203 lines
9.2 KiB
JSON
203 lines
9.2 KiB
JSON
{
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"containers": {
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"cna": {
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"affected": [
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{
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"product": "onedev",
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"vendor": "theonedev",
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"versions": [
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{
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"status": "affected",
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"version": "< 4.0.3"
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}
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]
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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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"value": "OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, there is an issue involving YAML parsing which can lead to post-auth remote code execution. In order to parse and process YAML files, OneDev uses SnakeYaml which by default (when not using `SafeConstructor`) allows the instantiation of arbitrary classes. We can leverage that to run arbitrary code by instantiating classes such as `javax.script.ScriptEngineManager` and using `URLClassLoader` to load the script engine provider, resulting in the instantiation of a user controlled class. For a full example refer to the referenced GHSA. This issue was addressed in 4.0.3 by only allowing certain known classes to be deserialized"
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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": "NONE",
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"baseScore": 9.6,
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"baseSeverity": "CRITICAL",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"scope": "CHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
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"version": "3.1"
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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-74",
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"description": "CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')",
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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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"dateUpdated": "2021-01-15T20:10:31.000Z",
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"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"shortName": "GitHub_M"
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},
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"references": [
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{
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"tags": [
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"x_refsource_CONFIRM"
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],
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"url": "https://github.com/theonedev/onedev/security/advisories/GHSA-7xhq-m2q9-6hpm"
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},
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{
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"tags": [
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"x_refsource_MISC"
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],
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"url": "https://github.com/theonedev/onedev/commit/d6fc4212b1ac1e9bbe3ce444e95f9af1e3ab8b66"
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}
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],
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"source": {
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"advisory": "GHSA-7xhq-m2q9-6hpm",
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"discovery": "UNKNOWN"
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},
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"title": "Post-Auth Unsafe Yaml deserialization",
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"x_legacyV4Record": {
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"CVE_data_meta": {
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"ASSIGNER": "security-advisories@github.com",
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"ID": "CVE-2021-21249",
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"STATE": "PUBLIC",
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"TITLE": "Post-Auth Unsafe Yaml deserialization"
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},
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"affects": {
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"vendor": {
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"vendor_data": [
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{
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"product": {
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"product_data": [
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{
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"product_name": "onedev",
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"version": {
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"version_data": [
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{
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"version_value": "< 4.0.3"
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}
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]
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}
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}
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]
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},
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"vendor_name": "theonedev"
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}
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]
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}
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},
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"data_format": "MITRE",
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"data_type": "CVE",
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"data_version": "4.0",
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"description": {
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"description_data": [
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{
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"lang": "eng",
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"value": "OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, there is an issue involving YAML parsing which can lead to post-auth remote code execution. In order to parse and process YAML files, OneDev uses SnakeYaml which by default (when not using `SafeConstructor`) allows the instantiation of arbitrary classes. We can leverage that to run arbitrary code by instantiating classes such as `javax.script.ScriptEngineManager` and using `URLClassLoader` to load the script engine provider, resulting in the instantiation of a user controlled class. For a full example refer to the referenced GHSA. This issue was addressed in 4.0.3 by only allowing certain known classes to be deserialized"
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}
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]
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},
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"impact": {
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"cvss": {
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"attackComplexity": "LOW",
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"attackVector": "NETWORK",
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"availabilityImpact": "NONE",
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"baseScore": 9.6,
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"baseSeverity": "CRITICAL",
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"confidentialityImpact": "HIGH",
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"integrityImpact": "HIGH",
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"privilegesRequired": "LOW",
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"scope": "CHANGED",
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"userInteraction": "NONE",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
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"version": "3.1"
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}
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},
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"problemtype": {
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"problemtype_data": [
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{
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"description": [
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{
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"lang": "eng",
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"value": "CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')"
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}
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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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"reference_data": [
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{
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"name": "https://github.com/theonedev/onedev/security/advisories/GHSA-7xhq-m2q9-6hpm",
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"refsource": "CONFIRM",
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"url": "https://github.com/theonedev/onedev/security/advisories/GHSA-7xhq-m2q9-6hpm"
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},
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{
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"name": "https://github.com/theonedev/onedev/commit/d6fc4212b1ac1e9bbe3ce444e95f9af1e3ab8b66",
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"refsource": "MISC",
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"url": "https://github.com/theonedev/onedev/commit/d6fc4212b1ac1e9bbe3ce444e95f9af1e3ab8b66"
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}
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]
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},
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"source": {
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"advisory": "GHSA-7xhq-m2q9-6hpm",
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"discovery": "UNKNOWN"
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}
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}
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},
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"adp": [
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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": "2024-08-03T18:09:15.155Z"
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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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"tags": [
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"x_refsource_CONFIRM",
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"x_transferred"
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],
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"url": "https://github.com/theonedev/onedev/security/advisories/GHSA-7xhq-m2q9-6hpm"
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},
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{
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"tags": [
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"x_refsource_MISC",
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"x_transferred"
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],
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"url": "https://github.com/theonedev/onedev/commit/d6fc4212b1ac1e9bbe3ce444e95f9af1e3ab8b66"
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}
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]
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}
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]
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},
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"cveMetadata": {
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"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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"assignerShortName": "GitHub_M",
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"cveId": "CVE-2021-21249",
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"datePublished": "2021-01-15T20:10:31.000Z",
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"dateReserved": "2020-12-22T00:00:00.000Z",
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"dateUpdated": "2024-08-03T18:09:15.155Z",
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"state": "PUBLISHED"
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},
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"dataType": "CVE_RECORD",
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"dataVersion": "5.1"
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} |