140 lines
5.9 KiB
JSON
140 lines
5.9 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-84318",
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"state": "PUBLISHED",
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"assignerShortName": "GitHub_M",
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"dateReserved": "2026-09-01T16:17:43.079Z",
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"datePublished": "2026-10-12T20:20:18.595Z",
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"dateUpdated": "2026-10-13T14:59:04.180Z"
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},
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"containers": {
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"cna": {
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"title": "Nginx UI: MCP `nginx_config_add` Bypasses Directive Validation — Authenticated RCE",
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-693",
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"lang": "en",
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"description": "CWE-693: Protection Mechanism Failure",
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"type": "CWE"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV3_1": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "HIGH",
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"baseScore": 8.8,
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"baseSeverity": "HIGH",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"scope": "UNCHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
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"version": "3.1"
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}
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}
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],
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"references": [
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{
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"name": "https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-9jww-cxg5-rj9m",
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-9jww-cxg5-rj9m"
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},
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{
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"name": "https://github.com/0xJacky/nginx-ui/commit/23d1934099b05b2a01589b48129dc3d3159d91c2",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/0xJacky/nginx-ui/commit/23d1934099b05b2a01589b48129dc3d3159d91c2"
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},
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{
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"name": "https://github.com/0xJacky/nginx-ui/releases/tag/v2.4.1",
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/0xJacky/nginx-ui/releases/tag/v2.4.1"
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}
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],
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"affected": [
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{
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"vendor": "0xJacky",
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"product": "nginx-ui",
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"versions": [
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{
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"version": ">= 2.0.0-rc.6, < 2.4.1",
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"status": "affected"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M",
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"dateUpdated": "2026-10-12T20:20:18.595Z"
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},
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"descriptions": [
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{
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"lang": "en",
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"value": "Nginx UI is a web user interface for the Nginx web server. From 2.0.0-rc.6 until 2.4.1, the MCP tool nginx_config_add writes nginx configuration files to disk and triggers an nginx reload without calling config.ValidateConfigFile. The identical flow in the REST API (POST /api/configs) does call that function and correctly rejects dangerous directives. An authenticated attacker can exploit this gap to write config files containing any blocked directive (perl, js_import, load_module, user root, etc.), bypassing nginx-ui's entire security layer. On a server with the nginx Perl, njs, or Lua module loaded, this is post-authentication Remote Code Execution. This issue is fixed in version 2.4.1."
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}
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],
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"source": {
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"advisory": "GHSA-9jww-cxg5-rj9m",
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"discovery": "UNKNOWN"
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}
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/0xJacky/nginx-ui/security/advisories/GHSA-9jww-cxg5-rj9m",
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"tags": [
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"exploit"
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-10-13T14:58:57.805122Z",
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"id": "CVE-2026-84318",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "total"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-10-13T14:59:04.180Z"
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}
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}
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]
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}
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} |