Rule Category

SERVER-OTHER -- Snort has detected traffic exploiting vulnerabilities in a server in the network.

Alert Message

SERVER-OTHER Apache Log4j logging remote code execution attempt

Rule Explanation

This rule looks for attempts to exploit a remote code execution vulnerability in Log4j's "Lookup" functionality.

What To Look For

This rule looks for attempts to exploit a remote code execution vulnerability in Log4j's "Lookup" functionality.

Known Usage

No public information

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group

Rule Groups

Vendors + Products::NetApp::OnCommand

Vendors + Products::Oracle::Fusion Middleware

Vendors + Products::NetApp::Active IQ

Vendors + Products::Oracle::Financial Services

Vendors + Products::Oracle::MySQL

Vendors + Products::Cisco::UCS / HyperFlex

Vendors + Products::NetApp::SolidFire HCI

Vendors + Products::Cisco::Collaboration

Vendors + Products::Cisco::Nexus

Vendors + Products::Debian::Linux

Vendors + Products::NetApp::Cloud Services

Vendors + Products::Oracle::Communications

Vendors + Products::Cisco::Prime

Vendors + Products::Oracle::PeopleSoft

Vendors + Products::Oracle::E-Business Suite

Vendors + Products::NetApp::ONTAP

Vendors + Products::Fedora Project::Fedora Linux

Vendors + Products::Cisco::SD-WAN

Vulnerability::Severity::Medium

Vulnerability::Severity::Critical

MITRE::ATT&CK Framework::Enterprise::Initial Access::Exploit Public-Facing Application

Vulnerability::Severity::High

Vendors + Products::Oracle::MySQL Enterprise Monitor

Vendors + Products::Oracle::Enterprise Manager

Vendors + Products::Oracle::Agile PLM

Vendors + Products::Cisco::Wireless LAN

Vendors + Products::NetApp::SnapCenter

Vendors + Products::Cisco::Smart Licensing

Vendors + Products::Cisco::Secure

Vendors + Products::Cisco::ISE / ACS

Vendors + Products::Cisco::Firepower

Vendors + Products::Oracle::Database

CVE

Rule Vulnerability

Remote File Inclusion

Remote File Inclusion (RFI) attacks occur when a webserver takes a file crafted by an attacker as input and runs or stores it in an unsafe manner. For instance, the webserver could accept an image file that is actually code, then call it to execute after uploading. RFI attacks happen on web applications that dynamically include external files or scripts. A successful RFI can lead to data leaks, remote code execution, or cross site scripting. Avoid dynamic inclusion of user input files, or whitelist files that may be included. Keep the PHP allow_url_include option set to off; this will not protect against Local File Inclusion attacks.

CVE Additional Information

This product uses data from the NVD API but is not endorsed or certified by the NVD.
CVE-2021-44228
Loading description
CVE-2021-45046
Loading description
CVE-2021-45105
Loading description
CVE-2021-44832
Loading description