195 lines
8.2 KiB
JSON
195 lines
8.2 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-2021-4461",
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"assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"state": "PUBLISHED",
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"assignerShortName": "VulnCheck",
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"dateReserved": "2025-10-30T20:08:37.632Z",
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"datePublished": "2025-10-30T21:16:23.161Z",
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"dateUpdated": "2025-11-28T19:17:19.543Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"defaultStatus": "unknown",
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"modules": [
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"thirdpartyController.do – `enc` parameter decoding (LightWeightEncoder) and parsing"
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],
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"product": "Zhiyuan OA Web Application System",
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"vendor": "Seeyon",
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"versions": [
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{
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"lessThanOrEqual": "7.0 SP1",
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"status": "affected",
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"version": "0",
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"versionType": "custom"
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}
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]
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"cpeMatch": [
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{
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"criteria": "cpe:2.3:a:seeyon:zhiyuan_oa_web_application_system:*:*:*:*:*:*:*:*",
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"versionEndIncluding": "7.0_sp1",
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"versionStartIncluding": "0",
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"vulnerable": true
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}
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],
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"negate": false,
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"operator": "OR"
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}
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],
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"operator": "OR"
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}
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],
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"credits": [
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{
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"lang": "en",
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"type": "finder",
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"value": "Anonymous User via WeChat"
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}
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],
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"descriptions": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "Seeyon Zhiyuan OA Web Application System versions up to and including 7.0 SP1 improperly decode and parse the `enc` parameter in thirdpartyController.do. The decoded map values can influence session attributes without sufficient authentication/authorization checks, enabling attackers to assign a session to arbitrary user IDs. VulnCheck has observed this vulnerability being exploited in the wild as of 2025-10-30 at 00:30:40.855917 UTC."
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}
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],
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"value": "Seeyon Zhiyuan OA Web Application System versions up to and including 7.0 SP1 improperly decode and parse the `enc` parameter in thirdpartyController.do. The decoded map values can influence session attributes without sufficient authentication/authorization checks, enabling attackers to assign a session to arbitrary user IDs. VulnCheck has observed this vulnerability being exploited in the wild as of 2025-10-30 at 00:30:40.855917 UTC."
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}
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],
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"metrics": [
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{
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"cvssV4_0": {
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"attackVector": "NETWORK",
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"baseScore": 9.3,
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"baseSeverity": "CRITICAL",
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"privilegesRequired": "NONE",
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"providerUrgency": "NOT_DEFINED",
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"subAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"userInteraction": "NONE",
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"valueDensity": "NOT_DEFINED",
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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N",
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"version": "4.0",
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"vulnAvailabilityImpact": "NONE",
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"vulnConfidentialityImpact": "HIGH",
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"vulnIntegrityImpact": "HIGH",
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"vulnerabilityResponseEffort": "NOT_DEFINED"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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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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"cweId": "CWE-306",
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"description": "CWE-306 Missing Authentication for Critical Function",
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"lang": "en",
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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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"providerMetadata": {
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"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
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"shortName": "VulnCheck",
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"dateUpdated": "2025-10-30T21:18:19.787Z"
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},
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"references": [
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{
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"tags": [
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"exploit"
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],
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"url": "https://mp.weixin.qq.com/s/0AqdfTrZUVrwTMbKEKresg"
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},
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{
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"tags": [
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"exploit"
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],
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"url": "https://github.com/chaitin/xray/blob/f90cf321bc4d294bbf6625a9c4853f3bfdf0a384/pocs/seeyon-oa-cookie-leak.yml"
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},
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{
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"tags": [
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"exploit"
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],
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"url": "https://github.com/projectdiscovery/nuclei-templates/blob/1ca6b8e6fe225cbd46dcb893dcaee01447afa8c0/http/misconfiguration/seeyon-unauth.yaml#L20"
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},
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{
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"tags": [
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"third-party-advisory"
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],
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"url": "https://www.vulncheck.com/advisories/seeyon-zhiyuan-oa-web-application-system-authentication-bypass"
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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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"tags": [
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"x_known-exploited-vulnerability"
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],
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"title": "Seeyon Zhiyuan OA Web Application System < 7.0 SP1 Authentication Bypass",
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"x_generator": {
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"engine": "Vulnogram 0.4.0"
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}
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},
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"adp": [
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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": "2025-11-28T19:16:58.418427Z",
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"id": "CVE-2021-4461",
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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": "2025-11-28T19:17:19.543Z"
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}
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}
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]
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}
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} |