gsd-2021-29157
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
Dovecot before 2.3.15 allows ../ Path Traversal. An attacker with access to the local filesystem can trick OAuth2 authentication into using an HS256 validation key from an attacker-controlled location. This occurs during use of local JWT validation with the posix fs driver.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-29157",
"description": "Dovecot before 2.3.15 allows ../ Path Traversal. An attacker with access to the local filesystem can trick OAuth2 authentication into using an HS256 validation key from an attacker-controlled location. This occurs during use of local JWT validation with the posix fs driver.",
"id": "GSD-2021-29157",
"references": [
"https://www.suse.com/security/cve/CVE-2021-29157.html",
"https://ubuntu.com/security/CVE-2021-29157",
"https://advisories.mageia.org/CVE-2021-29157.html",
"https://security.archlinux.org/CVE-2021-29157"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-29157"
],
"details": "Dovecot before 2.3.15 allows ../ Path Traversal. An attacker with access to the local filesystem can trick OAuth2 authentication into using an HS256 validation key from an attacker-controlled location. This occurs during use of local JWT validation with the posix fs driver.",
"id": "GSD-2021-29157",
"modified": "2023-12-13T01:23:36.825474Z",
"schema_version": "1.4.0"
}
},
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"ID": "CVE-2021-29157",
"STATE": "PUBLIC"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "n/a",
"version": {
"version_data": [
{
"version_value": "n/a"
}
]
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]
},
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}
]
}
},
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"data_type": "CVE",
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"value": "Dovecot before 2.3.15 allows ../ Path Traversal. An attacker with access to the local filesystem can trick OAuth2 authentication into using an HS256 validation key from an attacker-controlled location. This occurs during use of local JWT validation with the posix fs driver."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "HIGH",
"attackVector": "LOCAL",
"availabilityImpact": "NONE",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "LOW",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AC:H/AV:L/A:N/C:H/I:H/PR:L/S:C/UI:N",
"version": "3.1"
}
},
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}
]
}
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},
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{
"name": "https://dovecot.org/security",
"refsource": "MISC",
"url": "https://dovecot.org/security"
},
{
"name": "https://www.openwall.com/lists/oss-security/2021/06/28/1",
"refsource": "CONFIRM",
"url": "https://www.openwall.com/lists/oss-security/2021/06/28/1"
},
{
"name": "FEDORA-2021-208340a217",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/JB2VTJ3G2ILYWH5Y2FTY2PUHT2MD6VMI/"
},
{
"name": "FEDORA-2021-891c1ab1ac",
"refsource": "FEDORA",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TK424DWFO2TKJYXZ2H3XL633TYJL4GQN/"
},
{
"name": "GLSA-202107-41",
"refsource": "GENTOO",
"url": "https://security.gentoo.org/glsa/202107-41"
}
]
}
},
"nvd.nist.gov": {
"configurations": {
"CVE_data_version": "4.0",
"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:dovecot:dovecot:*:*:*:*:*:*:*:*",
"cpe_name": [],
"versionEndExcluding": "2.3.14.1",
"versionStartIncluding": "2.3.11",
"vulnerable": true
}
],
"operator": "OR"
},
{
"children": [],
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{
"cpe23Uri": "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
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{
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"cpe_name": [],
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"ID": "CVE-2021-29157"
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"description": {
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"value": "Dovecot before 2.3.15 allows ../ Path Traversal. An attacker with access to the local filesystem can trick OAuth2 authentication into using an HS256 validation key from an attacker-controlled location. This occurs during use of local JWT validation with the posix fs driver."
}
]
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"problemtype": {
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"value": "CWE-22"
}
]
}
]
},
"references": {
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{
"name": "https://dovecot.org/security",
"refsource": "MISC",
"tags": [
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],
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},
{
"name": "https://www.openwall.com/lists/oss-security/2021/06/28/1",
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"url": "https://www.openwall.com/lists/oss-security/2021/06/28/1"
},
{
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},
{
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},
{
"name": "GLSA-202107-41",
"refsource": "GENTOO",
"tags": [
"Third Party Advisory"
],
"url": "https://security.gentoo.org/glsa/202107-41"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "LOCAL",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 2.1,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:L/AC:L/Au:N/C:P/I:N/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": 5.5,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "HIGH",
"integrityImpact": "NONE",
"privilegesRequired": "LOW",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 1.8,
"impactScore": 3.6
}
},
"lastModifiedDate": "2021-09-20T18:52Z",
"publishedDate": "2021-06-28T12:15Z"
}
}
}
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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.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- 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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