gsd-2021-41106
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
JWT is a library to work with JSON Web Token and JSON Web Signature. Prior to versions 3.4.6, 4.0.4, and 4.1.5, users of HMAC-based algorithms (HS256, HS384, and HS512) combined with `Lcobucci\JWT\Signer\Key\LocalFileReference` as key are having their tokens issued/validated using the file path as hashing key - instead of the contents. The HMAC hashing functions take any string as input and, since users can issue and validate tokens, users are lead to believe that everything works properly. Versions 3.4.6, 4.0.4, and 4.1.5 have been patched to always load the file contents, deprecated the `Lcobucci\JWT\Signer\Key\LocalFileReference`, and suggest `Lcobucci\JWT\Signer\Key\InMemory` as the alternative. As a workaround, use `Lcobucci\JWT\Signer\Key\InMemory` instead of `Lcobucci\JWT\Signer\Key\LocalFileReference` to create the instances of one's keys.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-41106",
"description": "JWT is a library to work with JSON Web Token and JSON Web Signature. Prior to versions 3.4.6, 4.0.4, and 4.1.5, users of HMAC-based algorithms (HS256, HS384, and HS512) combined with `Lcobucci\\JWT\\Signer\\Key\\LocalFileReference` as key are having their tokens issued/validated using the file path as hashing key - instead of the contents. The HMAC hashing functions take any string as input and, since users can issue and validate tokens, users are lead to believe that everything works properly. Versions 3.4.6, 4.0.4, and 4.1.5 have been patched to always load the file contents, deprecated the `Lcobucci\\JWT\\Signer\\Key\\LocalFileReference`, and suggest `Lcobucci\\JWT\\Signer\\Key\\InMemory` as the alternative. As a workaround, use `Lcobucci\\JWT\\Signer\\Key\\InMemory` instead of `Lcobucci\\JWT\\Signer\\Key\\LocalFileReference` to create the instances of one\u0027s keys.",
"id": "GSD-2021-41106"
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-41106"
],
"details": "JWT is a library to work with JSON Web Token and JSON Web Signature. Prior to versions 3.4.6, 4.0.4, and 4.1.5, users of HMAC-based algorithms (HS256, HS384, and HS512) combined with `Lcobucci\\JWT\\Signer\\Key\\LocalFileReference` as key are having their tokens issued/validated using the file path as hashing key - instead of the contents. The HMAC hashing functions take any string as input and, since users can issue and validate tokens, users are lead to believe that everything works properly. Versions 3.4.6, 4.0.4, and 4.1.5 have been patched to always load the file contents, deprecated the `Lcobucci\\JWT\\Signer\\Key\\LocalFileReference`, and suggest `Lcobucci\\JWT\\Signer\\Key\\InMemory` as the alternative. As a workaround, use `Lcobucci\\JWT\\Signer\\Key\\InMemory` instead of `Lcobucci\\JWT\\Signer\\Key\\LocalFileReference` to create the instances of one\u0027s keys.",
"id": "GSD-2021-41106",
"modified": "2023-12-13T01:23:27.100189Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
"cve.org": {
"CVE_data_meta": {
"ASSIGNER": "security-advisories@github.com",
"ID": "CVE-2021-41106",
"STATE": "PUBLIC",
"TITLE": "File reference keys leads to incorrect hashes on HMAC algorithms"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "jwt",
"version": {
"version_data": [
{
"version_value": "\u003e= 3.4.0, \u003c 3.4.6"
},
{
"version_value": "\u003e= 4.0.0, \u003c 4.0.4"
},
{
"version_value": "\u003e= 4.1.0, \u003c 4.1.5"
}
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}
}
]
},
"vendor_name": "lcobucci"
}
]
}
},
"data_format": "MITRE",
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"data_version": "4.0",
"description": {
"description_data": [
{
"lang": "eng",
"value": "JWT is a library to work with JSON Web Token and JSON Web Signature. Prior to versions 3.4.6, 4.0.4, and 4.1.5, users of HMAC-based algorithms (HS256, HS384, and HS512) combined with `Lcobucci\\JWT\\Signer\\Key\\LocalFileReference` as key are having their tokens issued/validated using the file path as hashing key - instead of the contents. The HMAC hashing functions take any string as input and, since users can issue and validate tokens, users are lead to believe that everything works properly. Versions 3.4.6, 4.0.4, and 4.1.5 have been patched to always load the file contents, deprecated the `Lcobucci\\JWT\\Signer\\Key\\LocalFileReference`, and suggest `Lcobucci\\JWT\\Signer\\Key\\InMemory` as the alternative. As a workaround, use `Lcobucci\\JWT\\Signer\\Key\\InMemory` instead of `Lcobucci\\JWT\\Signer\\Key\\LocalFileReference` to create the instances of one\u0027s keys."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 4.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N",
"version": "3.1"
}
},
"problemtype": {
"problemtype_data": [
{
"description": [
{
"lang": "eng",
"value": "CWE-345: Insufficient Verification of Data Authenticity"
}
]
}
]
},
"references": {
"reference_data": [
{
"name": "https://github.com/lcobucci/jwt/security/advisories/GHSA-7322-jrq4-x5hf",
"refsource": "CONFIRM",
"url": "https://github.com/lcobucci/jwt/security/advisories/GHSA-7322-jrq4-x5hf"
},
{
"name": "https://github.com/lcobucci/jwt/commit/8175de5b841fbe3fd97d2d49b3fc15c4ecb39a73",
"refsource": "MISC",
"url": "https://github.com/lcobucci/jwt/commit/8175de5b841fbe3fd97d2d49b3fc15c4ecb39a73"
},
{
"name": "https://github.com/lcobucci/jwt/commit/c45bb8b961a8e742d8f6b88ef5ff1bd5cca5d01c",
"refsource": "MISC",
"url": "https://github.com/lcobucci/jwt/commit/c45bb8b961a8e742d8f6b88ef5ff1bd5cca5d01c"
}
]
},
"source": {
"advisory": "GHSA-7322-jrq4-x5hf",
"discovery": "UNKNOWN"
}
},
"gitlab.com": {
"advisories": [
{
"affected_range": "\u003e=3.4.0,\u003c3.4.6||\u003e=4.0.0,\u003c4.0.4||\u003e=4.1.0,\u003c4.1.5",
"affected_versions": "All versions starting from 3.4.0 before 3.4.6, all versions starting from 4.0.0 before 4.0.4, all versions starting from 4.1.0 before 4.1.5",
"cvss_v2": "AV:L/AC:L/Au:N/C:N/I:P/A:N",
"cvss_v3": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
"cwe_ids": [
"CWE-1035",
"CWE-345",
"CWE-937"
],
"date": "2021-10-07",
"description": "JWT is a library to work with JSON Web Token and JSON Web Signature.",
"fixed_versions": [],
"identifier": "CVE-2021-41106",
"identifiers": [
"CVE-2021-41106",
"GHSA-7322-jrq4-x5hf"
],
"not_impacted": "",
"package_slug": "packagist/emarref/jwt",
"pubdate": "2021-09-28",
"solution": "Unfortunately, there is no solution available yet.",
"title": "Insufficient Verification of Data Authenticity",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2021-41106"
],
"uuid": "68131f70-688e-47aa-bbaf-e70796e5c3b6"
},
{
"affected_range": "\u003e=3.4.0,\u003c3.4.6||\u003e=4.0.0,\u003c4.0.4||\u003e=4.1.0,\u003c4.1.5",
"affected_versions": "All versions starting from 3.4.0 before 3.4.6, all versions starting from 4.0.0 before 4.0.4, all versions starting from 4.1.0 before 4.1.5",
"cvss_v2": "AV:L/AC:L/Au:N/C:N/I:P/A:N",
"cvss_v3": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
"cwe_ids": [
"CWE-1035",
"CWE-345",
"CWE-937"
],
"date": "2021-10-07",
"description": "The HMAC hashing functions take any string as input and, since users can issue and validate tokens, users are lead to believe that everything works properly.",
"fixed_versions": [
"3.4.6",
"4.0.4",
"4.1.5"
],
"identifier": "CVE-2021-41106",
"identifiers": [
"CVE-2021-41106",
"GHSA-7322-jrq4-x5hf"
],
"not_impacted": "All versions before 3.4.0, all versions starting from 3.4.6 before 4.0.0, all versions starting from 4.0.4 before 4.1.0, all versions starting from 4.1.5",
"package_slug": "packagist/lcobucci/jwt",
"pubdate": "2021-09-28",
"solution": "Upgrade to versions 3.4.6, 4.0.4, 4.1.5 or above.",
"title": "Insufficient Verification of Data Authenticity",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2021-41106"
],
"uuid": "a69e1429-c0a4-440b-8fc1-060ae8d97ef3"
}
]
},
"nvd.nist.gov": {
"configurations": {
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"nodes": [
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"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:jwt_project:jwt:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "3.4.6",
"versionStartIncluding": "3.4.0",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:jwt_project:jwt:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "4.0.4",
"versionStartIncluding": "4.0.0",
"vulnerable": true
},
{
"cpe23Uri": "cpe:2.3:a:jwt_project:jwt:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "4.1.5",
"versionStartIncluding": "4.1.0",
"vulnerable": true
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"operator": "OR"
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"cve": {
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"description": {
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"value": "JWT is a library to work with JSON Web Token and JSON Web Signature. Prior to versions 3.4.6, 4.0.4, and 4.1.5, users of HMAC-based algorithms (HS256, HS384, and HS512) combined with `Lcobucci\\JWT\\Signer\\Key\\LocalFileReference` as key are having their tokens issued/validated using the file path as hashing key - instead of the contents. The HMAC hashing functions take any string as input and, since users can issue and validate tokens, users are lead to believe that everything works properly. Versions 3.4.6, 4.0.4, and 4.1.5 have been patched to always load the file contents, deprecated the `Lcobucci\\JWT\\Signer\\Key\\LocalFileReference`, and suggest `Lcobucci\\JWT\\Signer\\Key\\InMemory` as the alternative. As a workaround, use `Lcobucci\\JWT\\Signer\\Key\\InMemory` instead of `Lcobucci\\JWT\\Signer\\Key\\LocalFileReference` to create the instances of one\u0027s keys."
}
]
},
"problemtype": {
"problemtype_data": [
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"description": [
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"lang": "en",
"value": "CWE-345"
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"references": {
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"name": "https://github.com/lcobucci/jwt/security/advisories/GHSA-7322-jrq4-x5hf",
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"Patch",
"Third Party Advisory"
],
"url": "https://github.com/lcobucci/jwt/security/advisories/GHSA-7322-jrq4-x5hf"
},
{
"name": "https://github.com/lcobucci/jwt/commit/c45bb8b961a8e742d8f6b88ef5ff1bd5cca5d01c",
"refsource": "MISC",
"tags": [
"Patch",
"Third Party Advisory"
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"url": "https://github.com/lcobucci/jwt/commit/c45bb8b961a8e742d8f6b88ef5ff1bd5cca5d01c"
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{
"name": "https://github.com/lcobucci/jwt/commit/8175de5b841fbe3fd97d2d49b3fc15c4ecb39a73",
"refsource": "MISC",
"tags": [
"Patch",
"Third Party Advisory"
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"url": "https://github.com/lcobucci/jwt/commit/8175de5b841fbe3fd97d2d49b3fc15c4ecb39a73"
}
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},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 2.1,
"confidentialityImpact": "NONE",
"integrityImpact": "PARTIAL",
"vectorString": "AV:L/AC:L/Au:N/C:N/I:P/A:N",
"version": "2.0"
},
"exploitabilityScore": 3.9,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "LOW",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"baseScore": 3.3,
"baseSeverity": "LOW",
"confidentialityImpact": "NONE",
"integrityImpact": "LOW",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 1.4
}
},
"lastModifiedDate": "2021-10-07T16:22Z",
"publishedDate": "2021-09-28T21:15Z"
}
}
}
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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.
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