170 lines
6.8 KiB
JSON
170 lines
6.8 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-2026-11405",
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"assignerOrgId": "37e5125f-f79b-445b-8fad-9564f167944b",
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"state": "PUBLISHED",
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"assignerShortName": "certcc",
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"dateReserved": "2026-06-05T18:12:15.445Z",
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"datePublished": "2026-07-06T19:17:07.891Z",
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"dateUpdated": "2026-07-08T13:40:24.471Z"
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},
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"containers": {
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"cna": {
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"title": "Hidden backdoor authentication mechanism in multiple versions of Tenda firmware allows admin access to web management interface",
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"descriptions": [
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{
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"lang": "en",
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"value": "The web server binary /bin/httpd contains a hidden backdoor authentication mechanism in the login() function at 004c88b8.\r\n\r\n- The function contains a normal authentication path using MD5/hash-based password verification (prod_encode64/PasswordToMd5/check_rand_key).\r\n- After normal authentication fails, it calls GetValue(\"sys.rzadmin.password\") to read a backdoor password from the device configuration.\r\n- It performs a direct strcmp() comparison (plaintext, not hashed) between the config value and the user-supplied password.\r\n\r\nA successful match grants role=2 (admin-level access) and creates a valid session. The rzadmin username is never checked — any username works with the backdoor"
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}
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],
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"source": {
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"discovery": "UNKNOWN"
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},
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"affected": [
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{
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"vendor": "Tenda",
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"product": "firmware",
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"versions": [
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{
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"status": "affected",
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"version": "US_AC6V2.0RTL_V15.03.06.51_multi_T"
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}
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]
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},
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{
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"vendor": "Tenda",
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"product": "firmware",
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"versions": [
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{
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"status": "affected",
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"version": "US_AC5V1.0RTL_V15.03.06.48_multi_TDE01"
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}
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]
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},
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{
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"vendor": "Tenda",
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"product": "firmware",
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"versions": [
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{
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"status": "affected",
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"version": "US_AC10V1.0re_V15.03.06.46_multi_TDE01"
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}
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]
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},
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{
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"vendor": "Tenda",
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"product": "firmware",
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"versions": [
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{
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"status": "affected",
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"version": "US_W15EV1.0br_V15.11.0.5(1068_1567_841)_EN_TDE"
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}
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]
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},
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{
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"vendor": "Tenda",
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"product": "firmware",
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"versions": [
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{
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"status": "affected",
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"version": "US_FH1201V1.0BR_V1.2.0.14(408)_EN_TD"
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}
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]
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"lang": "en",
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"description": "CWE-912: Hidden Functionality"
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}
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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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"url": "https://cwe.mitre.org/data/definitions/912.html"
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},
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{
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"url": "https://kb.cert.org/vuls/id/213560"
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}
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],
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"x_generator": {
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"engine": "VINCE 3.0.43",
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"env": "prod",
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"origin": "https://cveawg.mitre.org/api/cve/CVE-2026-11405"
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},
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"providerMetadata": {
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"orgId": "37e5125f-f79b-445b-8fad-9564f167944b",
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"shortName": "certcc",
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"dateUpdated": "2026-07-06T19:24:17.280Z"
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}
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},
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"adp": [
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{
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"title": "CVE Program Container",
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"references": [
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{
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"url": "https://www.kb.cert.org/vuls/id/213560"
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}
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],
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"providerMetadata": {
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"orgId": "af854a3a-2127-422b-91ae-364da2661108",
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"shortName": "CVE",
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"dateUpdated": "2026-07-06T20:37:55.739Z"
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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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"scope": "UNCHANGED",
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"version": "3.1",
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"baseScore": 9.8,
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"attackVector": "NETWORK",
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"baseSeverity": "CRITICAL",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
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"integrityImpact": "HIGH",
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"userInteraction": "NONE",
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"attackComplexity": "LOW",
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"availabilityImpact": "HIGH",
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"privilegesRequired": "NONE",
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"confidentialityImpact": "HIGH"
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}
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},
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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": "2026-07-08T03:56:43.961536Z",
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"id": "CVE-2026-11405",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "yes"
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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": "2026-07-08T13:40:24.471Z"
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}
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}
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]
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}
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} |