CVE-2023-39057
📋 TL;DR
CVE-2023-39057 is an information disclosure vulnerability in hirochanKAKIwaiting v13.6.1 that allows attackers to leak the channel access token. This enables unauthorized message sending through the compromised channel. Organizations using this specific version of hirochanKAKIwaiting are affected.
💻 Affected Systems
- hirochanKAKIwaiting
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attackers gain complete control over the messaging channel, sending malicious messages to users, spreading misinformation, phishing links, or malware, potentially leading to credential theft or system compromise.
Likely Case
Attackers obtain the access token and send spam or phishing messages through the legitimate channel, damaging reputation and potentially tricking users into harmful actions.
If Mitigated
With proper network segmentation and monitoring, unauthorized access is detected quickly, limiting the window for exploitation and preventing widespread abuse.
🎯 Exploit Status
The vulnerability allows token leakage without authentication, making exploitation straightforward once identified.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: v13.6.2 or later
Vendor Advisory: https://github.com/syz913/CVE-reports/blob/main/CVE-2023-39057.md
Restart Required: Yes
Instructions:
1. Backup current configuration. 2. Download the latest version from the official repository. 3. Stop the hirochanKAKIwaiting service. 4. Replace the vulnerable version with the patched version. 5. Restart the service and verify functionality.
🔧 Temporary Workarounds
Network Isolation
linuxRestrict network access to the hirochanKAKIwaiting service to trusted IPs only.
iptables -A INPUT -p tcp --dport <service_port> -s <trusted_ip> -j ACCEPT
iptables -A INPUT -p tcp --dport <service_port> -j DROP
Access Token Rotation
allManually rotate the channel access token to invalidate any potentially leaked tokens.
🧯 If You Can't Patch
- Implement strict network access controls to limit exposure to the service.
- Monitor logs for unusual message sending patterns and implement alerting.
🔍 How to Verify
Check if Vulnerable:
Check the installed version of hirochanKAKIwaiting. If it is exactly v13.6.1, the system is vulnerable.Check Version:
Check the application's version file or run the service with a version flag, e.g., `hirochanKAKIwaiting --version`Verify Fix Applied:
Verify the version is updated to v13.6.2 or later and test that the token leakage no longer occurs.📡 Detection & Monitoring
Log Indicators:
- Unusual access patterns to token endpoints
- Failed authentication attempts followed by successful token retrieval
- Messages sent from unexpected IP addresses
Network Indicators:
- Unexpected outbound connections from the service to external messaging APIs
- High volume of message-sending requests in a short time
SIEM Query:
source="hirochanKAKIwaiting" AND (event="token_access" OR event="message_sent") | stats count by src_ip, user