NGINX Plus and NGINX Open Source have a vulnerability in the ngx_mail_smtp_module module due to the improper handling of CRLF sequences in DNS responses. This allows an attacker-controlled DNS server to inject arbitrary headers into SMTP upstream requests, leading to potential request manipulation. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
High
Difficult to exploit
Attack Requirements
Present
Additional conditions required
Privileges Required
None
No privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
None
No data leak
Integrity
Low
Partial data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 19
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
F5 Nginx_Plus
cpe:2.3:a:f5:nginx_plus:r32:p1:*:*:*:*:*:*
|
— | — |
|
F5 Nginx_Plus
cpe:2.3:a:f5:nginx_plus:r32:p2:*:*:*:*:*:*
|
— | — |
|
F5 Nginx_Plus
cpe:2.3:a:f5:nginx_plus:r32:p3:*:*:*:*:*:*
|
— | — |
|
F5 Nginx_Plus
cpe:2.3:a:f5:nginx_plus:r32:p4:*:*:*:*:*:*
|
— | — |
|
F5 Nginx_Plus
cpe:2.3:a:f5:nginx_plus:r33:*:*:*:*:*:*:*
|
— | — |
|
F5 Nginx_Plus
cpe:2.3:a:f5:nginx_plus:r33:p1:*:*:*:*:*:*
|
— | — |
|
F5 Nginx_Plus
cpe:2.3:a:f5:nginx_plus:r33:p2:*:*:*:*:*:*
|
— | — |
|
F5 Nginx_Plus
cpe:2.3:a:f5:nginx_plus:r33:p3:*:*:*:*:*:*
|
— | — |
|
F5 Nginx_Plus
cpe:2.3:a:f5:nginx_plus:r34:*:*:*:*:*:*:*
|
— | — |
|
F5 Nginx_Plus
cpe:2.3:a:f5:nginx_plus:r34:p1:*:*:*:*:*:*
|
— | — |
|
F5 Nginx_Plus
cpe:2.3:a:f5:nginx_plus:r34:p2:*:*:*:*:*:*
|
— | — |
|
F5 Nginx_Plus
cpe:2.3:a:f5:nginx_plus:r35:*:*:*:*:*:*:*
|
— | — |
|
F5 Nginx_Plus
cpe:2.3:a:f5:nginx_plus:r35:p1:*:*:*:*:*:*
|
— | — |
|
F5 Nginx_Plus
cpe:2.3:a:f5:nginx_plus:r36:*:*:*:*:*:*:*
|
— | — |
|
F5 Nginx_Plus
cpe:2.3:a:f5:nginx_plus:r36:p1:*:*:*:*:*:*
|
— | — |
|
F5 Nginx_Plus
cpe:2.3:a:f5:nginx_plus:r36:p2:*:*:*:*:*:*
|
— | — |
|
F5 Nginx_Open_Source
cpe:2.3:a:f5:nginx_open_source:*:*:*:*:*:*:*:*
|
0.6.27
|
<= 0.9.7
|
|
F5 Nginx_Open_Source
cpe:2.3:a:f5:nginx_open_source:*:*:*:*:*:*:*:*
|
1.0.0
|
1.28.3
|
|
F5 Nginx_Open_Source
cpe:2.3:a:f5:nginx_open_source:*:*:*:*:*:*:*:*
|
1.29.0
|
1.29.7
|