Cisco Prime License Manager SQL Injection Vulnerability – 28th Nov 2018


Preface: Cisco Prime License Manager provides simplified, enterprise-wide management of user-based licensing, including license fulfillment. Cisco Prime License Manager handles licensing fulfillment, supports allocation and reconciliation of licenses across supported products, and provides enterprise-level reporting of usage and entitlement.

Vulnerability synopsis:
A vulnerability in the web framework code of Cisco Prime License Manager (PLM) could allow an unauthenticated, remote attacker to execute arbitrary SQL queries.

Official announcement:

Samba release security update – 27th Nov 2018

Preface: Samba is an implementation of the Server Message Block (SMB)/Common Internet File System (CIFS) protocol for Unix systems, providing support for cross-platform file and printer sharing with Microsoft Windows, OS X, and other Unix.

Vulnerabilities highlights:
Double free error is caused by freeing same memory location twice by calling free() on the same allocated memory. A NULL pointer dereference is a sub type of an error causing a segmentation fault. It occurs when a program attempts to read or write to memory with a NULL pointer. This design limitation was happen in a lot of software application. Found above vulnerabilities occurs in Samba server. For more details, please refer below:

Unprivileged adding of CNAME record causing loop in AD Internal DNS server :

Double-free in Samba AD DC KDC with PKINIT

NULL pointer de-reference in Samba AD DC LDAP server

NULL pointer de-reference in Samba AD DC DNS servers

Samba AD DC S4U2Self Crash in experimental MIT Kerberos configuration (unsupported)

Bad password count in AD DC not always effective


CVE-2018-18955 kernel: Privilege escalation in map_write() in kernel/user_namespace.c

Preface: Linux makes very efficient use of the system’s resources.You can give new life to your old and slow Windows system by installing a lightweight Linux system. Variants of Linux are most widely used in the Internet of things and smart devices.

Vulnerability synopsis:
Namespaced mapping – when the two sorted arrays are used, the new code omits the ID transformation for the kernel . Found design flaw in kernel that DAC security controls on files whose IDs aren’t mapped in namespace.
So, user who has CAP_SYS_ADMIN in an affected user namespace can bypass access controls on resources outside the namespace.

Official details:

Comment: The Linux operating system is heavily used in modern computer equipment. Will it have an impact soon?


He is a bird – Taiwan supercomputer (Nov 2018)

Preface: There are many reasons for wanting to combine the two parallel programming approaches of MPI and CUDA. A common reason is to enable solving problems with a data size too large to fit into the memory of a single GPU, or that would require an unreasonably long compute time on a single node. The message passing interface (MPI) architecture successful exchanging messages between multiple computers running a parallel program across distributed memory. Thereby single system can group together form a big power.

The open source refers to any program whose source code is made available for public use. Open MPI is a Message Passing Interface library project combining technologies and resources from several other projects. Meanwhile it is a potential power driving the technology world in this century. It is hard to imagine that Xeon processor type computer machine will go to supercomputers world. With assist of QuantaGrid D52G-4U GPU. The dream come true now. Tesla V100 can deliver up to 896 tensor Tflops to training deep learning model with 8 NVIDIA Tesla V100 (dual-width 10.5″). Taiwania 2 supercomputer take the role to handle big data , AI and scientific research functions.


Supercomputer – You focus the speed of CPU, but my design goal is efficiency (Nov 2018)


The art of driving a car in a race comes from the ability to maximize the performance of the car. Everything you do on a track takes skill when you are reaching the limits of performance. This concept also suitable on computer design.

Japan supercomputer rating:

Fujitsu ranks supercomputers seventh in the world.

Cores: 391,680

Memory: 417,792 GB

Processor: Xeon Gold 6148 20C 2.4GHz

Historical background:

The traditional supercomputer architecture contains HIGH SPEED VECTOR PROCESSORS, crossbar switch, LPARs architecture. Since CPU speed is most important element on calculation. Meanwhile LPARs design can let system allocate the function feature and requirements.
Remark: Logical partitions (LPARs) are, in practice, equivalent to separate mainframes.


But the military, scientific and public safety requirements of the world in today more demanding. The traditional Supercomputer LPARs design still have space for improvement. And therefore Linux high performance cluster and docker infrastructure become a key components. It boostup the system efficiency. Even though Fujitsu ranks supercomputers seventh in the world. But it maximum the efficiency.

CVE-2018-6983 VMware Workstation and Fusion updates address an integer overflow issue – 22nd Nov 2018

VMware Workstation is a hosted hypervisor that runs on x64 versions of Windows and Linux operating systems[4] (an x86 version of earlier releases was available);[3] it enables users to set up virtual machines (VMs) on a single physical machine, and use them simultaneously along with the actual machine.

VMware Workstation and Fusion contain an integer overflow vulnerability in the virtual network devices. This issue may allow a guest to execute code on the host.

Official announcement and Remedy:

Since the public announcement did not provide the technical details. However I suspected that a design weakness on True type font parser (embedded in the TPView.dll) not been remediated. The similar vulnerability found last year. The CVE reference number is CVE-2017-4913.

Remark: Be a happy black Friday but not for this vulnerability. Yes, this is the shopping on AWS,..etc. Happy hunting.

The amazon PAYFORT payfort-php-SDK payment gateway SDK vulnerabilities – 14th Nov 2018

PAYFORT Online Payment Gateway is the most Trusted in the Middle East. PAYFORT is here to help you accept online payments, reduce fraud & max your transaction amount.
Remark: On Mar 2018, official announce that PayFort International Inc. and its subsidiaries will be acquired by Amazon.

Vulnerabilities synopsis:
The Amazon PAYFORT payfort-php-SDK payment gateway SDK through 2018-04-26 has XSS vulnerabilities occurs!

What is Cross-site Scripting (XSS)?
Cross-site Scripting (XSS) refers to client-side code injection attack wherein an attacker can execute malicious scripts (also commonly referred to as a malicious payload) into a legitimate website or web application.

One of the most common XSS attack vectors is to hijack legitimate user accounts by stealing their session cookies. This allows attackers to impersonate victims and access any sensitive information or functionality on their behalf.

The vulnerability details can be found in the following URL:

CVE-2018-0692 – The installer of Baidu Browser may insecurely load Dynamic Link Libraries


Baidu Spark Browser is based on Chromium, the same engine which runs Google Chrome.

Vulnerability findings:
Baidu Browser provided by Baidu, Inc. is a Web browser. The installer of Baidu Browser contains an issue with the DLL search path, which may lead to insecurely loading Dynamic Link Libraries.

Arbitrary code may be executed with the privilege of the user invoking the installer.

The threat actor can placing a malicious version of the dll file in the “C:\Program Files (x86)\baidu\spark\” folder. When the victim starts the browser, the browser execute file will load the malicious version of dll library file. How does the malicious dll file implant? It looks that a reserve engineering was happened in the original installer.

Reference URL:

VMware Releases Security Updates – November 20, 2018

vSphere Data Protection is a backup and recovery solution designed for vSphere environments.It provides agentless, image-level virtual-machine backups to disk.
VMware vSphere 6.5 is the last release which includes the VDP product. All existing vSphere Data Protection installations with active Support and Subscription (SnS) will continue to be supported until their End of General Support (EOGS) date.

Vulnerability findings:
An attacker could exploit some of these vulnerabilities in VDP and thus to take control of an affected system.

Official remedy solution (see below URL):

Appendix: VMware vSphere 6.5 is the last release which includes the VDP product. Meanwhile VMware announced the End of Availability (EOA) of the VMware vSphere Data Protection (VDP) product on April 5th, 2017. (See below URL)

Status update – Multiple Vulnerabilities in Some ZTE CPE Terminal Products 19th Nov 2018

Preface: GPON stands for Gigabit Passive Optical Networks. GPON is defined by ITU-T recommendation series G.984.1 through G.984.6.

ZTE model F670 is a GPON Optical Network Terminal designed for Fiber to the home (FTTH) scenario. Therefore, it is very popular in today’s Internet home use.

Vulnerability findings:
Some ZTE CPE terminal products encountered below vulnerability. For more detail please refer to official announcement.
1. Heap-based buffer overflow vulnerability, which may allow an attacker to execute arbitrary code.
2. May allow an unauthenticated attacker to get the GPON SN information via appviahttp service.
3. May allows an attacker to cause a denial of service via appviahttp service.
4. May allows an unauthorized user to perform unauthorized operations on the router.
5. An attacker can be allowed to brute force account credentials.

Vulnerabilities and remedy details:

Comments: We aware that there are plenty of IoT devices expose their vulnerabilities on internet. It such a way to let the cyber criminals form their cyber attack army (Botnet). So staying alert and following the vendor recommendation to execute the remedy.