GSD-2021-21265
Vulnerability from gsd - Updated: 2023-12-13 01:23Details
October is a free, open-source, self-hosted CMS platform based on the Laravel PHP Framework. In October before version 1.1.2, when running on poorly configured servers (i.e. the server routes any request, regardless of the HOST header to an October CMS instance) the potential exists for Host Header Poisoning attacks to succeed. This has been addressed in version 1.1.2 by adding a feature to allow a set of trusted hosts to be specified in the application. As a workaround one may set the configuration setting cms.linkPolicy to force.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-21265",
"description": "October is a free, open-source, self-hosted CMS platform based on the Laravel PHP Framework. In October before version 1.1.2, when running on poorly configured servers (i.e. the server routes any request, regardless of the HOST header to an October CMS instance) the potential exists for Host Header Poisoning attacks to succeed. This has been addressed in version 1.1.2 by adding a feature to allow a set of trusted hosts to be specified in the application. As a workaround one may set the configuration setting cms.linkPolicy to force.",
"id": "GSD-2021-21265"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
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"details": "October is a free, open-source, self-hosted CMS platform based on the Laravel PHP Framework. In October before version 1.1.2, when running on poorly configured servers (i.e. the server routes any request, regardless of the HOST header to an October CMS instance) the potential exists for Host Header Poisoning attacks to succeed. This has been addressed in version 1.1.2 by adding a feature to allow a set of trusted hosts to be specified in the application. As a workaround one may set the configuration setting cms.linkPolicy to force.",
"id": "GSD-2021-21265",
"modified": "2023-12-13T01:23:10.868518Z",
"schema_version": "1.4.0"
}
},
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}
]
},
"impact": {
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"attackVector": "NETWORK",
"availabilityImpact": "NONE",
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"confidentialityImpact": "NONE",
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"privilegesRequired": "NONE",
"scope": "CHANGED",
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"description": [
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"lang": "eng",
"value": "CWE-644: Improper Neutralization of HTTP Headers for Scripting Syntax"
}
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}
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},
"references": {
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"name": "https://github.com/octobercms/october/security/advisories/GHSA-xhfx-hgmf-v6vp",
"refsource": "CONFIRM",
"url": "https://github.com/octobercms/october/security/advisories/GHSA-xhfx-hgmf-v6vp"
},
{
"name": "https://github.com/octobercms/library/commit/f86fcbcd066d6f8b939e8fe897409d152b11c3c6",
"refsource": "MISC",
"url": "https://github.com/octobercms/library/commit/f86fcbcd066d6f8b939e8fe897409d152b11c3c6"
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"source": {
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"discovery": "UNKNOWN"
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"gitlab.com": {
"advisories": [
{
"affected_range": "\u003c1.1.2",
"affected_versions": "All versions before 1.1.2",
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"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"cwe_ids": [
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"CWE-937"
],
"date": "2021-03-11",
"description": "October is a free, open-source, self-hosted CMS platform based on the Laravel PHP Framework. In October before version 1.1.2, when running on poorly configured servers (i.e. the server routes any request, regardless of the HOST header to an October CMS instance) the potential exists for Host Header Poisoning attacks to succeed. This has been addressed in version 1.1.2 by adding a feature to allow a set of trusted hosts to be specified in the application. As a workaround one may set the configuration setting cms.linkPolicy to force.",
"fixed_versions": [
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],
"identifier": "CVE-2021-21265",
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"CVE-2021-21265"
],
"not_impacted": "All versions starting from 1.1.2",
"package_slug": "packagist/october/backend",
"pubdate": "2021-03-10",
"solution": "Upgrade to version 1.1.2 or above.",
"title": "Improper Neutralization of HTTP Headers for Scripting Syntax",
"urls": [
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"https://nvd.nist.gov/vuln/detail/CVE-2021-21265",
"https://github.com/octobercms/library/commit/f86fcbcd066d6f8b939e8fe897409d152b11c3c6",
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"uuid": "330d2402-8f02-4aae-9e1f-6356ea003ee0"
},
{
"affected_range": "\u003c1.1.2",
"affected_versions": "All versions before 1.1.2",
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"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"cwe_ids": [
"CWE-1035",
"CWE-644",
"CWE-937"
],
"date": "2021-03-18",
"description": "October is a free, open-source, self-hosted CMS platform based on the Laravel PHP Framework. In October, when running on poorly configured servers (i.e., the server routes any request, regardless of the HOST header to an October CMS instance) the potential exists for Host Header Poisoning attacks to succeed. This has been addressed by adding a feature to allow a set of trusted hosts to be specified in the application. As a workaround one may set the configuration setting `cms.linkPolicy` to force.",
"fixed_versions": [
"1.1.2"
],
"identifier": "CVE-2021-21265",
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"GHSA-xhfx-hgmf-v6vp"
],
"not_impacted": "All versions starting from 1.1.2",
"package_slug": "packagist/october/october",
"pubdate": "2021-03-10",
"solution": "Upgrade to version 1.1.2 or above.",
"title": "Improper Neutralization of HTTP Headers for Scripting Syntax",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2021-21265"
],
"uuid": "fa257cc5-a8c9-467f-8fc5-ae7cd1a32b4d"
}
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"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 4.3,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
"version": "2.0"
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"exploitabilityScore": 8.6,
"impactScore": 2.9,
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"severity": "MEDIUM",
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"attackVector": "NETWORK",
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"baseScore": 7.5,
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"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
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"exploitabilityScore": 3.9,
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}
},
"lastModifiedDate": "2021-03-18T16:48Z",
"publishedDate": "2021-03-10T22:15Z"
}
}
}
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Sightings
| Author | Source | Type | Date |
|---|
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.
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