Dark Reading is part of the Informa Tech Division of Informa PLC

This site is operated by a business or businesses owned by Informa PLC and all copyright resides with them.Informa PLC's registered office is 5 Howick Place, London SW1P 1WG. Registered in England and Wales. Number 8860726.

Cloud

2/6/2020
05:10 PM
Dark Reading
Dark Reading
Products and Releases
50%
50%

One out of Every Five Companies Failed to Fix Vulnerability in the Citrix Software, Making the Internal Network Breachable within a Minute

Framingham, MA (February 6, 2020) -- A month and a half after Positive Technologies released its overview of a critical vulnerability in Citrix software that was endangering 80,000 companies in 158 countries, one out of every five companies have still not taken any action to fix this vulnerability. This is evident from threat intelligence from Positive Technologies.

Critical vulnerability CVE-2019-19781 in Citrix Application Delivery Controller (NetScaler ADC)[1] and Citrix Gateway (NetScaler Gateway) was discovered in December by Positive Technologies expert Mikhail Klyuchnikov. According to Positive Technologies data as of the end of 2019, the greatest number of potentially vulnerable organizations is located in the USA (over 38% of all vulnerable organizations), as well as in Germany, Great Britain, the Netherlands, and Australia. On January 8, 2020, an exploit was released. It allows a potential attacker to perform automatic attacks against companies that failed to fix the vulnerability.

“The Citrix developers planned to resolve the issue on January 27 through January 31, but released a series of patches for various product versions a week before that. The necessary update must be installed as soon as possible. Until then, follow the security recommendations by Citrix, available since the information about the vulnerability was released,” says Alexei Novikov, Director of PT Expert Security Center.

Overall, the vulnerability is being fixed quickly, but 19% of companies are still at risk. The countries with the greatest numbers of vulnerable companies currently include Brazil (43% of all companies where the vulnerability was originally detected), China (39%), Russia (35%), France (34%), Italy (33%), and Spain (25%). The USA, Great Britain, and Australia are protecting themselves quicker, but they each have 21% of companies still using vulnerable devices without any protection measures.

Once again, if the vulnerability is exploited, attackers obtain direct access to the company's local network from the Internet. This attack does not require access to any accounts, and therefore can be performed by any external attacker.

To fend off potential attacks, companies can use web application firewalls. For example, PT Application Firewall can detect this attack out of the box. The system must be set to block all dangerous requests to ensure protection in real time. Considering how long this vulnerability has been around (since the first vulnerable version of the software was released in 2014), detecting potential exploitation of this vulnerability (and, therefore, infrastructure compromise) retrospectively becomes just as important. Starting December 18, 2019, PT Network Attack Discoveryusers can use special rules detecting attempts to exploit this vulnerability online.

 

Positive Technologies is a leading global provider of enterprise security solutions for vulnerability and compliance management, incident and threat analysis, and application protection. Commitment to clients and research has earned Positive Technologies a reputation as one of the foremost authorities on Industrial Control System, Banking, Telecom, Web Application, and ERP security, supported by recognition from the analyst community. Read more at ptsecurity.com, facebook.com/PositiveTechnologies, facebook.com/PHDays, twitter.com/ptsecurity

 

 

CONTACT:  

Paula Dunne

CONTOS DUNNE COMMUNICATIONS 

+1-408-893-8750 (m)

+1-408-776-1400 (o)

[email protected]

 

 

Recommended Reading:

Comment  | 
Print  | 
More Insights
Comments
Newest First  |  Oldest First  |  Threaded View
COVID-19: Latest Security News & Commentary
Dark Reading Staff 7/13/2020
Omdia Research Launches Page on Dark Reading
Tim Wilson, Editor in Chief, Dark Reading 7/9/2020
Russian Cyber Gang 'Cosmic Lynx' Focuses on Email Fraud
Kelly Sheridan, Staff Editor, Dark Reading,  7/7/2020
Register for Dark Reading Newsletters
White Papers
Video
Cartoon
Current Issue
Special Report: Computing's New Normal, a Dark Reading Perspective
This special report examines how IT security organizations have adapted to the "new normal" of computing and what the long-term effects will be. Read it and get a unique set of perspectives on issues ranging from new threats & vulnerabilities as a result of remote working to how enterprise security strategy will be affected long term.
Flash Poll
The Threat from the Internetand What Your Organization Can Do About It
The Threat from the Internetand What Your Organization Can Do About It
This report describes some of the latest attacks and threats emanating from the Internet, as well as advice and tips on how your organization can mitigate those threats before they affect your business. Download it today!
Twitter Feed
Dark Reading - Bug Report
Bug Report
Enterprise Vulnerabilities
From DHS/US-CERT's National Vulnerability Database
CVE-2020-11749
PUBLISHED: 2020-07-13
Pandora FMS 7.0 NG <= 746 suffers from Multiple XSS vulnerabilities in different browser views. A network administrator scanning a SNMP device can trigger a Cross Site Scripting (XSS), which can run arbitrary code to allow Remote Code Execution as root or apache2.
CVE-2020-5766
PUBLISHED: 2020-07-13
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') in SRS Simple Hits Counter Plugin for WordPress 1.0.3 and 1.0.4 allows a remote, unauthenticated attacker to determine the value of database fields.
CVE-2020-15689
PUBLISHED: 2020-07-13
Appweb before 7.2.2 and 8.x before 8.1.0, when built with CGI support, mishandles an HTTP request with a Range header that lacks an exact range. This may result in a NULL pointer dereference and cause a denial of service.
CVE-2019-4591
PUBLISHED: 2020-07-13
IBM Maximo Asset Management 7.6.0 and 7.6.1 does not invalidate session after logout which could allow a local user to impersonate another user on the system. IBM X-Force ID: 167451.
CVE-2019-20907
PUBLISHED: 2020-07-13
In Lib/tarfile.py in Python through 3.8.3, an attacker is able to craft a TAR archive leading to an infinite loop when opened by tarfile.open, because _proc_pax lacks header validation.