Overview
The CVE-2025-6505 is a critical vulnerability that impacts versions 4.6.2.3226 and below of Progress Software’s Hybrid Data Pipeline Server on Linux. This vulnerability exposes systems to unauthorized access and impersonation, presenting a significant risk to the integrity, availability, and confidentiality of data. The threat arises when OAuth Clients perform an OAuth handshake with the Hybrid Data Pipeline Server, as the server accepts client credentials from both HTTP headers and request parameters.
Vulnerability Summary
CVE ID: CVE-2025-6505
Severity: High (CVSS: 8.1)
Attack Vector: Network
Privileges Required: None
User Interaction: None
Impact: Unauthorized access, Impersonation, Potential system compromise or data leakage
Affected Products
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Product | Affected Versions
Progress Software’s Hybrid Data Pipeline Server | 4.6.2.3226 and below
How the Exploit Works
The vulnerability stems from the server’s acceptance of client credentials from both HTTP headers and request parameters during an OAuth handshake. An attacker can exploit this by combining credentials from different sources, allowing them to impersonate legitimate clients and gain unauthorized access to the system.
Conceptual Example Code
Below is a conceptual example of how the vulnerability might be exploited. In this hypothetical scenario, an attacker sends a malicious POST request with both HTTP headers and request parameters containing client credentials.
POST /oauth/token HTTP/1.1
Host: vulnerable-server.com
Content-Type: application/json
Authorization: Basic [legitimate client credentials]
{
"grant_type": "password",
"username": "[attacker's username]",
"password": "[attacker's password]",
"client_id": "[legitimate client id]",
"client_secret": "[legitimate client secret]"
}The server, unable to distinguish between the legitimate client credentials from the HTTP headers and the malicious credentials from the request parameters, grants the attacker access, leading to unauthorized access and potential data leakage.
Mitigation and Recommendations
The ideal solution is to apply the vendor patch which addresses this vulnerability. If unable to apply the patch immediately, consider implementing a Web Application Firewall (WAF) or Intrusion Detection System (IDS) as a temporary mitigation measure. Additionally, regularly audit your systems to detect any unusual activity and ensure that all systems run the most recent software version.