NGINX Plus and NGINX Open Source have a vulnerability in the ngx_http_proxy_v2_module and ngx_http_grpc_module modules. This vulnerability exists when the proxy_http_version to 2 or grpc_pass directives are used to proxy HTTP/2 traffic, the ignore_invalid_headers directive is set to off, and the large_client_header_buffers directive size is larger than 2 megabytes. A remote, unauthenticated attacker, along with conditions beyond their control, could send large headers while creating an upstream request. This may cause a heap-based buffer overflow in the NGINX worker process leading to a restart. Additionally, attackers can execute code on systems with Address Space Layout Randomization (ASLR) disabled or when the attacker can bypass ASLR. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
4.9.0CPE matchmatch criteria | cpe:2.3:a:f5:dos:4.9.0:*:*:*:*:nginx:*:* | ||
>= 4.3.0, <= 4.7.0CPE matchmatch criteria | cpe:2.3:a:f5:nginx_app_protect_dos:*:*:*:*:*:*:*:* | ||
>= 4.10.0, <= 4.16.0CPE matchmatch criteria | cpe:2.3:a:f5:nginx_app_protect_waf:*:*:*:*:*:*:*:* | ||
>= 5.2.0, <= 5.8.0CPE matchmatch criteria | cpe:2.3:a:f5:nginx_app_protect_waf:*:*:*:*:*:*:*:* | ||
>= 1.3.0, <= 1.6.2CPE matchmatch criteria | cpe:2.3:a:f5:nginx_gateway_fabric:*:*:*:*:*:*:*:* |
CVSS version used by this source: 4.0
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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