CVE-2014-3556

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.

CVSS v2.0 6.8 MEDIUM

6.8^/10

CVSS v2.0 : MEDIUM

Vector : AV:N/AC:M/Au:N/C:P/I:P/A:P

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
http://mailman.nginx.org/pipermail/nginx-announce/2014/000144.html	Patch Vendor Advisory
http://marc.info/?l=bugtraq&m=142103967620673&w=2	Issue Tracking Third Party Advisory
http://nginx.org/download/patch.2014.starttls.txt	Patch Vendor Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1126891	Issue Tracking Third Party Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:f5:nginx::::::::
	cpe:2.3:a:f5:nginx::::::::

History

10 Nov 2021, 15:59

Type	Values Removed	Values Added
CPE	cpe:2.3:a:nginx:nginx::::::::	cpe:2.3:a:f5:nginx::::::::

Information

Published : 2014-12-29 20:59

Updated : 2023-12-10 11:31

NVD link : CVE-2014-3556

Mitre link : CVE-2014-3556

CVE.ORG link : CVE-2014-3556

JSON object : View

Products Affected

f5

nginx

CWE

CWE-77

Improper Neutralization of Special Elements used in a Command ('Command Injection')

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