Multiple vulnerabilities in the Citrix Application Delivery Controller (ADC) and Gateway would allow code injection, information disclosure and denial of service, the networking vendor announced Tuesday. Four of the bugs are exploitable by an unauthenticated, remote attacker.
The Citrix products (formerly known as NetScaler ADC and Gateway) are used for application-aware traffic management and secure remote access, respectively, and are installed in at least 80,000 companies in 158 countries, according to a December assessment from Positive Technologies.
Other flaws announced Tuesday also affect Citrix SD-WAN WANOP appliances, models 4000-WO, 4100-WO, 5000-WO and 5100-WO.
Attacks on the management interface of the products could result in system compromise by an unauthenticated user on the management network; or system compromise through cross-site scripting (XSS). Attackers could also create a download link for the device which, if downloaded and then executed by an unauthenticated user on the management network, could result in the compromise of a local computer.
“Customers who have configured their systems in accordance with Citrix recommendations [i.e., to have this interface separated from the network and protected by a firewall] have significantly reduced their risk from attacks to the management interface,” according to the vendor.
Threat actors could also mount attacks on Virtual IPs (VIPs). VIPs, among other things, are used to provide users with a unique IP address for communicating with network resources for applications that do not allow multiple connections or users from the same IP address.
The VIP attacks include denial of service against either the Gateway or Authentication virtual servers by an unauthenticated user; or remote port scanning of the internal network by an authenticated Citrix Gateway user.
“Attackers can only discern whether a TLS connection is possible with the port and cannot communicate further with the end devices,” according to the critical Citrix advisory. “Customers who have not enabled either the Gateway or Authentication virtual servers are not at risk from attacks that are applicable to those servers. Other virtual servers e.g. load balancing and content switching virtual servers are not affected by these issues.”
A final vulnerability has been found in Citrix Gateway Plug-in for Linux that would allow a local logged-on user of a Linux system with that plug-in installed to elevate their privileges to an administrator account on that computer, the company said.
#vulnerabilities #adc #citrix #code injection #critical advisory #cve-2020-8187 #cve-2020-8190 #cve-2020-8191 #cve-2020-8193 #cve-2020-8194 #cve-2020-8195 #cve-2020-8196 #cve-2020-8197 #cve-2020-8198 #cve-2020-8199 #denial of service #gateway #information disclosure #patches #security advisory #security bugs
Everything around us has become smart, like smart infrastructures, smart cities, autonomous vehicles, to name a few. The innovation of smart devices makes it possible to achieve these heights in science and technology. But, data is vulnerable, there is a risk of attack by cybercriminals. To get started, let’s know about IoT devices.
The Internet Of Things(IoT) is a system that interrelates computer devices like sensors, software, and actuators, digital machines, etc. They are linked together with particular objects that work through the internet and transfer data over devices without humans interference.
Famous examples are Amazon Alexa, Apple SIRI, Interconnected baby monitors, video doorbells, and smart thermostats.
When technologies grow and evolve, risks are also on the high stakes. Ransomware attacks are on the continuous increase; securing data has become the top priority.
When you think your smart home won’t fudge a thing against cybercriminals, you should also know that they are vulnerable. When cybercriminals access our smart voice speakers like Amazon Alexa or Apple Siri, it becomes easy for them to steal your data.
Cybersecurity report 2020 says popular hacking forums expose 770 million email addresses and 21 million unique passwords, 620 million accounts have been compromised from 16 hacked websites.
The attacks are likely to increase every year. To help you secure your data of IoT devices, here are some best tips you can implement.
Your router has the default name of make and model. When we stick with the manufacturer name, attackers can quickly identify our make and model. So give the router name different from your addresses, without giving away personal information.
If your devices are connected to the internet, these connections are vulnerable to cyber attacks when your devices don’t have the proper security. Almost every web interface is equipped with multiple devices, so it’s hard to track the device. But, it’s crucial to stay aware of them.
When we use the default usernames and passwords, it is attackable. Because the cybercriminals possibly know the default passwords come with IoT devices. So use strong passwords to access our IoT devices.
Use strong or unique passwords that are easily assumed, such as ‘123456’ or ‘password1234’ to protect your accounts. Give strong and complex passwords formed by combinations of alphabets, numeric, and not easily bypassed symbols.
Also, change passwords for multiple accounts and change them regularly to avoid attacks. We can also set several attempts to wrong passwords to set locking the account to safeguard from the hackers.
Are you try to keep an eye on your IoT devices through your mobile devices in different locations. I recommend you not to use the public WI-FI network to access them. Because they are easily accessible through for everyone, you are still in a hurry to access, use VPN that gives them protection against cyber-attacks, giving them privacy and security features, for example, using Express VPN.
There are software and firewalls like intrusion detection system/intrusion prevention system in the market. This will be useful to screen and analyze the wire traffic of a network. You can identify the security weakness by the firewall scanners within the network structure. Use these firewalls to get rid of unwanted security issues and vulnerabilities.
Every smart device comes with the insecure default settings, and sometimes we are not able to change these default settings configurations. These conditions need to be assessed and need to reconfigure the default settings.
Nowadays, every smart app offers authentication to secure the accounts. There are many types of authentication methods like single-factor authentication, two-step authentication, and multi-factor authentication. Use any one of these to send a one time password (OTP) to verify the user who logs in the smart device to keep our accounts from falling into the wrong hands.
Every smart device manufacturer releases updates to fix bugs in their software. These security patches help us to improve our protection of the device. Also, update the software on the smartphone, which we are used to monitoring the IoT devices to avoid vulnerabilities.
When we connect the smart home to the smartphone and control them via smartphone, you need to keep them safe. If you miss the phone almost, every personal information is at risk to the cybercriminals. But sometimes it happens by accident, makes sure that you can clear all the data remotely.
However, securing smart devices is essential in the world of data. There are still cybercriminals bypassing the securities. So make sure to do the safety measures to avoid our accounts falling out into the wrong hands. I hope these steps will help you all to secure your IoT devices.
If you have any, feel free to share them in the comments! I’d love to know them.
Are you looking for more? Subscribe to weekly newsletters that can help your stay updated IoT application developments.
#iot #enterprise iot security #how iot can be used to enhance security #how to improve iot security #how to protect iot devices from hackers #how to secure iot devices #iot security #iot security devices #iot security offerings #iot security technologies iot security plus #iot vulnerable devices #risk based iot security program
Google’s latest version of its browser, Chrome 86, is now being rolled out with 35 security fixes – including a critical bug – and a feature that checks if users have any compromised passwords.
As of Tuesday, Chrome 86 is being promoted to the stable channel for Windows, Mac and Linux and will roll out over the coming days. The versions of the browser for Android and iOS were also released Tuesday, and will become available on Google Play and the App Store this week.
Included in the newest browser version is a critical flaw (CVE-2020-15967) existing in Chrome’s payments component. The flaw, reported by Man Yue Mo of GitHub Security Lab, is a use-after-free vulnerability. Use after free is a memory-corruption flaw where an attempt is made to access memory after it has been freed. This can cause an array of malicious impacts, from causing a program to crash, to potentially leading to execution of arbitrary code.
Use-after-free bugs have plagued Google Chrome in the past year. In fact, all seven high-severity vulnerabilities fixed by Google in Chrome 86 were use-after-free flaws – ranging from ones affecting Chrome’s printing (CVE-2020-15971), audio (CVE-2020-15972), password manager (CVE-2020-15991) and WebRTC (CVE-2020-15969) components (WebRTC is a protocol for rich-media web communication).
Further details of the bugs are not yet available, as “access to bug details and links may be kept restricted until a majority of users are updated with a fix,” according to Google’s Tuesday post.
The Android and iOS versions of Chrome 86 will also come with a new security feature, which will send a copy of user’s usernames and passwords using a “special form of encryption.” That then lets Google check them against list of passwords known to be compromised.
“Passwords are often the first line of defense for our digital lives,” Abdel Karim Mardini, senior product manager with Chrome, said in a Tuesday post. “Today, we’re improving password security on both Android and iOS devices by telling you if the passwords you’ve asked Chrome to remember have been compromised, and if so, how to fix them.”
At the back end, when Google detects a username and password exposed by a data breach, it stores a strongly hashed and encrypted copy of the data. Then, when Chrome users log into a website, the feature sends a strongly hashed and encrypted version of their username and password to Google – meaning the company never derives usernames or passwords from the encrypted copy, it said.
#vulnerabilities #web security #android #chrome #chrome 86 #compromised password #credential stuffing #cve-2020-15967 #cve-2020-15969 #cve-2020-15971 #cve-2020-15972 #cve-2020-15991 #encryption #google #google payments #https #ios #linux #mac #password check #patches #safety check #security fix #security improvements #windows
Cisco has stomped out a slew of high-severity vulnerabilities across its lineup of network-security products. The most severe flaws can be exploited by an unauthenticated, remote attacker to launch a passel of malicious attacks — from denial of service (DoS) to cross-site request forgery (CSRF).
The vulnerabilities exist in Cisco’s Firepower Threat Defense (FTD) software, which is part of its suite of network-security and traffic-management products; and its Adaptive Security Appliance (ASA) software, the operating system for its family of ASA corporate network-security devices.
“The Cisco Product Security Incident Response Team is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory,” according to Cisco in an update released on Wednesday.
The most severe of these flaws includes a vulnerability in Cisco Firepower Chassis Manager (FCM), which exists in the Firepower Extensible Operating System (FXOS) and provides management capabilities.
The flaw (CVE-2020-3456) ranks 8.8 out of 10 on the CVSS scale, and stems from insufficient CSRF protections in the FCM interface. It could be exploited to enable CSRF — which means that when attackers are authenticated on the server, they also have control over the client.
“An attacker could exploit this vulnerability by persuading a targeted user to click a malicious link,” according to Cisco. “A successful exploit could allow the attacker to send arbitrary requests that could take unauthorized actions on behalf of the targeted user.”
Cisco FXOS Software is affected when it is running on Firepower 2100 Series Appliances (when running ASA Software in non-appliance mode), Firepower 4100 Series Appliances and Firepower 9300 Series Appliances.
Four other high-severity vulnerabilities across Cisco’s Firepower brand could be exploited by an unauthenticated, remote attacker to cripple affected devices with a DoS condition. These include a flaw in Firepower’s Management Center Software (CVE-2020-3499), Cisco Firepower 2100 Series firewalls (CVE-2020-3562), Cisco Firepower 4110 appliances (CVE-2020-3571) and Cisco Firepower Threat Defense Software (CVE-2020-3563 and CVE-2020-3563).
Cisco also patched multiple DoS flaws in its Adaptive Security Appliance software, including ones tied to CVE-2020-3304, CVE-2020-3529, CVE-2020-3528, CVE-2020-3554, CVE-2020-3572and CVE-2020-3373 that could allow an unauthenticated, remote attacker to cause an affected device to reload unexpectedly.
Another flaw of note, in the web services interface of Cisco Adaptive Security Appliance and Firepower Threat Defense, could allow an unauthenticated, remote attacker to upload arbitrary-sized files to specific folders on an affected device, which could lead to an unexpected device reload.
The flaw stems from the software not efficiently handling the writing of large files to specific folders on the local file system.
The new security alerts come a day after Cisco sent out an advisory warning that a flaw (CVE-2020-3118) the Cisco Discovery Protocol implementation for Cisco IOS XR Software was being actively exploited by attackers. The bug, which could be exploited by unauthenticated, adjacent attackers, could allow them to execute arbitrary code or cause a reload on an affected device.
#vulnerabilities #web security #adaptive security appliance #bugs #cisco #cross-site request forgery #csrf #cve-2020-3456 #cve-2020-3499 #cve-2020-3562 #cve-2020-3563 #cve-2020-3571 #denial of service #dos #firepower threat defense #patches #security vulnerabilities
Only about half of enterprises are satisfied with their ability to detect cybersecurity threats, according to a survey from Forrester Consulting – with respondents painting a picture of major resource and technology gaps hamstringing their efforts to block cyberattacks.
According to the just-released 2020 State of Security Operations survey of 314 enterprise security professionals, enterprise security teams around the world feel that they struggle with the growing pace, volume and sophistication of cyberattacks. A whopping 79 percent of enterprises covered in the survey have experienced a cyber-breach in the past year, and nearly 50 percent have been breached in the past six months.
#cloud security #hacks #malware #most recent threatlists #uncategorized #web security #2020 #automated triage #enterprise security #forrester consulting #manual processes #secops #security alerts #security defense #state of security operations #survey #workforce skills gap