The “Citrix Bleed” security vulnerability exploitation by LockBit 3.0 ransomware gang affiliates has been escalating recently.
This vulnerability, formally identified as CVE 2023-4966 and carrying a CVSS score 9.4, has zeroed in on NetScaler Web ADC and Gateway appliances. Despite a patch in October, the situation has worsened with savvy threat actors leveraging public proof-of-concept exploits.
The gravity of the matter lies in the vulnerability’s potential to facilitate an authentication bypass, presenting a tangible threat to corporate data security. High-profile targets, including Boeing, DP World, and ICBC, have already experienced the ramifications.
While patching remains paramount, it is not the sole solution.
CISA and Citrix stress the urgency of immediate upgrades and removing residual sessions. It is worth noting that LockBit 3.0 has reportedly organized a specialized team to exploit the “Citrix Bleed” vulnerability.
As we approach the Thanksgiving holiday, when security teams may be operating with reduced capacity, it is incumbent upon organizations to fortify their defenses.
In the spirit of collective resilience and proactive cybersecurity practices, let us remain steadfast in our commitment to safeguarding critical assets.