Citrix Content Collaboration ShareFile Improper Access Control Vulnerability

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2023-08-16
• EPSS: 97% chance of exploitation in the next 30 days (higher than 100% of CVEs)
• Critical severity: CVSS 9.8

[ Description ]Official description

A vulnerability has been discovered in the customer-managed ShareFile storage zones controller which, if exploited, could allow an unauthenticated attacker to remotely compromise the customer-managed ShareFile storage zones controller.

CISA: Citrix Content Collaboration contains an improper access control vulnerability that could allow an unauthenticated attacker to remotely compromise customer-managed ShareFile storage zones controllers.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 6 Sep 2023): Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

No fix or interim patch is linked from our sources yet. Check the vendor references below and limit exposure of affected systems until a fix is available.

[ References ]References

• support.citrix.com/article/CTX559517/sharefile-storagezones-controller-security-update-…Broken LinkVendor Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource