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CRITICAL

CVE-2018-9230

CVSS v3

9.8

CRITICAL

Score EPSS

13.2 %

probabilité d’exploitation au 2026-10-05

CISA KEV

Non

exploitation connue

Exploitation

—

statut SSVC

Description

In OpenResty through 1.13.6.1, URI parameters are obtained using the ngx.req.get_uri_args and ngx.req.get_post_args functions that ignore parameters beyond the hundredth one, which might allow remote attackers to bypass intended access restrictions or interfere with certain Web Application Firewall (ngx_lua_waf or X-WAF) products. NOTE: the vendor has reported that 100 parameters is an intentional default setting, but is adjustable within the API. The vendor's position is that a security-relevant misuse of the API by a WAF product is a vulnerability in the WAF product, not a vulnerability in OpenResty

Détails techniques

Publiée le
2018-04-02

Questions fréquentes

Qu’est-ce que CVE-2018-9230 ?

In OpenResty through 1.13.6.1, URI parameters are obtained using the ngx.req.get_uri_args and ngx.req.get_post_args functions that ignore parameters beyond the hundredth one, which might allow remote attackers to bypass intended access restrictions or interfere with certain Web Application Firewall (ngx_lua_waf or X-WAF) products. NOTE: the vendor has reported that 100 parameters is an intentional default setting, but is adjustable within the API. The vendor's position is that a security-relevant misuse of the API by a WAF product is a vulnerability in the WAF product, not a vulnerability in OpenResty

CVE-2018-9230 est-elle activement exploitée ?

Aucune exploitation active de CVE-2018-9230 n’est confirmée. Son score EPSS était de 13.2 % au 2026-10-05, soit la probabilité estimée d’exploitation dans les 30 prochains jours.

Quel est le score CVSS de CVE-2018-9230 ?

CVE-2018-9230 a un score de base CVSS v3 de 9.8 (gravité CRITICAL).

CVE-2018-9230 touche-t-elle votre environnement ?

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