CVE-2021-36721 (GCVE-0-2021-36721)
Vulnerability from cvelistv5 – Published: 2021-12-14 13:59 – Updated: 2024-09-16 16:33
VLAI
EPSS
VEX
Title
Sysaid - Sysaid API User Enumeration
Summary
Sysaid API User Enumeration - Attacker sending requests to specific api path without any authorization before 21.3.60 version could get users names from the LDAP server.
Severity
4.4 (Medium)
CWE
- User Enumeration
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.gov.il/en/departments/faq/cve_advisories | third-party-advisoryx_refsource_CERT |
Impacted products
1 product
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| SysAid | SysAid API |
Affected:
Sysaid – version 20.4.74 20.4.74
|
guessed |
Date Public
2021-12-13 00:00
{
"containers": {
"adp": [
{
"providerMetadata": {
"dateUpdated": "2024-08-04T01:01:59.031Z",
"orgId": "af854a3a-2127-422b-91ae-364da2661108",
"shortName": "CVE"
},
"references": [
{
"name": "INCD CVE Advisories",
"tags": [
"third-party-advisory",
"x_refsource_CERT",
"x_transferred"
],
"url": "https://www.gov.il/en/departments/faq/cve_advisories"
}
],
"title": "CVE Program Container"
}
],
"cna": {
"affected": [
{
"product": "SysAid API",
"vendor": "SysAid",
"versions": [
{
"status": "affected",
"version": "Sysaid \u00e2\u20ac\u201c version 20.4.74 20.4.74"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "Dudu Moyal - Softix"
}
],
"datePublic": "2021-12-13T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Sysaid API User Enumeration - Attacker sending requests to specific api path without any authorization before 21.3.60 version could get users names from the LDAP server."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 4.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
"version": "3.1"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"description": "User Enumeration",
"lang": "en",
"type": "text"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2021-12-14T13:59:43.000Z",
"orgId": "a57ee1ae-c9c1-4f40-aa7b-cf10760fde3f",
"shortName": "INCD"
},
"references": [
{
"name": "INCD CVE Advisories",
"tags": [
"third-party-advisory",
"x_refsource_CERT"
],
"url": "https://www.gov.il/en/departments/faq/cve_advisories"
}
],
"solutions": [
{
"lang": "en",
"value": "Update to version 21.3.60"
}
],
"source": {
"defect": [
"ILVN-2021-0006"
],
"discovery": "EXTERNAL"
},
"title": "Sysaid - Sysaid API User Enumeration",
"x_generator": {
"engine": "Vulnogram 0.0.9"
},
"x_legacyV4Record": {
"CVE_data_meta": {
"ASSIGNER": "cna@cyber.gov.il",
"DATE_PUBLIC": "2021-12-13T08:13:00.000Z",
"ID": "CVE-2021-36721",
"STATE": "PUBLIC",
"TITLE": "Sysaid - Sysaid API User Enumeration"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "SysAid API",
"version": {
"version_data": [
{
"version_affected": "=",
"version_name": "Sysaid \u00e2\u20ac\u201c version 20.4.74",
"version_value": "20.4.74"
}
]
}
}
]
},
"vendor_name": "SysAid"
}
]
}
},
"credit": [
{
"lang": "eng",
"value": "Dudu Moyal - Softix"
}
],
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "Sysaid API User Enumeration - Attacker sending requests to specific api path without any authorization before 21.3.60 version could get users names from the LDAP server."
}
]
},
"generator": {
"engine": "Vulnogram 0.0.9"
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 4.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "User Enumeration"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "INCD CVE Advisories",
"refsource": "CERT",
"url": "https://www.gov.il/en/departments/faq/cve_advisories"
}
]
},
"solution": [
{
"lang": "en",
"value": "Update to version 21.3.60"
}
],
"source": {
"defect": [
"ILVN-2021-0006"
],
"discovery": "EXTERNAL"
}
}
}
},
"cveMetadata": {
"assignerOrgId": "a57ee1ae-c9c1-4f40-aa7b-cf10760fde3f",
"assignerShortName": "INCD",
"cveId": "CVE-2021-36721",
"datePublished": "2021-12-14T13:59:43.283Z",
"dateReserved": "2021-07-12T00:00:00.000Z",
"dateUpdated": "2024-09-16T16:33:07.338Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2021-36721",
"date": "2026-11-02",
"epss": "0.00459",
"percentile": "0.39779"
},
"nvd": {
"cve": {
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:sysaid:application_programming_interface:*:*:*:*:*:*:*:*",
"matchCriteriaId": "E462D8BC-BAD6-42AC-9604-43C0F349AC27",
"versionEndExcluding": "21.3.60",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Sysaid API User Enumeration - Attacker sending requests to specific api path without any authorization before 21.3.60 version could get users names from the LDAP server."
},
{
"lang": "es",
"value": "Enumeraci\u00f3n de usuarios de la API de Sysaid - Los atacantes que env\u00edan peticiones a una ruta api espec\u00edfica sin ninguna autorizaci\u00f3n en versiones anteriores a 21.3.60, podr\u00edan conseguir los nombres de los usuarios del servidor LDAP"
}
],
"id": "CVE-2021-36721",
"lastModified": "2024-11-21T06:13:58.653",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "MEDIUM",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.0,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
],
"cvssMetricV31": [
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 4.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 2.5,
"source": "cna@cyber.gov.il",
"type": "Secondary"
},
{
"cvssData": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4,
"source": "nvd@nist.gov",
"type": "Primary"
}
]
},
"published": "2021-12-14T14:15:09.310",
"references": [
{
"source": "cna@cyber.gov.il",
"tags": [
"Third Party Advisory"
],
"url": "https://www.gov.il/en/departments/faq/cve_advisories"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
"Third Party Advisory"
],
"url": "https://www.gov.il/en/departments/faq/cve_advisories"
}
],
"sourceIdentifier": "cna@cyber.gov.il",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "NVD-CWE-noinfo"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"current_release_date": "2026-03-27T13:48:29+00:00",
"cve": "CVE-2021-36721",
"id": "CVE-2021-36721",
"initial_release_date": "2021-12-13T00:00:00+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "Sysaid - Sysaid API User Enumeration",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2021/cve-2021-36721.json",
"version": "3"
}
}
}
Loading…
Loading…
Drag nodes to arrange them. Double-click a related vulnerability to open it, or a source to visit its link. The Physics button on the left tunes the layout and the simulation; the legend at the bottom left hides or shows nodes by kind and by sighting type.
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
Vulnerability timeline
Sightings and recorded dates, grouped by day · UTC
Loading timeline…
Loading…
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.