CVE-2020-5196
Cerberus FTP Server Enterprise Edition prior to versions 11.0.3 and 10.0.18 allows an authenticated attacker to create files, display hidden files, list directories, and list files without the permission to zip and download (or unzip and upload) files.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.20%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Cerberus FTP Server Enterprise Edition prior to versions 11.0.3 and 10.0.18 allows an authenticated attacker to create files, display hidden files, list directories, and list files without the permission to zip and download (or unzip and upload) files. There are multiple ways to bypass certain permissions by utilizing the zip and unzip features. As a result, users without permission can see files, folders, and hidden files, and can create directories without permission.
- CVSS 3.1
- 8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- EPSS
- 1.20% probability · 67th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-276
- Affected
- cerberusftp/ftp server
- Source
- cve@mitre.org
References
- https://support.cerberusftp.com/hc/en-us/community/topics/360000164199-AnnouncementsRelease Notes, Vendor Advisory
- https://www.cerberusftp.com/zip-unzip-permission-bypass-vulnerability-fixed-in-cerberus-ftp-server-versions-11-0-3-and-10-0-18/Vendor Advisory
- https://www.doyler.net/security-not-included/cerberus-ftp-vulnerabilitiesExploit, Third Party Advisory
- https://support.cerberusftp.com/hc/en-us/community/topics/360000164199-AnnouncementsRelease Notes, Vendor Advisory
- https://www.cerberusftp.com/zip-unzip-permission-bypass-vulnerability-fixed-in-cerberus-ftp-server-versions-11-0-3-and-10-0-18/Vendor Advisory
- https://www.doyler.net/security-not-included/cerberus-ftp-vulnerabilitiesExploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.