Rule Document 1:67177

Rule Category

SERVER-WEBAPP -- Snort has detected traffic exploiting vulnerabilities in web based applications on servers.

Alert Message

SERVER-WEBAPP Splunk Enterprise PostgreSQL sidecar recovery server-side request forgery attempt

Rule Explanation

The rules are written to detect and prevent the connection string injection (SSRF) and arbitrary file write vulnerabilities in the Splunk Enterprise PostgreSQL sidecar recovery endpoints.

What To Look For

These rules will alert when attempts against Splunk Enterprise PostgreSQL are made towards exploiting resources.

Known Usage

Attacks/Scans seen in the wild

False Positives

No known false positives

Contributors

Cisco Talos Intelligence Group

Rule Groups

Rule Categories::Server::Web Applications

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

Adversaries may attempt to take advantage of a weakness in an Internet-facing computer or program using software, data, or commands in order to cause unintended or unanticipated behavior. The weakness in the system can be a bug, a glitch, or a design vulnerability. These applications are often websites, but can include databases (like SQL), standard services (like SMB or SSH), network device administration and management protocols (like SNMP and Smart Install), and any other applications with Internet accessible open sockets, such as web servers and related services.

Vulnerability::Severity::High

Vulnerability::Severity::Critical

CVE

CVE-2026-20253

Additional Links

advisory.splunk.com/advisories/SVD-2026-0603

Rule Vulnerability

Server-Side Request Forgery

Server-Side Request Forgery (SSRF) attackers abuse functionality on the server to read or update internal resources. The attacker can supply or modify a URL for the server to read or submit data to. By carefully selecting the URLs, the attacker may be able to read server configuration such as AWS metadata, connect to internal services like http enabled databases or perform post requests for internal services which are not intended to be exposed.

CVE Additional Information

This product uses data from the NVD API but is not endorsed or certified by the NVD.

CVE-2026-20253

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