cve-2021-31207
Vulnerability from cvelistv5
Published
2021-05-11 19:11
Modified
2024-08-03 22:55
Severity ?
EPSS score ?
Summary
Microsoft Exchange Server Security Feature Bypass Vulnerability
References
| ▼ | URL | Tags | |
|---|---|---|---|
| secure@microsoft.com | http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html | Exploit, Third Party Advisory, VDB Entry | |
| secure@microsoft.com | https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31207 | Patch, Vendor Advisory | |
| secure@microsoft.com | https://www.zerodayinitiative.com/advisories/ZDI-21-819/ | Third Party Advisory, VDB Entry |
Impacted products
CISA Known exploited vulnerability
Data from the Known Exploited Vulnerabilities Catalog
Date added: 2021-11-03
Due date: 2021-11-17
Required action: Apply updates per vendor instructions.
Used in ransomware: Known
Notes: https://nvd.nist.gov/vuln/detail/CVE-2021-31207
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-03T22:55:53.519Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31207"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://www.zerodayinitiative.com/advisories/ZDI-21-819/"
},
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"cpes": [
"cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*"
],
"platforms": [
"x64-based Systems"
],
"product": "Microsoft Exchange Server 2013 Cumulative Update 23",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "15.00.1497.018",
"status": "affected",
"version": "15.00.0",
"versionType": "custom"
}
]
},
{
"cpes": [
"cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9:*:*:*:*:*:*"
],
"platforms": [
"x64-based Systems"
],
"product": "Microsoft Exchange Server 2019 Cumulative Update 9",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "15.02.0858.012",
"status": "affected",
"version": "15.02.0",
"versionType": "custom"
}
]
},
{
"cpes": [
"cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_20:*:*:*:*:*:*"
],
"platforms": [
"x64-based Systems"
],
"product": "Microsoft Exchange Server 2016 Cumulative Update 20",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "15.01.2242.010",
"status": "affected",
"version": "15.01.0",
"versionType": "custom"
}
]
},
{
"cpes": [
"cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:*"
],
"platforms": [
"x64-based Systems"
],
"product": "Microsoft Exchange Server 2016 Cumulative Update 19",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "15.01.2176.014",
"status": "affected",
"version": "15.01.0",
"versionType": "custom"
}
]
},
{
"cpes": [
"cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:*"
],
"platforms": [
"x64-based Systems"
],
"product": "Microsoft Exchange Server 2019 Cumulative Update 8",
"vendor": "Microsoft",
"versions": [
{
"lessThan": "15.02.0792.015",
"status": "affected",
"version": "15.02.0",
"versionType": "custom"
}
]
}
],
"datePublic": "2021-05-11T07:00:00+00:00",
"descriptions": [
{
"lang": "en-US",
"value": "Microsoft Exchange Server Security Feature Bypass Vulnerability"
}
],
"metrics": [
{
"cvssV3_1": {
"baseScore": 6.6,
"baseSeverity": "MEDIUM",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en-US",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "Defense in Depth",
"lang": "en-US",
"type": "Impact"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2023-12-28T23:57:04.957Z",
"orgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"shortName": "microsoft"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31207"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "https://www.zerodayinitiative.com/advisories/ZDI-21-819/"
},
{
"tags": [
"x_refsource_MISC"
],
"url": "http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html"
}
],
"title": "Microsoft Exchange Server Security Feature Bypass Vulnerability"
}
},
"cveMetadata": {
"assignerOrgId": "f38d906d-7342-40ea-92c1-6c4a2c6478c8",
"assignerShortName": "microsoft",
"cveId": "CVE-2021-31207",
"datePublished": "2021-05-11T19:11:41",
"dateReserved": "2021-04-14T00:00:00",
"dateUpdated": "2024-08-03T22:55:53.519Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"meta": {
"cisa_known_exploited": {
"cveID": "CVE-2021-31207",
"cwes": "[\"CWE-20\", \"CWE-434\"]",
"dateAdded": "2021-11-03",
"dueDate": "2021-11-17",
"knownRansomwareCampaignUse": "Known",
"notes": "https://nvd.nist.gov/vuln/detail/CVE-2021-31207",
"product": "Exchange Server",
"requiredAction": "Apply updates per vendor instructions.",
"shortDescription": "Microsoft Exchange Server contains an unspecified vulnerability that allows for security feature bypass.",
"vendorProject": "Microsoft",
"vulnerabilityName": "Microsoft Exchange Server Security Feature Bypass Vulnerability"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2021-31207\",\"sourceIdentifier\":\"secure@microsoft.com\",\"published\":\"2021-05-11T19:15:10.397\",\"lastModified\":\"2024-07-26T19:25:27.687\",\"vulnStatus\":\"Analyzed\",\"cveTags\":[],\"cisaExploitAdd\":\"2021-11-03\",\"cisaActionDue\":\"2021-11-17\",\"cisaRequiredAction\":\"Apply updates per vendor instructions.\",\"cisaVulnerabilityName\":\"Microsoft Exchange Server Security Feature Bypass Vulnerability\",\"descriptions\":[{\"lang\":\"en\",\"value\":\"Microsoft Exchange Server Security Feature Bypass Vulnerability\"},{\"lang\":\"es\",\"value\":\"Una vulnerabilidad de Omisi\u00f3n de la Caracter\u00edstica de Seguridad de Microsoft Exchange Server\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"secure@microsoft.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":6.6,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":0.7,\"impactScore\":5.9},{\"source\":\"nvd@nist.gov\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"HIGH\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\",\"baseScore\":6.6,\"baseSeverity\":\"MEDIUM\"},\"exploitabilityScore\":0.7,\"impactScore\":5.9}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:S/C:P/I:P/A:P\",\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\",\"baseScore\":6.5},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.0,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-434\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:microsoft:exchange_server:2013:cumulative_update_23:*:*:*:*:*:*\",\"matchCriteriaId\":\"DA166F2A-D83B-4D50-AD0B-668D813E0585\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_19:*:*:*:*:*:*\",\"matchCriteriaId\":\"28FCA0E8-7D27-4746-9731-91B834CA3E64\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:microsoft:exchange_server:2016:cumulative_update_20:*:*:*:*:*:*\",\"matchCriteriaId\":\"19C1EE0C-B8DD-4B91-BE4B-1C42D72FB718\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_8:*:*:*:*:*:*\",\"matchCriteriaId\":\"44ECF39A-1DE1-4870-A494-06A53494338D\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:microsoft:exchange_server:2019:cumulative_update_9:*:*:*:*:*:*\",\"matchCriteriaId\":\"71CDF29B-116B-4DE2-AFD0-B62477FF0AEB\"}]}]}],\"references\":[{\"url\":\"http://packetstormsecurity.com/files/163895/Microsoft-Exchange-ProxyShell-Remote-Code-Execution.html\",\"source\":\"secure@microsoft.com\",\"tags\":[\"Exploit\",\"Third Party Advisory\",\"VDB Entry\"]},{\"url\":\"https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-31207\",\"source\":\"secure@microsoft.com\",\"tags\":[\"Patch\",\"Vendor Advisory\"]},{\"url\":\"https://www.zerodayinitiative.com/advisories/ZDI-21-819/\",\"source\":\"secure@microsoft.com\",\"tags\":[\"Third Party Advisory\",\"VDB Entry\"]}]}}"
}
}
Loading...
Loading...
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.