VMware vCenter Server Improper Access Control

[ Why it matters ]Priority signals

• Exploited in the wild: on CISA's Known Exploited Vulnerabilities list since 2022-01-10
• EPSS: 49% chance of exploitation in the next 30 days (higher than 99% of CVEs)

[ Description ]Official description

Rhttproxy as used in vCenter Server contains a vulnerability due to improper implementation of URI normalization. A malicious actor with network access to port 443 on vCenter Server may exploit this issue to bypass proxy leading to internal endpoints being accessed.

CISA: Rhttproxy as used in vCenter Server contains a vulnerability due to improper implementation of URI normalization.

[ Fixes ]Fixes and patches

CISA required action (US federal deadline 24 Jan 2022): Apply updates per vendor instructions.

• Patch on vmware.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD

[ References ]References

• www.vmware.com/security/advisories/VMSA-2021-0020.htmlPatchVendor Advisory
• www.cisa.gov/known-exploited-vulnerabilities-catalogUS Government Resource