CVE-2021-34418 (GCVE-0-2021-34418)
Vulnerability from cvelistv5 – Published: 2021-11-11 22:59 – Updated: 2024-09-16 22:14
VLAI?
Title
Pre-auth Null pointer crash in on-premise web console
Summary
The login routine of the web console in the Zoom On-Premise Meeting Connector before version 4.6.239.20200613, Zoom On-Premise Meeting Connector MMR before version 4.6.239.20200613, Zoom On-Premise Recording Connector before version 3.8.42.20200905, Zoom On-Premise Virtual Room Connector before version 4.4.6344.20200612, and Zoom On-Premise Virtual Room Connector Load Balancer before version 2.5.5492.20200616 fails to validate that a NULL byte was sent while authenticating. This could lead to a crash of the login service.
Severity ?
4 (Medium)
CWE
- Improper Input Validation
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Zoom Video Communications Inc | Zoom On-Premise Meeting Connector |
Affected:
unspecified , < 4.6.239.20200613
(custom)
|
||||||||||||||||||||||
|
||||||||||||||||||||||||
Credits
Jeremy Brown
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T00:12:50.149Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"tags": [
"x_refsource_MISC",
"x_transferred"
],
"url": "https://explore.zoom.us/en/trust/security/security-bulletin"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "Zoom On-Premise Meeting Connector",
"vendor": "Zoom Video Communications Inc",
"versions": [
{
"lessThan": "4.6.239.20200613",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Zoom On-Premise Meeting Connector MMR",
"vendor": "Zoom Video Communications Inc",
"versions": [
{
"lessThan": "4.6.239.20200613",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Zoom On-Premise Recording Connector",
"vendor": "Zoom Video Communications Inc",
"versions": [
{
"lessThan": "3.8.42.20200905",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Zoom On-Premise Virtual Room Connector",
"vendor": "Zoom Video Communications Inc",
"versions": [
{
"lessThan": "4.4.6344.20200612",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
},
{
"product": "Zoom On-Premise Virtual Room Connector Load Balancer",
"vendor": "Zoom Video Communications Inc",
"versions": [
{
"lessThan": "2.5.5492.20200616",
"status": "affected",
"version": "unspecified",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Jeremy Brown"
}
],
"datePublic": "2021-11-12T00:00:00",
"descriptions": [
{
"lang": "en",
"value": "The login routine of the web console in the Zoom On-Premise Meeting Connector before version 4.6.239.20200613, Zoom On-Premise Meeting Connector MMR before version 4.6.239.20200613, Zoom On-Premise Recording Connector before version 3.8.42.20200905, Zoom On-Premise Virtual Room Connector before version 4.4.6344.20200612, and Zoom On-Premise Virtual Room Connector Load Balancer before version 2.5.5492.20200616 fails to validate that a NULL byte was sent while authenticating. This could lead to a crash of the login service."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "Improper Input Validation",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-11-11T22:59:47",
"orgId": "99b9af0d-a833-4a5d-9e2f-8b1324f35351",
"shortName": "Zoom"
},
"references": [
{
"tags": [
"x_refsource_MISC"
],
"url": "https://explore.zoom.us/en/trust/security/security-bulletin"
}
],
"source": {
"discovery": "USER"
},
"title": "Pre-auth Null pointer crash in on-premise web console",
"x_legacyV4Record": {
"CVE_data_meta": {
"AKA": "Zoom Communications Inc",
"ASSIGNER": "security@zoom.us",
"DATE_PUBLIC": "2021-11-12T17:00:00.000Z",
"ID": "CVE-2021-34418",
"STATE": "PUBLIC",
"TITLE": "Pre-auth Null pointer crash in on-premise web console"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Zoom On-Premise Meeting Connector",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_value": "4.6.239.20200613"
}
]
}
},
{
"product_name": "Zoom On-Premise Meeting Connector MMR",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_value": "4.6.239.20200613"
}
]
}
},
{
"product_name": "Zoom On-Premise Recording Connector",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_value": "3.8.42.20200905"
}
]
}
},
{
"product_name": "Zoom On-Premise Virtual Room Connector",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_value": "4.4.6344.20200612"
}
]
}
},
{
"product_name": "Zoom On-Premise Virtual Room Connector Load Balancer",
"version": {
"version_data": [
{
"version_affected": "\u003c",
"version_value": "2.5.5492.20200616"
}
]
}
}
]
},
"vendor_name": "Zoom Video Communications Inc"
}
]
}
},
"credit": [
{
"lang": "eng",
"value": "Jeremy Brown"
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "The login routine of the web console in the Zoom On-Premise Meeting Connector before version 4.6.239.20200613, Zoom On-Premise Meeting Connector MMR before version 4.6.239.20200613, Zoom On-Premise Recording Connector before version 3.8.42.20200905, Zoom On-Premise Virtual Room Connector before version 4.4.6344.20200612, and Zoom On-Premise Virtual Room Connector Load Balancer before version 2.5.5492.20200616 fails to validate that a NULL byte was sent while authenticating. This could lead to a crash of the login service."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "LOW",
"baseScore": 4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "Improper Input Validation"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://explore.zoom.us/en/trust/security/security-bulletin",
"refsource": "MISC",
"url": "https://explore.zoom.us/en/trust/security/security-bulletin"
}
]
},
"source": {
"discovery": "USER"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "99b9af0d-a833-4a5d-9e2f-8b1324f35351",
"assignerShortName": "Zoom",
"cveId": "CVE-2021-34418",
"datePublished": "2021-11-11T22:59:47.920079Z",
"dateReserved": "2021-06-09T00:00:00",
"dateUpdated": "2024-09-16T22:14:22.064Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"fkie_nvd": {
"configurations": "[{\"nodes\": [{\"operator\": \"OR\", \"negate\": false, \"cpeMatch\": [{\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:zoom:zoom_on-premise_meeting_connector_controller:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"4.6.239.20200613\", \"matchCriteriaId\": \"99BE2760-1BA7-421B-A0C1-C7EB197877FE\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:zoom:zoom_on-premise_meeting_connector_mmr:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"4.6.239.20200613\", \"matchCriteriaId\": \"1AA6CACE-15E6-4B31-82AE-77657493EB81\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:zoom:zoom_on-premise_recording_connector:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"3.8.42.20200905\", \"matchCriteriaId\": \"8A39FEDC-0FE3-48E0-A12A-82A7227C6664\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:zoom:zoom_on-premise_virtual_room_connector:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"4.4.6344.20200612\", \"matchCriteriaId\": \"8EB1B314-D1E7-4C2E-99AD-9D8A790EE45C\"}, {\"vulnerable\": true, \"criteria\": \"cpe:2.3:a:zoom:zoom_on-premise_virtual_room_connector_load_balancer:*:*:*:*:*:*:*:*\", \"versionEndExcluding\": \"2.5.5492.20200616\", \"matchCriteriaId\": \"32C9D197-4646-4C09-92D8-111FD0BE48A3\"}]}]}]",
"descriptions": "[{\"lang\": \"en\", \"value\": \"The login routine of the web console in the Zoom On-Premise Meeting Connector before version 4.6.239.20200613, Zoom On-Premise Meeting Connector MMR before version 4.6.239.20200613, Zoom On-Premise Recording Connector before version 3.8.42.20200905, Zoom On-Premise Virtual Room Connector before version 4.4.6344.20200612, and Zoom On-Premise Virtual Room Connector Load Balancer before version 2.5.5492.20200616 fails to validate that a NULL byte was sent while authenticating. This could lead to a crash of the login service.\"}, {\"lang\": \"es\", \"value\": \"La rutina de inicio de sesi\\u00f3n de la consola web en Zoom On-Premise Meeting Connector versiones anteriores a 4.6.239.20200613, Zoom On-Premise Meeting Connector MMR versiones anteriores a 4.6.239.20200613, Zoom On-Premise Recording Connector versiones anteriores a 3.8.42. 20200905, Zoom On-Premise Virtual Room Connector versiones anteriores a 4.4.6344.20200612 y Zoom On-Premise Virtual Room Connector Load Balancer versiones anteriores a 2.5.5492.20200616, no comprueban que se haya enviado un byte NULL mientras se autentican. Esto podr\\u00eda conllevar un fallo en el servicio de inicio de sesi\\u00f3n\"}]",
"id": "CVE-2021-34418",
"lastModified": "2024-11-21T06:10:21.713",
"metrics": "{\"cvssMetricV31\": [{\"source\": \"security@zoom.us\", \"type\": \"Secondary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L\", \"baseScore\": 4.0, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"LOCAL\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"LOW\"}, \"exploitabilityScore\": 2.5, \"impactScore\": 1.4}, {\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"3.1\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L\", \"baseScore\": 5.3, \"baseSeverity\": \"MEDIUM\", \"attackVector\": \"NETWORK\", \"attackComplexity\": \"LOW\", \"privilegesRequired\": \"NONE\", \"userInteraction\": \"NONE\", \"scope\": \"UNCHANGED\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"LOW\"}, \"exploitabilityScore\": 3.9, \"impactScore\": 1.4}], \"cvssMetricV2\": [{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"cvssData\": {\"version\": \"2.0\", \"vectorString\": \"AV:N/AC:L/Au:N/C:N/I:N/A:P\", \"baseScore\": 5.0, \"accessVector\": \"NETWORK\", \"accessComplexity\": \"LOW\", \"authentication\": \"NONE\", \"confidentialityImpact\": \"NONE\", \"integrityImpact\": \"NONE\", \"availabilityImpact\": \"PARTIAL\"}, \"baseSeverity\": \"MEDIUM\", \"exploitabilityScore\": 10.0, \"impactScore\": 2.9, \"acInsufInfo\": false, \"obtainAllPrivilege\": false, \"obtainUserPrivilege\": false, \"obtainOtherPrivilege\": false, \"userInteractionRequired\": false}]}",
"published": "2021-11-11T23:15:09.467",
"references": "[{\"url\": \"https://explore.zoom.us/en/trust/security/security-bulletin\", \"source\": \"security@zoom.us\", \"tags\": [\"Vendor Advisory\"]}, {\"url\": \"https://explore.zoom.us/en/trust/security/security-bulletin\", \"source\": \"af854a3a-2127-422b-91ae-364da2661108\", \"tags\": [\"Vendor Advisory\"]}]",
"sourceIdentifier": "security@zoom.us",
"vulnStatus": "Modified",
"weaknesses": "[{\"source\": \"nvd@nist.gov\", \"type\": \"Primary\", \"description\": [{\"lang\": \"en\", \"value\": \"CWE-476\"}]}]"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2021-34418\",\"sourceIdentifier\":\"security@zoom.us\",\"published\":\"2021-11-11T23:15:09.467\",\"lastModified\":\"2024-11-21T06:10:21.713\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"The login routine of the web console in the Zoom On-Premise Meeting Connector before version 4.6.239.20200613, Zoom On-Premise Meeting Connector MMR before version 4.6.239.20200613, Zoom On-Premise Recording Connector before version 3.8.42.20200905, Zoom On-Premise Virtual Room Connector before version 4.4.6344.20200612, and Zoom On-Premise Virtual Room Connector Load Balancer before version 2.5.5492.20200616 fails to validate that a NULL byte was sent while authenticating. This could lead to a crash of the login service.\"},{\"lang\":\"es\",\"value\":\"La rutina de inicio de sesi\u00f3n de la consola web en Zoom On-Premise Meeting Connector versiones anteriores a 4.6.239.20200613, Zoom On-Premise Meeting Connector MMR versiones anteriores a 4.6.239.20200613, Zoom On-Premise Recording Connector versiones anteriores a 3.8.42. 20200905, Zoom On-Premise Virtual Room Connector versiones anteriores a 4.4.6344.20200612 y Zoom On-Premise Virtual Room Connector Load Balancer versiones anteriores a 2.5.5492.20200616, no comprueban que se haya enviado un byte NULL mientras se autentican. Esto podr\u00eda conllevar un fallo en el servicio de inicio de sesi\u00f3n\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security@zoom.us\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L\",\"baseScore\":4.0,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"LOCAL\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":2.5,\"impactScore\":1.4},{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L\",\"baseScore\":5.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":3.9,\"impactScore\":1.4}],\"cvssMetricV2\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:N/C:N/I:N/A:P\",\"baseScore\":5.0,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"NONE\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":10.0,\"impactScore\":2.9,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-476\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:zoom:zoom_on-premise_meeting_connector_controller:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"4.6.239.20200613\",\"matchCriteriaId\":\"99BE2760-1BA7-421B-A0C1-C7EB197877FE\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:zoom:zoom_on-premise_meeting_connector_mmr:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"4.6.239.20200613\",\"matchCriteriaId\":\"1AA6CACE-15E6-4B31-82AE-77657493EB81\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:zoom:zoom_on-premise_recording_connector:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"3.8.42.20200905\",\"matchCriteriaId\":\"8A39FEDC-0FE3-48E0-A12A-82A7227C6664\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:zoom:zoom_on-premise_virtual_room_connector:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"4.4.6344.20200612\",\"matchCriteriaId\":\"8EB1B314-D1E7-4C2E-99AD-9D8A790EE45C\"},{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:zoom:zoom_on-premise_virtual_room_connector_load_balancer:*:*:*:*:*:*:*:*\",\"versionEndExcluding\":\"2.5.5492.20200616\",\"matchCriteriaId\":\"32C9D197-4646-4C09-92D8-111FD0BE48A3\"}]}]}],\"references\":[{\"url\":\"https://explore.zoom.us/en/trust/security/security-bulletin\",\"source\":\"security@zoom.us\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://explore.zoom.us/en/trust/security/security-bulletin\",\"source\":\"af854a3a-2127-422b-91ae-364da2661108\",\"tags\":[\"Vendor Advisory\"]}]}}"
}
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
Loading…