gsd-2021-42756
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Multiple stack-based buffer overflow vulnerabilities [CWE-121] in the proxy daemon of FortiWeb 5.x all versions, 6.0.7 and below, 6.1.2 and below, 6.2.6 and below, 6.3.16 and below, 6.4 all versions may allow an unauthenticated remote attacker to achieve arbitrary code execution via specifically crafted HTTP requests.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-42756",
"id": "GSD-2021-42756"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-42756"
],
"details": "Multiple stack-based buffer overflow vulnerabilities [CWE-121] in the proxy daemon of FortiWeb 5.x all versions, 6.0.7 and below, 6.1.2 and below, 6.2.6 and below, 6.3.16 and below, 6.4 all versions may allow an unauthenticated remote attacker to achieve arbitrary code execution via specifically crafted HTTP requests.",
"id": "GSD-2021-42756",
"modified": "2023-12-13T01:23:06.548242Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
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"CVE_data_meta": {
"ASSIGNER": "psirt@fortinet.com",
"ID": "CVE-2021-42756",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "FortiWeb",
"version": {
"version_data": [
{
"version_affected": "\u003c=",
"version_name": "6.4.0",
"version_value": "6.4.1"
},
{
"version_affected": "\u003c=",
"version_name": "6.3.0",
"version_value": "6.3.16"
},
{
"version_affected": "\u003c=",
"version_name": "6.2.0",
"version_value": "6.2.6"
},
{
"version_affected": "\u003c=",
"version_name": "6.1.0",
"version_value": "6.1.2"
},
{
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"version_value": "6.0.7"
},
{
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"version_name": "5.9.0",
"version_value": "5.9.1"
},
{
"version_affected": "\u003c=",
"version_name": "5.8.5",
"version_value": "5.8.7"
},
{
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"version_name": "5.8.0",
"version_value": "5.8.3"
},
{
"version_affected": "\u003c=",
"version_name": "5.7.0",
"version_value": "5.7.3"
},
{
"version_affected": "\u003c=",
"version_name": "5.6.0",
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}
]
},
"impact": {
"cvss": [
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"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.3,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:P/RL:U/RC:C",
"version": "3.1"
}
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{
"description": [
{
"cweId": "CWE-121",
"lang": "eng",
"value": "Execute unauthorized code or commands"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://fortiguard.com/psirt/FG-IR-21-186",
"refsource": "MISC",
"url": "https://fortiguard.com/psirt/FG-IR-21-186"
}
]
},
"solution": [
{
"lang": "en",
"value": "Upgrade to FortiWeb 7.0.0 or above,\r\nUpgrade to FortiWeb 6.3.17 or above,\r\nUpgrade to FortiWeb 6.2.7 or above.\r\nUpgrade to FortiWeb 6.1.3 or above.\r\nUpgrade to FortiWeb 6.0.8 or above."
}
]
},
"nvd.nist.gov": {
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"nodes": [
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{
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"versionEndExcluding": "6.1.3",
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{
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"versionEndExcluding": "6.0.8",
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"operator": "OR"
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"ID": "CVE-2021-42756"
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"description": {
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"value": "CWE-787"
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},
"references": {
"reference_data": [
{
"name": "https://fortiguard.com/psirt/FG-IR-21-186",
"refsource": "MISC",
"tags": [
"Vendor Advisory"
],
"url": "https://fortiguard.com/psirt/FG-IR-21-186"
}
]
}
},
"impact": {
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 9.8,
"baseSeverity": "CRITICAL",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 5.9
}
},
"lastModifiedDate": "2023-02-24T19:58Z",
"publishedDate": "2023-02-16T19:15Z"
}
}
}
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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.