Skip to content
Permalink
Branch: master
Find file Copy path
Find file Copy path
1 contributor

Users who have contributed to this file

32 lines (31 sloc) 1.25 KB
title: Citrix Netscaler Attack CVE-2019-19781
description: Detects CVE-2019-19781 exploitation attempt against Citrix Netscaler, Application Delivery Controller and Citrix Gateway Attack
id: ac5a6409-8c89-44c2-8d64-668c29a2d756
references:
- https://support.citrix.com/article/CTX267679
- https://support.citrix.com/article/CTX267027
- https://isc.sans.edu/diary/25686
- https://twitter.com/mpgn_x64/status/1216787131210829826
- https://github.com/x1sec/x1sec.github.io/blob/master/CVE-2019-19781-DFIR.md
author: Arnim Rupp, Florian Roth
status: experimental
date: 2020/01/02
modified: 2020/01/15
logsource:
category: webserver
description: 'Make sure that your Netscaler appliance logs all kinds of attacks (test with http://your-citrix-gw.net/robots.txt). The directory traversal with ../ might not be needed on certain cloud instances or for authenticated users, so we also check for direct paths. All scripts in portal/scripts are exploitable except logout.pl.'
detection:
selection:
c-uri-path:
- '*/../vpns/*'
- '*/vpns/cfg/smb.conf'
- '*/vpns/portal/scripts/*.pl*'
condition: selection
fields:
- client_ip
- vhost
- url
- response
falsepositives:
- Unknown
level: critical
You can’t perform that action at this time.