CVE-2022-26871: Trend Micro Apex Central Arbitrary File Upload Vulnerability
An arbitrary file upload vulnerability in Trend Micro Apex Central could allow an unauthenticated remote attacker to upload an arbitrary file which could lead to remote code execution.
Other sources
An arbitrary file upload vulnerability in Trend Micro Apex Central could allow for remote code execution.
— CISA
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Compensating control
Restrict network access to the management interfaces for Trend Micro Apex Central (and Trend Micro Apex One where deployed) to trusted IP addresses only via firewall/ACLs. Block public Internet access to these interfaces until a vendor fix is applied.
- Compensating control
Deploy a web application firewall (WAF) or intrusion prevention system (IPS) in front of the management interfaces to detect and block arbitrary file upload attempts and suspicious upload-related HTTP requests (for example requests containing file multipart/form-data or anomalous POST requests to management endpoints).
- Compensating control
Isolate or segment the affected Apex Central/Apex One servers from sensitive networks and minimize network services exposed from those hosts (move to a management VLAN with strict access controls) until the issue is remediated.
- Operational
Perform immediate log review and forensic inspection of Apex Central/Apex One servers for signs of exploitation (unexpected file uploads, web shells, or indicators of remote code execution). If compromise is suspected, contain the host, perform a full investigation, and rotate any credentials or keys that may have been exposed.
- Operational
Monitor Trend Micro security advisories and apply vendor-supplied patches, updates, or hotfixes for Apex Central and Apex One as soon as they are released.
Event History
Frequently Asked Questions
What is CVE-2022-26871?
CVE-2022-26871 is an arbitrary file upload vulnerability in Trend Micro Apex Central that could allow an unauthenticated remote attacker to upload an arbitrary file, potentially leading to remote code execution.
How severe is CVE-2022-26871?
CVE-2022-26871 has a severity rating of 9.8 out of 10, which indicates a critical vulnerability.
What software versions are affected by CVE-2022-26871?
CVE-2022-26871 affects Trend Micro Apex Central 2019 on Windows, Trend Micro Apex One SaaS, and Trend Micro Apex Central.
How can an attacker exploit CVE-2022-26871?
An unauthenticated remote attacker can exploit CVE-2022-26871 by uploading an arbitrary file, potentially allowing them to execute remote code.
Where can I find more information about CVE-2022-26871?
You can find more information about CVE-2022-26871 on the following websites: [link1], [link2], [link3]