gsd-2021-43549
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
A remote authenticated attacker with write access to a PI Server could trick a user into interacting with a PI Web API endpoint and redirect them to a malicious website. As a result, a victim may disclose sensitive information to the attacker or be provided with false information.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-43549",
"description": "A remote authenticated attacker with write access to a PI Server could trick a user into interacting with a PI Web API endpoint and redirect them to a malicious website. As a result, a victim may disclose sensitive information to the attacker or be provided with false information.",
"id": "GSD-2021-43549"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-43549"
],
"details": "A remote authenticated attacker with write access to a PI Server could trick a user into interacting with a PI Web API endpoint and redirect them to a malicious website. As a result, a victim may disclose sensitive information to the attacker or be provided with false information.",
"id": "GSD-2021-43549",
"modified": "2023-12-13T01:23:26.448657Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "ics-cert@hq.dhs.gov",
"DATE_PUBLIC": "2021-11-09T19:12:00.000Z",
"ID": "CVE-2021-43549",
"STATE": "PUBLIC",
"TITLE": "OSIsoft PI Web API"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "PI Web API",
"version": {
"version_data": [
{
"version_affected": "\u003c=",
"version_name": "All versions",
"version_value": "2019 SPI"
}
]
}
}
]
},
"vendor_name": "OSIsoft"
}
]
}
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "A remote authenticated attacker with write access to a PI Server could trick a user into interacting with a PI Web API endpoint and redirect them to a malicious website. As a result, a victim may disclose sensitive information to the attacker or be provided with false information."
}
]
},
"generator": {
"engine": "Vulnogram 0.0.9"
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.9,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "LOW",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-79 Cross-site Scripting (XSS)"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://us-cert.cisa.gov/ics/advisories/icsa-21-313-06",
"refsource": "MISC",
"url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-313-06"
}
]
},
"source": {
"discovery": "UNKNOWN"
},
"work_around": [
{
"lang": "eng",
"value": "OSIsoft recommends upgrading to PI Web API 2021. Additional information can be found in the OSIsoft PI Web API security bulletin (registration required).\n\nOSIsoft recommends applying the following workaround in PI Web API to help reduce the risk:\n\nRemove the OSIsoft.REST.Documentation.dll from the PI Web API installation directory.\n\nThe PI Web API installation directory is available at this registry entry:\n\\\\HKLM\\SOFTWARE\\PISystem\\WebAPI\\InstallationDirectory\nThe default PI Web API installation directory is:\nC:\\Program Files\\PIPC\\WebAPI\nRemoving this file will cause built-in documentation to no longer be available. Navigating to the PI Web API endpoint with a browser will result in an error; however, the PI Web API will continue to function as a REST API\nDocumentation can be found at the OSIsoft website. Alternately, users are encouraged to limit access to PI Web API built-in documentation to dedicated development environments\nOSIsoft recommends users employ the following defense measures to lower the impact of exploitation for PI Web API:\n\nAvoid adding authentication type \u201cAnonymous\u201d in PI Web API configuration settings to limit exposure to authenticated users only,\nConsider using a web application firewall to block html responses from PI Web API servers,\nAudit the AF hierarchy to ensure there are no unauthorized databases, elements, or attributes,\nFor Kerberos authentication configurations, use Group Policy to deny network authentication to PI Server Administrator accounts on the PI Web API server.\nSee the OSIsoft customer portal knowledge article for additional details and associated security updates (registration required)."
}
]
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:osisoft:pi_web_api:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndIncluding": "2019",
"vulnerable": true
}
],
"operator": "OR"
}
]
},
"cve": {
"CVE_data_meta": {
"ASSIGNER": "ics-cert@hq.dhs.gov",
"ID": "CVE-2021-43549"
},
"data_format": "MITRE",
"data_type": "CVE",
"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "en",
"value": "A remote authenticated attacker with write access to a PI Server could trick a user into interacting with a PI Web API endpoint and redirect them to a malicious website. As a result, a victim may disclose sensitive information to the attacker or be provided with false information."
}
]
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "en",
"value": "CWE-79"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://us-cert.cisa.gov/ics/advisories/icsa-21-313-06",
"refsource": "MISC",
"tags": [
"Third Party Advisory",
"US Government Resource"
],
"url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-313-06"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "MEDIUM",
"accessVector": "NETWORK",
"authentication": "SINGLE",
"availabilityImpact": "NONE",
"baseScore": 3.5,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:S/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 6.8,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "LOW",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 4.8,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "HIGH",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 1.7,
"impactScore": 2.7
}
},
"lastModifiedDate": "2021-11-23T17:09Z",
"publishedDate": "2021-11-18T15:15Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- 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.