GSD-2021-21424
Vulnerability from gsd - Updated: 2023-12-13 01:23Details
Symfony is a PHP framework for web and console applications and a set of reusable PHP components. The ability to enumerate users was possible without relevant permissions due to different handling depending on whether the user existed or not when attempting to use the switch users functionality. We now ensure that 403s are returned whether the user exists or not if a user cannot switch to a user or if the user does not exist. The patch for this issue is available for branch 3.4.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-21424",
"description": "Symfony is a PHP framework for web and console applications and a set of reusable PHP components. The ability to enumerate users was possible without relevant permissions due to different handling depending on whether the user existed or not when attempting to use the switch users functionality. We now ensure that 403s are returned whether the user exists or not if a user cannot switch to a user or if the user does not exist. The patch for this issue is available for branch 3.4.",
"id": "GSD-2021-21424",
"references": [
"https://ubuntu.com/security/CVE-2021-21424"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
"CVE-2021-21424"
],
"details": "Symfony is a PHP framework for web and console applications and a set of reusable PHP components. The ability to enumerate users was possible without relevant permissions due to different handling depending on whether the user existed or not when attempting to use the switch users functionality. We now ensure that 403s are returned whether the user exists or not if a user cannot switch to a user or if the user does not exist. The patch for this issue is available for branch 3.4.",
"id": "GSD-2021-21424",
"modified": "2023-12-13T01:23:10.834877Z",
"schema_version": "1.4.0"
}
},
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"TITLE": "Prevent user enumeration using Guard or the new Authenticator-based Security"
},
"affects": {
"vendor": {
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{
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{
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}
]
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
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{
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{
"name": "[debian-lts-announce] 20230711 [SECURITY] [DLA 3493-1] symfony security update",
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"url": "https://lists.debian.org/debian-lts-announce/2023/07/msg00014.html"
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"source": {
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"discovery": "UNKNOWN"
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"pubdate": "2021-05-13",
"solution": "Upgrade to versions 4.4.24, 5.2.8 or above.",
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{
"name": "https://github.com/symfony/symfony/commit/2a581d22cc621b33d5464ed65c4bc2057f72f011",
"refsource": "MISC",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/symfony/symfony/commit/2a581d22cc621b33d5464ed65c4bc2057f72f011"
},
{
"name": "https://github.com/symfony/symfony/security/advisories/GHSA-5pv8-ppvj-4h68",
"refsource": "CONFIRM",
"tags": [
"Patch",
"Third Party Advisory"
],
"url": "https://github.com/symfony/symfony/security/advisories/GHSA-5pv8-ppvj-4h68"
},
{
"name": "FEDORA-2021-f3ad34aa9f",
"refsource": "FEDORA",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KENRNLB3FYXYGDWRBH2PDBOZZKOD7VY4/"
},
{
"name": "FEDORA-2021-121edb82dd",
"refsource": "FEDORA",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/VRUS2H2SSOQWNLBD35SKIWIDQEMV2PD3/"
},
{
"name": "FEDORA-2021-c57937ab9f",
"refsource": "FEDORA",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/UC7BND775DVZDQT3RMGD2HVB2PKLJDJW/"
},
{
"name": "FEDORA-2021-2d145b95f6",
"refsource": "FEDORA",
"tags": [
"Mailing List",
"Third Party Advisory"
],
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/RH7TMM5CHQYBFFGXWRPJDPB3SKCZXI2M/"
},
{
"name": "[debian-lts-announce] 20230711 [SECURITY] [DLA 3493-1] symfony security update",
"refsource": "MLIST",
"tags": [],
"url": "https://lists.debian.org/debian-lts-announce/2023/07/msg00014.html"
}
]
}
},
"impact": {
"baseMetricV2": {
"acInsufInfo": false,
"cvssV2": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "NONE",
"baseScore": 5.0,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "NONE",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 2.9,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"severity": "MEDIUM",
"userInteractionRequired": false
},
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"version": "3.1"
},
"exploitabilityScore": 3.9,
"impactScore": 1.4
}
},
"lastModifiedDate": "2023-07-12T01:15Z",
"publishedDate": "2021-05-13T16:15Z"
}
}
}
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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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