Oracle Cloud Data Breach: Attacker Claims 6 Million Credentials Compromised

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A threat actor on BreachForums claims to have taken over 6 million credentials from oraclecloud.com, including JKS files, passwords, key files, and Enterprise Manager JPS keys. The attacker also provided a list of potentially affected companies, raising concerns about a widespread breach. While Oracle has denied the claims, a suspicious flag uploaded to an Oracle portal—containing the attacker’s email—has added intrigue. BleepingComputer reported on this development, linking to the alleged flag.

BreachForums Post: https://lnkd.in/edgPRVJj
BleepingComputer Report: https://lnkd.in/e-gtbRiY
Attacker’s Flag: https://lnkd.in/eZCnWGa6

You Should Know: How to Secure Oracle Cloud & Detect Credential Leaks

1. Verify Compromised Credentials

Use tools like Have I Been Pwned or DeHashed to check if your credentials were exposed:

curl -s "https://api.dehashed.com/[email protected]" -u API_KEY: 

#### **2. Rotate Oracle Cloud Keys & Passwords**

Immediately rotate all Oracle Cloud credentials, including:

  • JKS files (Java Keystores)
  • SSH keys
  • Database passwords

**Linux Command to List JKS Files:**

find / -name "*.jks" 2>/dev/null 

**Regenerate SSH Keys:**

ssh-keygen -t rsa -b 4096 -f ~/.ssh/new_oracle_key 

3. Monitor Oracle Cloud Logs for Unauthorized Access

Check Oracle Cloud audit logs:

grep "authentication failure" /var/log/oracle-cloud.log 

#### **4. Enable Multi-Factor Authentication (MFA)**

Enforce MFA on all Oracle Cloud accounts:

oci iam user update --user-id USER_OCID --is-mfa-activated true 

#### **5. Check for Suspicious Network Connections**

Use `netstat` to detect unexpected Oracle Cloud connections:

netstat -tulnp | grep oracle 

#### **6. Scan for Malicious Files**

Use `clamav` to scan for malware:

sudo apt install clamav && sudo freshclam && sudo clamscan -r / 

### **What Undercode Say**

This incident highlights the importance of proactive credential management and threat intelligence monitoring. If the breach is confirmed, affected organizations must:
Revoke all exposed keys (oci iam customer-secret-key delete --key-id KEY_OCID)
Audit Oracle Cloud IAM policies (oci iam policy list --compartment-id COMP_OCID)
Deploy SIEM tools (e.g., Splunk, ELK) to track anomalous logins.

**Linux Command to Check Active Oracle Sessions:**

ps aux | grep 'oracle' 

**Windows Command to Verify Oracle Services:**

sc query | findstr "Oracle" 

**Expected Output:**

SERVICE_NAME: OracleServiceXE 
DISPLAY_NAME: Oracle Database Service XE 

Stay vigilant—threat actors often exploit stolen credentials for lateral movement.

Expected Output: A detailed analysis of the Oracle Cloud breach with actionable security steps.

References:

Reported By: Oletros En – Hackers Feeds
Extra Hub: Undercode MoN
Basic Verification: Pass āœ…

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