gsd-2021-23385
Vulnerability from gsd
Modified
2023-12-13 01:23
Details
This affects all versions of package Flask-Security. When using the get_post_logout_redirect and get_post_login_redirect functions, it is possible to bypass URL validation and redirect a user to an arbitrary URL by providing multiple back slashes such as \\\evil.com/path. This vulnerability is only exploitable if an alternative WSGI server other than Werkzeug is used, or the default behaviour of Werkzeug is modified using 'autocorrect_location_header=False. **Note:** Flask-Security is not maintained anymore.
Aliases
Aliases
{
"GSD": {
"alias": "CVE-2021-23385",
"description": "This affects all versions of package Flask-Security. When using the get_post_logout_redirect and get_post_login_redirect functions, it is possible to bypass URL validation and redirect a user to an arbitrary URL by providing multiple back slashes such as \\\\\\evil.com/path. This vulnerability is only exploitable if an alternative WSGI server other than Werkzeug is used, or the default behaviour of Werkzeug is modified using \u0027autocorrect_location_header=False. **Note:** Flask-Security is not maintained anymore.",
"id": "GSD-2021-23385",
"references": [
"https://www.suse.com/security/cve/CVE-2021-23385.html"
]
},
"gsd": {
"metadata": {
"exploitCode": "unknown",
"remediation": "unknown",
"reportConfidence": "confirmed",
"type": "vulnerability"
},
"osvSchema": {
"aliases": [
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],
"details": "This affects all versions of package Flask-Security. When using the get_post_logout_redirect and get_post_login_redirect functions, it is possible to bypass URL validation and redirect a user to an arbitrary URL by providing multiple back slashes such as \\\\\\evil.com/path. This vulnerability is only exploitable if an alternative WSGI server other than Werkzeug is used, or the default behaviour of Werkzeug is modified using \u0027autocorrect_location_header=False. **Note:** Flask-Security is not maintained anymore.",
"id": "GSD-2021-23385",
"modified": "2023-12-13T01:23:29.936661Z",
"schema_version": "1.4.0"
}
},
"namespaces": {
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"ASSIGNER": "report@snyk.io",
"DATE_PUBLIC": "2022-08-02T13:22:34.794204Z",
"ID": "CVE-2021-23385",
"STATE": "PUBLIC",
"TITLE": "Open Redirect"
},
"affects": {
"vendor": {
"vendor_data": [
{
"product": {
"product_data": [
{
"product_name": "Flask-Security",
"version": {
"version_data": [
{
"version_affected": "\u003e=",
"version_value": "0"
}
]
}
}
]
},
"vendor_name": "n/a"
}
]
}
},
"credit": [
{
"lang": "eng",
"value": "Noam Moshe of Claroty"
}
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"data_format": "MITRE",
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"value": "This affects all versions of package Flask-Security. When using the get_post_logout_redirect and get_post_login_redirect functions, it is possible to bypass URL validation and redirect a user to an arbitrary URL by providing multiple back slashes such as \\\\\\evil.com/path. This vulnerability is only exploitable if an alternative WSGI server other than Werkzeug is used, or the default behaviour of Werkzeug is modified using \u0027autocorrect_location_header=False. **Note:** Flask-Security is not maintained anymore."
}
]
},
"impact": {
"cvss": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 5.4,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N/E:P/RL:U/RC:C",
"version": "3.1"
}
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"value": "Open Redirect"
}
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}
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},
"references": {
"reference_data": [
{
"name": "https://security.snyk.io/vuln/SNYK-PYTHON-FLASKSECURITY-1293234",
"refsource": "MISC",
"url": "https://security.snyk.io/vuln/SNYK-PYTHON-FLASKSECURITY-1293234"
},
{
"name": "https://github.com/mattupstate/flask-security",
"refsource": "MISC",
"url": "https://github.com/mattupstate/flask-security"
},
{
"name": "https://snyk.io/blog/url-confusion-vulnerabilities/",
"refsource": "MISC",
"url": "https://snyk.io/blog/url-confusion-vulnerabilities/"
},
{
"name": "[debian-lts-announce] 20230828 [SECURITY] [DLA 3545-1] flask-security security update",
"refsource": "MLIST",
"url": "https://lists.debian.org/debian-lts-announce/2023/08/msg00034.html"
}
]
}
},
"gitlab.com": {
"advisories": [
{
"affected_range": "\u003c=3.0.0",
"affected_versions": "All versions up to 3.0.0",
"cvss_v3": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"cwe_ids": [
"CWE-1035",
"CWE-601",
"CWE-937"
],
"date": "2022-10-07",
"description": "This affects all versions of package Flask-Security. When using the get_post_logout_redirect and get_post_login_redirect functions, it is possible to bypass URL validation and redirect a user to an arbitrary URL by providing multiple back slashes such as \\\\\\evil.com/path. This vulnerability is only exploitable if an alternative WSGI server other than Werkzeug is used, or the default behaviour of Werkzeug is modified using \u0027autocorrect_location_header=False. **Note:** Flask-Security is not maintained anymore.",
"fixed_versions": [],
"identifier": "CVE-2021-23385",
"identifiers": [
"GHSA-cg8c-gc2j-2wf7",
"CVE-2021-23385"
],
"not_impacted": "",
"package_slug": "pypi/Flask-Security",
"pubdate": "2022-10-07",
"solution": "Unfortunately, there is no solution available yet.",
"title": "URL Redirection to Untrusted Site (\u0027Open Redirect\u0027)",
"urls": [
"https://nvd.nist.gov/vuln/detail/CVE-2021-23385",
"https://github.com/mattupstate/flask-security",
"https://security.snyk.io/vuln/SNYK-PYTHON-FLASKSECURITY-1293234",
"https://snyk.io/blog/url-confusion-vulnerabilities/",
"https://github.com/advisories/GHSA-cg8c-gc2j-2wf7"
],
"uuid": "0eefb327-1686-4fd6-9d19-32a3468b0ac0"
}
]
},
"nvd.nist.gov": {
"configurations": {
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"nodes": [
{
"children": [],
"cpe_match": [
{
"cpe23Uri": "cpe:2.3:a:flask-security_project:flask-security:*:*:*:*:*:*:*:*",
"cpe_name": [],
"vulnerable": true
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"operator": "OR"
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"cve": {
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"ID": "CVE-2021-23385"
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"description": {
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"lang": "en",
"value": "This affects all versions of package Flask-Security. When using the get_post_logout_redirect and get_post_login_redirect functions, it is possible to bypass URL validation and redirect a user to an arbitrary URL by providing multiple back slashes such as \\\\\\evil.com/path. This vulnerability is only exploitable if an alternative WSGI server other than Werkzeug is used, or the default behaviour of Werkzeug is modified using \u0027autocorrect_location_header=False. **Note:** Flask-Security is not maintained anymore."
}
]
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"problemtype": {
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"value": "CWE-601"
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"references": {
"reference_data": [
{
"name": "https://security.snyk.io/vuln/SNYK-PYTHON-FLASKSECURITY-1293234",
"refsource": "MISC",
"tags": [
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"Third Party Advisory"
],
"url": "https://security.snyk.io/vuln/SNYK-PYTHON-FLASKSECURITY-1293234"
},
{
"name": "https://github.com/mattupstate/flask-security",
"refsource": "MISC",
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"url": "https://github.com/mattupstate/flask-security"
},
{
"name": "https://snyk.io/blog/url-confusion-vulnerabilities/",
"refsource": "MISC",
"tags": [
"Technical Description",
"Third Party Advisory"
],
"url": "https://snyk.io/blog/url-confusion-vulnerabilities/"
},
{
"name": "[debian-lts-announce] 20230828 [SECURITY] [DLA 3545-1] flask-security security update",
"refsource": "MLIST",
"tags": [],
"url": "https://lists.debian.org/debian-lts-announce/2023/08/msg00034.html"
}
]
}
},
"impact": {
"baseMetricV3": {
"cvssV3": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "LOW",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N",
"version": "3.1"
},
"exploitabilityScore": 2.8,
"impactScore": 2.7
}
},
"lastModifiedDate": "2023-08-28T19:15Z",
"publishedDate": "2022-08-02T14:15Z"
}
}
}
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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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