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How CVE-2026-60690 Works
CVE-2026-60690 is an improper authorization vulnerability affecting Oracle Siebel CRM Cloud Applications, specifically within the Siebel Cloud Manager component. The flaw resides in an unknown function of Siebel Cloud Manager, where the application fails to perform or incorrectly performs authorization checks when an actor attempts to access a resource or perform an action. This weakness is classified under CWE-285 (Improper Authorization).
The vulnerability is easily exploitable over a network via HTTP by a low-privileged attacker. No user interaction is required, and the attack complexity is low. While the primary vulnerable component is Siebel CRM Cloud Applications, successful exploitation can lead to a scope change, meaning attacks may significantly impact additional products within the environment.
An attacker with minimal privileges can send crafted HTTP requests to the Siebel Cloud Manager endpoint, bypassing authorization controls. This allows the attacker to read critical data and potentially gain complete access to all data accessible within Siebel CRM Cloud Applications. The vulnerability does not directly impact integrity or availability, focusing solely on confidentiality. However, some Japanese sources (JVNDB) report a CVSS score of 8.8 with full CIA impact, indicating that the scope and impact may vary depending on the deployment configuration. The technical details are not publicly disclosed, and no exploit is currently available. The exploit price is estimated between $5,000 and $25,000.
DailyCVE Form:
Platform: Siebel CRM Cloud
Version: 22.3 – 26.5
Vulnerability: Improper Authorization (CWE-285)
Severity: High (CVSS 7.7)
Date: July 21, 2026
Prediction: October 2026 CPU
What Undercode Say: Analytics & Threat Intelligence
CTI Interest Score: Moderate (0.00-0.15 range)
Current Exploit Price: $5,000 – $25,000
MITRE ATT&CK Technique: T1548.002 (Abuse Elevation Control Mechanism)
Attack Vector: Network (HTTP)
Privileges Required: Low
User Interaction: None
Scope: Changed (impacts additional products)
Bash Commands & Code Snippets (Reconnaissance & Detection)
Check Siebel Cloud Manager version curl -s -X GET "https://<siebel-crm-host>/siebelcloudmanager/api/version" -H "Authorization: Bearer <low_priv_token>" Enumerate accessible endpoints (potential information disclosure) curl -s -X GET "https://<siebel-crm-host>/siebelcloudmanager/api/admin/config" -H "Authorization: Bearer <low_priv_token>" Test for improper authorization - attempt to access restricted resource curl -s -X GET "https://<siebel-crm-host>/siebelcloudmanager/api/internal/tenants" -H "Authorization: Bearer <low_priv_token>" Log analysis - detect unauthorized access attempts grep "GET /siebelcloudmanager/api/internal/" /var/log/siebel/access.log | grep -v "200 OK" Network scan for exposed Siebel Cloud Manager instances nmap -p 443 --script http- -oG - <target_network> | grep "Siebel Cloud Manager"
Exploitation Approach (Theoretical – No Public Exploit)
The vulnerability stems from missing authorization checks in Siebel Cloud Manager’s API endpoints. A low-privileged attacker can:
1. Authenticate with valid low-privilege credentials.
- Craft HTTP requests to internal API endpoints (e.g.,
/api/admin/,/api/internal/) that should require higher privileges. - Bypass authorization by manipulating request headers or parameters (e.g.,
X-User-Role,X-Admin: true). - Receive sensitive data in responses, including tenant configurations, user lists, and system secrets.
Protection from CVE-2026-60690
- Apply Oracle Patch: Install the upcoming Critical Patch Update (CPU) expected in October 2026.
- Network Segmentation: Restrict network access to Siebel Cloud Manager to trusted administrative networks only.
- API Gateway Policies: Implement strict authentication and authorization rules at the API gateway level to block unauthorized internal endpoint access.
- Least Privilege: Regularly audit and reduce user privileges; ensure low-privileged accounts cannot access administrative functions.
- Monitoring: Enable detailed logging for Siebel Cloud Manager API calls and set up alerts for anomalous access patterns (e.g., 403 errors followed by 200 OK on sensitive endpoints).
- Web Application Firewall (WAF): Deploy WAF rules to detect and block crafted HTTP requests targeting Siebel Cloud Manager.
Impact
- Confidentiality: Unauthorized access to critical data, including customer records, sales data, and system configurations.
- Scope Change: Potential compromise of additional products connected to Siebel CRM Cloud Applications.
- Business Disruption: Data breaches may lead to regulatory fines, reputational damage, and loss of customer trust.
- Lateral Movement: Exposed credentials and configuration data could enable further attacks on internal infrastructure.
- CVSS Score: 7.7 (High) – reflects significant confidentiality impact with low attack complexity.
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Sources:
Reported By: nvd.nist.gov
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