Known Exploited Vulnerability
6.5
MEDIUM
CVE-2020-8195
Citrix ADC, Gateway, and SD-WAN WANOP Appliance In - [Actively Exploited]
Description

Improper input validation in Citrix ADC and Citrix Gateway versions before 13.0-58.30, 12.1-57.18, 12.0-63.21, 11.1-64.14 and 10.5-70.18 and Citrix SDWAN WAN-OP versions before 11.1.1a, 11.0.3d and 10.2.7 resulting in limited information disclosure to low privileged users.

INFO

Published Date :

July 10, 2020, 4:15 p.m.

Last Modified :

Nov. 21, 2024, 5:38 a.m.

Source :

[email protected]

Remotely Exploitable :

Yes !

Impact Score :

3.6

Exploitability Score :

2.8
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Citrix ADC, Citrix Gateway, and multiple Citrix SD-WAN WANOP appliance models contain an information disclosure vulnerability.

Required Action :

Apply updates per vendor instructions.

Notes :

https://nvd.nist.gov/vuln/detail/CVE-2020-8195

Public PoC/Exploit Available at Github

CVE-2020-8195 has a 9 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

Affected Products

The following products are affected by CVE-2020-8195 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Citrix application_delivery_controller_firmware
2 Citrix netscaler_gateway_firmware
3 Citrix sd-wan_wanop
4 Citrix gateway_firmware
5 Citrix gateway_plug-in_for_linux
6 Citrix netscaler_gateway
7 Citrix application_delivery_controller
8 Citrix gateway
9 Citrix 4000-wo
10 Citrix 4100-wo
11 Citrix 5000-wo
12 Citrix 5100-wo
: Total Affected Vendor : 1 | Products : 12
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2020-8195.

URL Resource
http://packetstormsecurity.com/files/160047/Citrix-ADC-NetScaler-Local-File-Inclusion.html Exploit Third Party Advisory VDB Entry
https://support.citrix.com/article/CTX276688 Vendor Advisory
http://packetstormsecurity.com/files/160047/Citrix-ADC-NetScaler-Local-File-Inclusion.html Exploit Third Party Advisory VDB Entry
https://support.citrix.com/article/CTX276688 Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
ipcis/Citrix_ADC_Gateway_Check

None

Python

Updated: 1 year, 11 months ago
1 stars 0 fork 0 watcher
Born at : Dec. 31, 2022, 4:16 p.m. This repo has been linked 5 different CVEs too.
Profile Photo
triw0lf/Security-Matters-22

Resources for Security Matters talk 2022

Updated: 2 years, 8 months ago
1 stars 0 fork 0 watcher
Born at : April 20, 2022, 5:31 p.m. This repo has been linked 39 different CVEs too.
Profile Photo
Ostorlab/KEV

Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.

cisa-kev vulnerability 0day cisa exploits

Updated: 2 weeks, 6 days ago
548 stars 35 fork 35 watcher
Born at : April 19, 2022, 8:58 a.m. This repo has been linked 1228 different CVEs too.
Profile Photo
SexyBeast233/SecBooks

安全类各家文库大乱斗

HTML CSS JavaScript Go Python Shell C

Updated: 3 weeks ago
982 stars 241 fork 241 watcher
Born at : Feb. 15, 2022, 3:14 a.m. This repo has been linked 568 different CVEs too.
Profile Photo
r0eXpeR/supplier

主流供应商的一些攻击性漏洞汇总

Updated: 1 month ago
808 stars 142 fork 142 watcher
Born at : Nov. 8, 2021, 2:12 a.m. This repo has been linked 93 different CVEs too.
Profile Photo
adarshshetty1/content

None

Dockerfile Python

Updated: 3 years, 2 months ago
0 stars 10 fork 10 watcher
Born at : Sept. 30, 2021, 10 a.m. This repo has been linked 8 different CVEs too.
Profile Photo
EvilAnne/2020-Read-article

2020年网上阅读过的文章记录

Updated: 9 months ago
40 stars 11 fork 11 watcher
Born at : Dec. 31, 2020, 3:57 p.m. This repo has been linked 8 different CVEs too.
Profile Photo
PR3R00T/CVE-2020-8193-Citrix-Scanner

Scanning for CVE-2020-8193 - Auth Bypass check

Python

Updated: 1 year, 8 months ago
8 stars 2 fork 2 watcher
Born at : July 13, 2020, 10:36 a.m. This repo has been linked 3 different CVEs too.
Profile Photo
Zeop-CyberSec/citrix_adc_netscaler_lfi

This Metasploit-Framework module can be use to help companies to check the last Citrix vulnerability CVE-2020-8193, CVE-2020-8195 and CVE-2020-8196 (disclosed July 08, 2020).

Ruby

Updated: 4 months, 2 weeks ago
7 stars 3 fork 3 watcher
Born at : July 12, 2020, 1:37 p.m. This repo has been linked 3 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2020-8195 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2020-8195 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by af854a3a-2127-422b-91ae-364da2661108

    Nov. 21, 2024

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/160047/Citrix-ADC-NetScaler-Local-File-Inclusion.html
    Added Reference https://support.citrix.com/article/CTX276688
  • CVE Modified by [email protected]

    May. 14, 2024

    Action Type Old Value New Value
  • Reanalysis by [email protected]

    Sep. 20, 2022

    Action Type Old Value New Value
    Removed CWE NIST CWE-20
    Added CWE NIST CWE-22
  • Modified Analysis by [email protected]

    Sep. 23, 2021

    Action Type Old Value New Value
    Changed Reference Type http://packetstormsecurity.com/files/160047/Citrix-ADC-NetScaler-Local-File-Inclusion.html No Types Assigned http://packetstormsecurity.com/files/160047/Citrix-ADC-NetScaler-Local-File-Inclusion.html Exploit, Third Party Advisory, VDB Entry
  • CVE Modified by [email protected]

    Nov. 13, 2020

    Action Type Old Value New Value
    Added Reference http://packetstormsecurity.com/files/160047/Citrix-ADC-NetScaler-Local-File-Inclusion.html [No Types Assigned]
  • Initial Analysis by [email protected]

    Jul. 13, 2020

    Action Type Old Value New Value
    Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:N/A:N)
    Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
    Changed Reference Type https://support.citrix.com/article/CTX276688 No Types Assigned https://support.citrix.com/article/CTX276688 Vendor Advisory
    Added CWE NIST CWE-20
    Added CPE Configuration AND OR *cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:* versions from (including) 10.5 up to (excluding) 10.5-70.18 *cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:* versions from (including) 11.1 up to (excluding) 11.1-64.14 *cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:* versions from (including) 12.0 up to (excluding) 12.0-63.21 *cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:* versions from (including) 12.1 up to (excluding) 12.1-57.18 *cpe:2.3:o:citrix:application_delivery_controller_firmware:*:*:*:*:*:*:*:* versions from (including) 13.0 up to (excluding) 13.0-58.30 OR cpe:2.3:h:citrix:application_delivery_controller:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:citrix:netscaler_gateway_firmware:*:*:*:*:*:*:*:* versions from (including) 10.5 up to (excluding) 10.5-70.18 *cpe:2.3:o:citrix:netscaler_gateway_firmware:*:*:*:*:*:*:*:* versions from (including) 11.1 up to (excluding) 11.1-64.14 *cpe:2.3:o:citrix:netscaler_gateway_firmware:*:*:*:*:*:*:*:* versions from (including) 12.0 up to (excluding) 12.0-63.21 *cpe:2.3:o:citrix:netscaler_gateway_firmware:*:*:*:*:*:*:*:* versions from (including) 12.1 up to (excluding) 12.1-57.18 OR cpe:2.3:h:citrix:netscaler_gateway:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:citrix:gateway_firmware:*:*:*:*:*:*:*:* versions from (including) 13.0 up to (excluding) 13.0-58.30 OR cpe:2.3:h:citrix:gateway:-:*:*:*:*:*:*:*
    Added CPE Configuration AND OR *cpe:2.3:o:citrix:sd-wan_wanop:*:*:*:*:*:*:*:* versions from (including) 10.2 up to (excluding) 10.2.7 *cpe:2.3:o:citrix:sd-wan_wanop:*:*:*:*:*:*:*:* versions from (including) 11.0 up to (excluding) 11.0.3d *cpe:2.3:o:citrix:sd-wan_wanop:*:*:*:*:*:*:*:* versions from (including) 11.1 up to (excluding) 11.1.1a OR cpe:2.3:h:citrix:4000-wo:-:*:*:*:*:*:*:* cpe:2.3:h:citrix:4100-wo:-:*:*:*:*:*:*:* cpe:2.3:h:citrix:5000-wo:-:*:*:*:*:*:*:* cpe:2.3:h:citrix:5100-wo:-:*:*:*:*:*:*:*
    Added CPE Configuration OR *cpe:2.3:a:citrix:gateway_plug-in_for_linux:*:*:*:*:*:*:*:* versions up to (excluding) 1.0.0.137
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2020-8195 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2020-8195 weaknesses.

CAPEC-3: Using Leading 'Ghost' Character Sequences to Bypass Input Filters Using Leading 'Ghost' Character Sequences to Bypass Input Filters CAPEC-7: Blind SQL Injection Blind SQL Injection CAPEC-8: Buffer Overflow in an API Call Buffer Overflow in an API Call CAPEC-9: Buffer Overflow in Local Command-Line Utilities Buffer Overflow in Local Command-Line Utilities CAPEC-10: Buffer Overflow via Environment Variables Buffer Overflow via Environment Variables CAPEC-13: Subverting Environment Variable Values Subverting Environment Variable Values CAPEC-14: Client-side Injection-induced Buffer Overflow Client-side Injection-induced Buffer Overflow CAPEC-22: Exploiting Trust in Client Exploiting Trust in Client CAPEC-23: File Content Injection File Content Injection CAPEC-24: Filter Failure through Buffer Overflow Filter Failure through Buffer Overflow CAPEC-28: Fuzzing Fuzzing CAPEC-31: Accessing/Intercepting/Modifying HTTP Cookies Accessing/Intercepting/Modifying HTTP Cookies CAPEC-42: MIME Conversion MIME Conversion CAPEC-43: Exploiting Multiple Input Interpretation Layers Exploiting Multiple Input Interpretation Layers CAPEC-45: Buffer Overflow via Symbolic Links Buffer Overflow via Symbolic Links CAPEC-46: Overflow Variables and Tags Overflow Variables and Tags CAPEC-47: Buffer Overflow via Parameter Expansion Buffer Overflow via Parameter Expansion CAPEC-52: Embedding NULL Bytes Embedding NULL Bytes CAPEC-53: Postfix, Null Terminate, and Backslash Postfix, Null Terminate, and Backslash CAPEC-63: Cross-Site Scripting (XSS) Cross-Site Scripting (XSS) CAPEC-64: Using Slashes and URL Encoding Combined to Bypass Validation Logic Using Slashes and URL Encoding Combined to Bypass Validation Logic CAPEC-67: String Format Overflow in syslog() String Format Overflow in syslog() CAPEC-71: Using Unicode Encoding to Bypass Validation Logic Using Unicode Encoding to Bypass Validation Logic CAPEC-72: URL Encoding URL Encoding CAPEC-73: User-Controlled Filename User-Controlled Filename CAPEC-78: Using Escaped Slashes in Alternate Encoding Using Escaped Slashes in Alternate Encoding CAPEC-79: Using Slashes in Alternate Encoding Using Slashes in Alternate Encoding CAPEC-80: Using UTF-8 Encoding to Bypass Validation Logic Using UTF-8 Encoding to Bypass Validation Logic CAPEC-81: Web Server Logs Tampering Web Server Logs Tampering CAPEC-83: XPath Injection XPath Injection CAPEC-85: AJAX Footprinting AJAX Footprinting CAPEC-88: OS Command Injection OS Command Injection CAPEC-101: Server Side Include (SSI) Injection Server Side Include (SSI) Injection CAPEC-104: Cross Zone Scripting Cross Zone Scripting CAPEC-108: Command Line Execution through SQL Injection Command Line Execution through SQL Injection CAPEC-109: Object Relational Mapping Injection Object Relational Mapping Injection CAPEC-110: SQL Injection through SOAP Parameter Tampering SQL Injection through SOAP Parameter Tampering CAPEC-120: Double Encoding Double Encoding CAPEC-135: Format String Injection Format String Injection CAPEC-136: LDAP Injection LDAP Injection CAPEC-153: Input Data Manipulation Input Data Manipulation CAPEC-182: Flash Injection Flash Injection CAPEC-209: XSS Using MIME Type Mismatch XSS Using MIME Type Mismatch CAPEC-230: Serialized Data with Nested Payloads Serialized Data with Nested Payloads CAPEC-231: Oversized Serialized Data Payloads Oversized Serialized Data Payloads CAPEC-250: XML Injection XML Injection CAPEC-261: Fuzzing for garnering other adjacent user/sensitive data Fuzzing for garnering other adjacent user/sensitive data CAPEC-267: Leverage Alternate Encoding Leverage Alternate Encoding CAPEC-473: Signature Spoof Signature Spoof CAPEC-588: DOM-Based XSS DOM-Based XSS CAPEC-664: Server Side Request Forgery Server Side Request Forgery CAPEC-64: Using Slashes and URL Encoding Combined to Bypass Validation Logic Using Slashes and URL Encoding Combined to Bypass Validation Logic CAPEC-76: Manipulating Web Input to File System Calls Manipulating Web Input to File System Calls CAPEC-78: Using Escaped Slashes in Alternate Encoding Using Escaped Slashes in Alternate Encoding CAPEC-79: Using Slashes in Alternate Encoding Using Slashes in Alternate Encoding CAPEC-126: Path Traversal Path Traversal
Exploit Prediction

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.

85.37 }} -4.00%

score

0.98764

percentile

CVSS31 - Vulnerability Scoring System
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
: