CVE-2019-15260
📋 TL;DR
This vulnerability allows unauthenticated remote attackers to gain elevated privileges on Cisco Aironet Access Points by accessing specific URLs. Attackers can view sensitive information, modify wireless configurations, and disable the AP causing denial of service. All organizations using affected Cisco Aironet APs are at risk.
💻 Affected Systems
- Cisco Aironet Access Points
📦 What is this software?
⚠️ Risk & Real-World Impact
Worst Case
Attacker gains full administrative control over the AP, modifies wireless network settings to intercept traffic, disables the AP causing complete service disruption, and potentially pivots to internal networks.
Likely Case
Attacker modifies wireless configuration to create rogue access points, steals sensitive network information, and causes intermittent service disruptions.
If Mitigated
With proper network segmentation and access controls, impact is limited to the isolated AP segment with no lateral movement to critical systems.
🎯 Exploit Status
Exploitation requires only HTTP requests to specific URLs. No authentication or special tools needed.
🛠️ Fix & Mitigation
✅ Official Fix
Patch Version: 8.8.100.0 and later
Vendor Advisory: https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20191016-airo-unauth-access
Restart Required: Yes
Instructions:
1. Download firmware version 8.8.100.0 or later from Cisco.com. 2. Backup current configuration. 3. Upload new firmware via web interface or CLI. 4. Reboot AP to apply update. 5. Verify version after reboot.
🔧 Temporary Workarounds
Disable Web Management Interface
allDisable HTTP/HTTPS access to the AP management interface
no ip http server
no ip http secure-server
Restrict Management Access
allLimit management interface access to trusted IP addresses only
access-list 10 permit 192.168.1.0 0.0.0.255
ip http access-class 10
🧯 If You Can't Patch
- Segment APs on isolated VLANs with strict firewall rules
- Implement network monitoring for unauthorized configuration changes
🔍 How to Verify
Check if Vulnerable:
Check AP firmware version via web interface or CLI command 'show version'Check Version:
show version | include SoftwareVerify Fix Applied:
Verify firmware version is 8.8.100.0 or later and test that unauthorized URL access returns proper authentication prompts📡 Detection & Monitoring
Log Indicators:
- Unauthenticated access attempts to admin URLs
- Unexpected configuration changes
- AP reboot events
Network Indicators:
- HTTP requests to /admin/ URLs from untrusted sources
- Unusual wireless configuration changes
SIEM Query:
source="ap-logs" AND (url="*/admin/*" AND auth_status="failed") OR (event_type="config_change" AND user="unknown")