fkie_cve-2021-4406
Vulnerability from fkie_nvd
Published
2023-07-10 16:15
Modified
2025-09-24 14:15
Severity ?
9.1 (Critical) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Summary
An authenticated attacker is able to create alerts that trigger a stored XSS attack.
POC
* go to the alert manager
* open the ITSM tab
* add a webhook with the URL/service token value
' -h && id | tee /tmp/ttttttddddssss #' (whitespaces are tab characters)
* click add
* click apply
* create a test alert
* The test alert will run the command
“id | tee /tmp/ttttttddddssss” as root.
* after the test alert inspect
/tmp/ttttttddddssss it'll contain the ids of the root user.
References
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| osnexus | quantastor | * |
{
"configurations": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:osnexus:quantastor:*:*:*:*:*:*:*:*",
"matchCriteriaId": "5E101217-36C7-4C28-8C61-7744481D2D0E",
"versionEndExcluding": "6.0.0.355",
"vulnerable": true
}
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"negate": false,
"operator": "OR"
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],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"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\u0027\t-h\t\u0026\u0026\tid\t|\ttee\t/tmp/ttttttddddssss\t#\u0027 (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\u201cid\t|\ttee\t/tmp/ttttttddddssss\u201d as root.\n\n\n * after the test alert inspect \n\n/tmp/ttttttddddssss it\u0027ll contain the ids of the root user."
}
],
"id": "CVE-2021-4406",
"lastModified": "2025-09-24T14:15:45.487",
"metrics": {
"cvssMetricV31": [
{
"cvssData": {
"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"
},
"exploitabilityScore": 2.3,
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"source": "csirt@divd.nl",
"type": "Secondary"
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{
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"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.2,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
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"source": "nvd@nist.gov",
"type": "Primary"
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"published": "2023-07-10T16:15:47.747",
"references": [
{
"source": "csirt@divd.nl",
"tags": [
"Third Party Advisory"
],
"url": "https://csirt.divd.nl/CVE-2021-4406"
},
{
"source": "csirt@divd.nl",
"url": "https://csirt.divd.nl/DIVD-2021-00020/"
},
{
"source": "csirt@divd.nl",
"tags": [
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],
"url": "https://www.osnexus.com/products/software-defined-storage"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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"url": "https://csirt.divd.nl/CVE-2021-4406"
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"url": "https://www.divd.nl/DIVD-2021-00020"
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{
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"tags": [
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"sourceIdentifier": "csirt@divd.nl",
"vulnStatus": "Modified",
"weaknesses": [
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"description": [
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"value": "CWE-77"
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"description": [
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"lang": "en",
"value": "CWE-77"
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],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
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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.
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