_handler.c in the SMTP proxy in nginx 1.5.x and 1.6.x before 1.6.1 and 1.7.x before 1.7.4 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP 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.. EPSS estimates a 7.83% chance of exploitation in the next 30 days.
Description
The STARTTLS implementation in mail/ngx_mail_smtp_handler.c in the SMTP proxy in nginx 1.5.x and 1.6.x before 1.6.1 and 1.7.x before 1.7.4 does not properly restrict I/O buffering, which allows man-in-the-middle attackers to insert commands into encrypted SMTP 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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| F5 | Nginx | >= 1.5.6, < 1.6.1 |
| F5 | Nginx | >= 1.7.0, < 1.7.4 |
References
- http://mailman.nginx.org/pipermail/nginx-announce/2014/000144.htmlPatch, Vendor Advisory
- http://marc.info/?l=bugtraq&m=142103967620673&w=2Issue Tracking, Third Party Advisory
- http://nginx.org/download/patch.2014.starttls.txtPatch, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1126891Issue Tracking, Third Party Advisory
- http://mailman.nginx.org/pipermail/nginx-announce/2014/000144.htmlPatch, Vendor Advisory
- http://marc.info/?l=bugtraq&m=142103967620673&w=2Issue Tracking, Third Party Advisory
- http://nginx.org/download/patch.2014.starttls.txtPatch, Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1126891Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
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