EDL invalid ips: "<FF><FE>1”
12729
Created On 10/26/21 23:10 PM - Last Modified 04/30/22 03:25 AM
Symptom
Invalid ips: "<FF><FE>1" when running EDL show command in order to list IP addresses from an EDL object
> request system external-list show type ip name "EDL TEST Block List"
EDL TEST Block List
Total valid entries : 0
Total ignored entries : 0
Total invalid entries : 7528
Total displayed entries : 100
Invalid ips:
<FF><FE>1
Environment
- PANOS 9.0.x
- PANOS 9.1.x
- Palo Alto 5220 Firewall
Cause
- Format error on EDL list file hosted in remote server
- Multiple spaces, special characters in comments, wrong encoding format
Original EDL File
1.1.1.1/32 # Palo Logs MVPower DVR TV Shell Unauthenticated Command Execution Vulnerability
2.2.2.2/32 # Palo Logs MVPower DVR TV Shell Unauthenticated Command Execution Vulnerability
3.3.3.3/32 # Palo Logs MVPower DVR TV Shell Unauthenticated Command Execution Vulnerability
4.4.4.4/32 # SecureWorks. Smallshell ASP Webshell Upload Detection (webshell)
5.5.5.5/32 # SecureWorks. Spyware: APIKey Backdoor Traffic Detection
6.6.6.6/32 # SecureWorks Spyware: Smallshell ASP Webshell Upload Detection
7.7.7.7/32 # SecureWorks Spyware: Smallshell ASP Webshell Upload Detection
Resolution
- Remove multiple spaces.
- Avoid using special characters in comments.
- Use either ASCII or UTF-8 format.
1.1.1.1/32 #Palo Logs MVPower DVR TV Shell Unauthenticated Command Execution Vulnerability
2.2.2.2/32 #Palo Logs MVPower DVR TV Shell Unauthenticated Command Execution Vulnerability
3.3.3.3/32 #Palo Logs MVPower DVR TV Shell Unauthenticated Command Execution Vulnerability
4.4.4.4/32 #SecureWorks Smallshell ASP Webshell Upload Detection webshell
5.5.5.5/32 #SecureWorks Spyware APIKey Backdoor Traffic Detection
6.6.6.6/32 #SecureWorks Spyware Smallshell ASP Webshell Upload Detection
7.7.7.7/32 #SecureWorks Spyware Smallshell ASP Webshell Upload Detection
- Refresh list.
> request system external-list refresh type ip name "EDL TEST Block List"
- Verify the EDL list
> request system external-list show type ip name "EDL TEST Block List"
Review our Formatting Guidelines for an External Dynamic List