DESCRIPTION NAME:

CVE-2021-44790 - APACHE BUFFER OVERFLOW EXPLOIT - HTTP(REQUEST)

 CONFIDENCE LEVEL: HIGH
 SEVERITY INBOUND:
 SEVERITY OUTBOUND:
informational
Niedrig
Mittel
Hoch

 Überblick

This is Trend Micro detection for HTTP network protocol that manifests exploit activities and can be used for Point of Entry or Lateral Movement.

The host exhibiting this type of network behavior is likely compromised by malware, or being used by a malicious insider to gain unauthorized access to other hosts in the network.

CVE Exploit: CVE-2021-44790

 Technische Details

Attack Phase: Point of Entry or Lateral Movement

Protocol: HTTP

Risk Type: FRAUD

Threat Type: Exploit

Confidence Level: High

Severity: High(Inbound)| Medium(Outbound)

DDI Default Rule Status: Disable

Event Class: Exploit

Event Sub Class: Application

Behavior Indicator: Exploit

APT Related: YES

 Lösungen

Network Content Inspection Pattern Version: 1.14789.00
Network Content Inspection Pattern Release Date: 13 Jan 2022
Network Content Correlation Pattern Version: 1.14665.00
Network Content Correlation Pattern Release Date: 13 Jan 2022

Immediate Action

  • Change all passwords of the host and ensure the use of strong passwords.
  • Strong passwords should contain upper case letters, lower case letters, digits, punctuation marks, and other symbols. Remove any unrecognizable files, software, or services.
  • Update your Trend Micro products and pattern files to the latest version.
  • Scan the host for possible malware detection and to clean any detected items.

Secondary Action

To prevent future exploits, ensure that the host and others visible to the external network have their browsers, plugins, and operating systems fully updated with the latest patches. Also, use virtual patching even if the needed patch is still not available for deployment.


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