Vulnerability Details : CVE-2020-8983
An arbitrary file write issue exists in all versions of Citrix ShareFile StorageZones (aka storage zones) Controller, including the most recent 5.10.x releases as of May 2020, which allows remote code execution. RCE and file access is granted to everything hosted by ShareFile, be it on-premise or inside Citrix Cloud itself (both are internet facing). NOTE: unlike most CVEs, exploitability depends on the product version that was in use when a particular setup step was performed, NOT the product version that is in use during a current assessment of a CVE consumer's product inventory. Specifically, the vulnerability can be exploited if a storage zone was created by one of these product versions: 5.9.0, 5.8.0, 5.7.0, 5.6.0, 5.5.0, or earlier. This CVE differs from CVE-2020-7473 and CVE-2020-8982.
Vulnerability category: Directory traversalExecute code
Products affected by CVE-2020-8983
- cpe:2.3:a:citrix:sharefile_storagezones_controller:*:*:*:*:*:*:*:*
- cpe:2.3:a:citrix:sharefile_storagezones_controller:5.6.0:*:*:*:*:*:*:*
- cpe:2.3:a:citrix:sharefile_storagezones_controller:5.7.0:*:*:*:*:*:*:*
- cpe:2.3:a:citrix:sharefile_storagezones_controller:5.8.0:*:*:*:*:*:*:*
- cpe:2.3:a:citrix:sharefile_storagezones_controller:5.9.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2020-8983
2.24%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 84 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2020-8983
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.0
|
MEDIUM | AV:N/AC:L/Au:N/C:P/I:N/A:N |
10.0
|
2.9
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |
3.9
|
3.6
|
NIST |
CWE ids for CVE-2020-8983
-
The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.Assigned by: nvd@nist.gov (Primary)
References for CVE-2020-8983
-
https://support.citrix.com/article/CTX269106
Citrix ShareFile storage zones Controller multiple security updatesVendor Advisory
-
https://www.linkedin.com/posts/jonas-hansen-2a2606b_citrix-sharefile-storage-zones-controller-activity-6663432907455025152-8_w6/
Jonas Hansen on LinkedIn: Citrix ShareFile storage zones Controller multiple security updates | 13 comments
-
https://drive.google.com/file/d/15iy6S8CN9Hku0a2zrcrXK9FAocmQvMwT/view?usp=sharing
image.png - Google Drive
Jump to