Citrix ADC and Citrix NetScaler Gateway Arbitrary Code Execution (CTX267027) (Direct Check)

critical Nessus Plugin ID 132752

Synopsis

The remote web application is affected by a path traversal leading to a remote code execution vulnerability.

Description

The version of Citrix ADC or Citrix NetScaler Gateway SSL VPN running on the remote web server is affected by a path traversal vulnerability that can lead to remote code execution. An unauthenticated, remote attacker can exploit this issue, by sending a specially crafted HTTP request to perform a path traversal that can lead to acheiving remote code execution.

Solution

No known fix is available. Refer to vendor documentation for configuration mitigation.

See Also

http://www.nessus.org/u?b3a23e8d

https://support.citrix.com/article/CTX267027

https://support.citrix.com/article/CTX267679

Plugin Details

Severity: Critical

ID: 132752

File Name: citrix_ssl_vpn_CVE-2019-19781.nbin

Version: 1.31

Type: remote

Family: CGI abuses

Published: 1/9/2020

Updated: 8/15/2022

Configuration: Enable thorough checks

Risk Information

VPR

Risk Factor: Critical

Score: 9.4

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P

Temporal Vector: E:H/RL:OF/RC:C

CVSS Score Source: CVE-2019-19781

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.4

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: E:H/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:citrix:netscaler_access_gateway_firmware

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 12/17/2019

Vulnerability Publication Date: 12/17/2019

CISA Known Exploited Dates: 5/3/2022

Exploitable With

CANVAS (CANVAS)

Metasploit (Citrix ADC (NetScaler) Directory Traversal RCE)

Reference Information

CVE: CVE-2019-19781

IAVA: 2020-A-0001-S

CISA-NCAS: AA22-011A