Citrix ShareFile - RCE (CVE-2021-22941)
Description
Improper Access Control in Citrix ShareFile storage zones controller before 5.11.20 may allow an unauthenticated attacker to remotely compromise the storage zones controller.
psychologyCrowdSec Analysis
CVE-2021-22941 is an improper access control vulnerability in Citrix ShareFile storage zones controller that could allow unauthenticated remote compromise.
CrowdSec has been tracking this vulnerability and its exploits since 15th of December 2023.
CrowdSec network observations suggest that most exploitation of CVE-2021-22941 involves focused reconnaissance to identify viable targets. Attackers typically tailor their campaigns based on system exposure and configuration. It is unlikely that a given attack is accidental. CrowdSec network telemetry also shows that exploitation of CVE-2021-22941 has significantly declined over the past week. Attack volumes are well below the long-term average, suggesting attackers are rapidly losing interest. The vulnerability appears to be falling out of active use across most threat landscapes.
Attempts to exploit this vulnerability often involve requests to endpoints containing /upload.aspx.
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| Event | Date |
|---|---|
| CVE Published | 2021-09-23 |
| CISA KEV | 2022-03-25 |
| CISA Remediation Deadline | 2022-04-15 |
| Rule Released | 2023-12-15 |
| CrowdSec First Seen | 2024-11-23 |