High severity · published Jan 15, 2022
CVE-2021-33828
The files_antivirus component before 1.0.0 for ownCloud mishandles the protection mechanism by which malicious files (that have been uploaded to a public share) are supposed to be…
8.8
CVSS
1.2%
EPSS
No
On KEV
Description
The files_antivirus component before 1.0.0 for ownCloud mishandles the protection mechanism by which malicious files (that have been uploaded to a public share) are supposed to be deleted upon detection.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 67% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FA
Files Antivirus · Owncloud
before 1.0.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-33828
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-33828
Release Notes
https://doc.owncloud.com/server/admin_manual/release_notes.html
Vendor Advisory
https://owncloud.com/security-advisories/cve-2021-33828/
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