{ "dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": { "cveId": "CVE-2021-4406", "assignerOrgId": "b87402ff-ae37-4194-9dae-31abdbd6f217", "state": "PUBLISHED", "assignerShortName": "DIVD", "dateReserved": "2023-07-05T15:24:56.556Z", "datePublished": "2023-07-10T06:29:48.698Z", "dateUpdated": "2025-09-24T15:46:35.837Z" }, "containers": { "cna": { "affected": [ { "defaultStatus": "unknown", "product": "QuantaStor", "vendor": "OSNEXUS", "versions": [ { "lessThanOrEqual": "6.0.0.355", "status": "affected", "version": "0", "versionType": "semver" } ] } ], "credits": [ { "lang": "en", "type": "finder", "value": "Wietse Boonstra (DIVD)" }, { "lang": "en", "type": "analyst", "value": "Frank Breedijk (DIVD)" }, { "lang": "en", "type": "analyst", "value": "Victor Pasman (DIVD)" }, { "lang": "en", "type": "analyst", "value": "Victor Gevers (DIVD)" }, { "lang": "en", "type": "analyst", "value": "Max van der Horst (DIVD)" }, { "lang": "en", "type": "analyst", "value": "Célistine Oosting (DIVD)" } ], "descriptions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "An authenticated attacker is able to create alerts that trigger a stored XSS attack.

POC


  1. go to the alert manager

  2. open the ITSM tab
  3. add a webhook with the URL/service token value

    '\t-h\t&&\tid\t|\ttee\t/tmp/ttttttddddssss\t#'

    (whitespaces are tab characters)

  4. click add

  5. click apply

  6. create a test alert

  7. The test alert will run the command

    “id\t|\ttee\t/tmp/ttttttddddssss”

    as root.

  8. after the test alert inspect

    /tmp/ttttttddddssss

    it'll contain the ids of the root user.


" } ], "value": "An authenticated attacker is able to create alerts that trigger a stored XSS attack.\n\nPOC\n\n\n * go to the alert manager\n\n\n * open the ITSM tab\n * add a webhook with the URL/service token value \n\n'\t-h\t&&\tid\t|\ttee\t/tmp/ttttttddddssss\t#' (whitespaces are tab characters)\n\n\n * click add\n\n\n * click apply\n\n\n * create a test alert\n\n\n * The test alert will run the command \n\n“id\t|\ttee\t/tmp/ttttttddddssss” as root.\n\n\n * after the test alert inspect \n\n/tmp/ttttttddddssss it'll contain the ids of the root user." } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "HIGH", "baseScore": 9.1, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "HIGH", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H", "version": "3.1" }, "format": "CVSS", "scenarios": [ { "lang": "en", "value": "GENERAL" } ] } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-77", "description": "CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection')", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "orgId": "b87402ff-ae37-4194-9dae-31abdbd6f217", "shortName": "DIVD", "dateUpdated": "2025-09-24T15:46:35.837Z" }, "references": [ { "tags": [ "third-party-advisory" ], "url": "https://csirt.divd.nl/DIVD-2021-00020/" }, { "tags": [ "product" ], "url": "https://www.osnexus.com/products/software-defined-storage" }, { "tags": [ "third-party-advisory", "exploit", "technical-description" ], "url": "https://csirt.divd.nl/CVE-2021-4406" } ], "solutions": [ { "lang": "en", "supportingMedia": [ { "base64": false, "type": "text/html", "value": "Upgrade to the latest version of OSNEXUS QuantaStor and hope it is fixed" } ], "value": "Upgrade to the latest version of OSNEXUS QuantaStor and hope it is fixed" } ], "source": { "discovery": "INTERNAL" }, "title": "Authenticated Remote COmmand Execution as root in OSNEXUS QuantaStor version 6.0.0.355 and others", "x_generator": { "engine": "Vulnogram 0.1.0-dev" } }, "adp": [ { "providerMetadata": { "orgId": "af854a3a-2127-422b-91ae-364da2661108", "shortName": "CVE", "dateUpdated": "2024-08-03T17:23:10.705Z" }, "title": "CVE Program Container", "references": [ { "url": "https://www.divd.nl/DIVD-2021-00020", "tags": [ "third-party-advisory", "x_transferred" ] }, { "url": "https://www.osnexus.com/products/software-defined-storage", "tags": [ "product", "x_transferred" ] }, { "url": "https://csirt.divd.nl/CVE-2021-4406", "tags": [ "third-party-advisory", "x_transferred" ] } ] }, { "references": [ { "url": "https://csirt.divd.nl/cves/CVE-2021-4406/", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2025-09-24T13:40:31.901830Z", "id": "CVE-2021-4406", "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2025-09-24T13:40:46.757Z" } } ] } }