Category Archives: Potential Risk of CVE

CVE-2019-12439 Project Atomic Bubblewrap bubblewrap.c Arbitrary Code Execution Vulnerability – MAy 2019

Preface: With sandbox technology, Security DevOps team might have easy to conduct test. Since the user can specify exactly what parts of the filesystem should be visible in the sandbox.

Technical Background: The introduction of user namespaces in the Linux kernel has opened the doors to running containers as default user logins via e.g. ssh or desktop. Bubblewrap, a computing sandbox technology. The goal of bubblewrap is to run an application in a sandbox, where it has restricted access to parts of the operating system or user data such as the home directory. Unlike sandboxes, containers are not a time-limited solution for testing whether code is malicious.

Vulnerability details: A vulnerability in Project Atomic Bubblewrap could allow a local attacker to execute arbitrary code or cause a denial of service (DoS) condition on a targeted system. The vulnerability is due to the insecure use of the /tmp directory by the bubblewrap.c source code file of the affected software.

Remedy: Vendor released software updates at the following link https://github.com/projectatomic/bubblewrap/releases

CVE-2019-0188 Apache Camel XML External Entity Injection Vulnerability – May 2019

Preface: The computing market trending on open source development and thus its growth rapidly. Believe it or not, see how many Apache server running now.

Apache Camel background: You can use MQ (message queues) to enable applications to communicate at different times and in many diverse computing environments. This is the famous vendor proprietary toys in past decade. Until opensource born in the world especially Apache Camel. It pay the role to doing similar functions, perhaps the capability of function still under development. But it is on the way and it is free.

Vulnerability details: A vulnerability in the camel-xmljson component of Apache Camel could allow an unauthenticated, remote attacker to conduct an XML external entity injection (XXE) attack on a targeted system. It was because the affected software uses an outdated vulnerable JSON-lib library.

Remedy: Vendor released software updates at the following link – https://camel.apache.org/download.html

Previous vulnerabilities, today’s emergency alert – 1st June 2019

Preface: If the victim of cybersecurity is a defensive device? What you can do?

Background: Leading players in the Global It Asset Management (Itam) Software Market Research Report are: HP, Cherwell Software, Oracle & Dell KACE .

Vulnerability details: The Dell Kace K1000 Appliance contains multiple vulnerabilities, including a blind SQL injection vulnerability and a stored cross site scripting vulnerability.

Comment: As usual, vendor did not provide the vulnerability details. For SQL injection vulnerability. Seems has similarity of the previous vulnerability, see below:

Failure to properly filter the “macAddress” parameter values of the getUploadPath and getKBot SOAP methods can result in the injection of arbitrary SQL code to manipulate SQL queries.

Remedy: Apply patch (SEC2018_20180410) NOTE: KACE SMA versions 9.0.270 and later include these security fixes.

CVE-2019-5018 Sqlite3 Window Function Functionality Use-After-Free Vulnerability

Preface: Use-After-Free vulnerability similar animal ruminating.

Background: SQLite3 is a compact free database you can use easily create and use a database. It has become very popular with smart phone developers. SQLite runs many different computer systems such as Apple OS X, Linux, and Windows. Even though Airbus, they are the SQLite3 user.

Vulnerability details: A vulnerability in SQLite3 could allow an unauthenticated, remote attacker to execute arbitrary code on a targeted system. The vulnerability is due to a use-after-free condition in the window function functionality of the affected software. A possibility may be occurred. It let the attacker to execute arbitrary code and completely compromise the system.

Remedy: At the time this alert was first published, SQLite had not released a software update.

CVE-2019-10132 – libvirt virtlockd-admin.socket & virtlogd-admin.socket systemd Privilege Escalation Vulnerability (May 2019)

Preface: Business computing architecture now go to virtualization world, perhaps it is hard to imagine in five year ago!

Technical background: The libvirt library is used to interface with different virtualization technologies. It is accessible from C, Python, Perl, Java and more. Meanwhilethe libvirt project supports KVM, QEMU, Xen, Virtuozzo, VMWare ESX, LXC & BHyve. Libvirt’s built-in API is widely used in the virtual machine monitor orchestration layer in cloud solution development.

Vulnerability details: A vulnerability in libvirt could allow an authenticated, remote attacker to escalate privileges on a targeted system. The vulnerability exists because the virtlockd-admin.socket and virtlogd-admin.socket unit files do not set the SocketMode configuration parameter in the affected software.

Workaround: Disable the virtlockd-admin.socket and virtlogd-admin.socket units in systemd. Alternative customize them to add SocketMode=0600 locally.

Remedy: libvirt has released software updates at the following link – https://github.com/libvirt/libvirt/releases

CVE-2019-0911 Microsoft Edge and Internet Explorer Scripting Engine Memory Corruption Vulnerability – May 2019

Synopsis: As time goes by, cyber criminals formulated phishing scam through email and website visit. It seems to be a main trend. In order to avoid the attack occurs, home users installing antivirus program including malware detector, virus protection and predictive control. If web browser contains vulnerability? What we can do?

Vulnerability details:
A remote code execution vulnerability exists in the way that the script engine handles memory objects in Microsoft browsers. The vulnerability could corrupt memory and an attacker could execute arbitrary code in the context of the current user. An attacker who successfully exploited the vulnerability could gain the same user rights as the current user. If the current user is logged in with administrative user rights, an attacker who successfully exploited the vulnerability could control the affected system.

Remedy: Microsoft has released detailed information at the following link: https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-0911

CVE 2019-11634 Citrix Workspace App before 1904 for windows has incorrect access control – 22nd May 2019

Preface: VDI (Virtual Desktop Infrastructure), one of the way make your IT operations secure.

Product overview: Citrix Workspace Suite is a collection of Citrix products that deliver secure access to desktops, data, applications and services to subscribers on any device, and on any network.

Vulnerability details: Citrix Workspace App before 1904 for Windows has Incorrect Access Control.

Beginning August 2018, Citrix Receiver will be replaced by Citrix Workspace app. A vulnerability has been identified in Citrix Workspace app and Receiver for Windows that could result in local drive access preferences not being enforced allowing an attacker read/write access to the clients local drives which could enable code execution on the client device.

Remedy: Official announcement via following link – https://support.citrix.com/article/CTX251986

CVE-2019-11328 Singularity 3.1.0 to 3.2.0-rc2 defect causes privilege escalation on the host – May 2019

Preface: We might have had a debate about the definition of a powerful-enough computer to be called a supercomputer or HPC system.

Technical background:

When Docker creates a container, it creates a new instance of the above six namespaces, and then puts all the processes in the container into these namespaces, so that processes in the Docker container can only see isolated system resources.

A process is visible to other processes in its PID namespace, and to the processes in each direct ancestor PID namespace going back to the root PID namespace.

Vulnerability details: A malicious user with local/network access to the host system (e.g. ssh) could exploit this vulnerability due to insecure permissions allowing a user to edit files within /run/singularity/instances/sing//. The manipulation of those files can change the behavior of the starter-suid program when instances are joined resulting in potential privilege escalation on the host.

Remedy: Official announcement via following link – https://github.com/sylabs/singularity/releases/tag/v3.2.0

Siemens security advisory – Multiple Vulnerabilities in SIMATIC WinCC, SIMATIC WinCC Runtime,SIMATIC PCS7,SIMATIC TIA Portal (May 2019)

Preface: DCOM is a proprietary Microsoft technology for communication between software components on networked computers.

Technical background: High-Level applications use the DCOM client to obtain object references and make ORPC calls on the object. The DCOM client uses the RPC Protocol Extensions to communicate with the object server.

Vulnerability details: An authenticated attacker with network access to the DCOM interface could execute arbitrary commands with SYSTEM privileges. The vulnerability could be exploited by an attacker with network access to the affected system. Successful exploitation requires authentication with a low-privileged user account and no user interaction. Do you heard Windows Net-NTLMv2 Reflection DCOM/RPC attack technique? The key element is CLSID string. With the CLSID of each DCOM application, the script attempts to activate each one to check if there is a MemberType Property or Method that indicates a possibility to execute code. So…..

Official announcement – https://cert-portal.siemens.com/productcert/pdf/ssa-697412.pdf

RSA security advisory: CVE-2019-3724 & CVe-2019-3725 – 9th May 2019

Preface: Gartner Reports give people direction, but sometime as a customer, you can select your appropriate product on your decision. For instance cyber security product

Technical background: SIEM software products provides real-time analysis of security alerts generated by applications and network hardware. Netwitness can investigate data capture and display the real scenario on screen.It is very important in IT world nowadays.

Synopsis: RSA security product pioneer go to the market more than decade. From 2011 acquire Netwitness and conduct a product integration. It was today naming convention security analytic. It contains SIEM, real time network activities data capture (Big data) and malware analysis (ECAT). From technical point of view, the GUI (Dashboard) and web access technology looks did not have any security enhancement.

Vulnerability details: Netwitness Platform versions prior to 11.2.1.1 and RSA Security Analytics versions prior to 10.6.6.1 are vulnerable to an Authorization Bypass vulnerability and command injection vulnerability. For more details please refer to the link below:

https://community.rsa.com/docs/DOC-104202