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GHSA-XPHP-JRMH-9RJJ
Vulnerability from github – Published: 2022-05-24 17:44 – Updated: 2022-05-24 17:44
VLAI?
Details
Microsoft Windows Folder Redirection Elevation of Privilege Vulnerability
Severity ?
7.8 (High)
{
"affected": [],
"aliases": [
"CVE-2021-26887"
],
"database_specific": {
"cwe_ids": [
"CWE-269",
"CWE-59"
],
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"github_reviewed_at": null,
"nvd_published_at": "2021-03-11T16:15:00Z",
"severity": "HIGH"
},
"details": "Microsoft Windows Folder Redirection Elevation of Privilege Vulnerability",
"id": "GHSA-xphp-jrmh-9rjj",
"modified": "2022-05-24T17:44:21Z",
"published": "2022-05-24T17:44:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-26887"
},
{
"type": "WEB",
"url": "https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2021-26887"
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"severity": [
{
"score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
CVE-2021-26887 (GCVE-0-2021-26887)
Vulnerability from cvelistv5 – Published: 2021-03-11 15:42 – Updated: 2024-11-19 16:07
VLAI?
EPSS
Summary
<p>An elevation of privilege vulnerability exists in Microsoft Windows when Folder redirection has been enabled via Group Policy. When folder redirection file server is co-located with Terminal server, an attacker who successfully exploited the vulnerability would be able to begin redirecting another user's personal data to a created folder.</p>
<p>To exploit the vulnerability, an attacker can create a new folder under the Folder Redirection root path and create a junction on a newly created User folder. When the new user logs in, Folder Redirection would start redirecting to the folder and copying personal data.</p>
<p>This elevation of privilege vulnerability can only be addressed by reconfiguring Folder Redirection with Offline files and restricting permissions, and NOT via a security update for affected Windows Servers. See the <strong>FAQ</strong> section of this CVE for configuration guidance.</p>
Severity ?
CWE
- Elevation of Privilege
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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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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