An Integer overflow vulnerability has been disclosed by Qualys Research Labs. The vulnerability is assigned CVE-2018-14634. The issue affects kernels with commit b6a2fea39318 without da029c11e6b1. Red Hat Enterprise Linux and CentOS are vulnerable. Upon successful exploitation a local attacker can gain root privileges on the target machine. A PoC is available online. Red Hat has addressed this … Continue reading “Integer Overflow in create_elf_tables() : CVE–2018-14634”
Author: Deepak Shanker
Microsoft Windows Jet Database Engine Out-Of-Bounds Write Vulnerability: CVE-2018-8423
An Out-of-Bounds write vulnerability was disclosed to Microsoft. The issue affects Microsoft JET Database engine. Upon successful exploitation an attacker can gain code execution (current process context) on the target machine. To trigger this vulnerability, the target user needs to open a crafted file containing data stored in JET database format. Many Windows application use the … Continue reading “Microsoft Windows Jet Database Engine Out-Of-Bounds Write Vulnerability: CVE-2018-8423”
OpenSSH User name Enumeration Vulnerability : CVE-2018-15473
OpenSSH is vulnerable to user enumeration attack. The issue affects all versions through 7.7. The vulnerability is tracked via CVE-2018-15473. Upon successful exploitation an attacker can test validity of usernames based on the target servers response. This information can be exploited in various ways depending upon the attackers resources, capabilities and the target scenario. PoC‘s exploiting … Continue reading “OpenSSH User name Enumeration Vulnerability : CVE-2018-15473”
L1 Terminal Fault /Foreshadow Attack aka L1TF Attack
A new class of hardware vulnerabilities have been discovered in Intel processors. Upon exploitation a malicious code can achieve information disclosure that can be used for further exploitation .This vulnerability affects Intel Core processors and Intel Xeon processors, please check here for a complete list of affected processors . Intel has addressed this issue in INTEL-SA-00161. … Continue reading “L1 Terminal Fault /Foreshadow Attack aka L1TF Attack”
Apache Struts 2 namespace Remote Code Execution Vulnerability: CVE-2018-11776
A remote code execution vulnerability was discovered in Apache Struts 2. The vulnerability in being tracked via CVE-2018-11776. Upon successful exploitation an attacker can gain remote execution on the target and ultimately take over the target machine. The issue affect all versions of Apache Struts 2, possibly even fixed versions where the settings are mis-configured. Apache has … Continue reading “Apache Struts 2 namespace Remote Code Execution Vulnerability: CVE-2018-11776”
VBScript Engine Use-After-Free Vulnerability : CVE-2018-8373
A use-after-free (UAF) vulnerability has been discovered in the Windows VBScript engine. Upon successful exploitation an attacker can achieve remote code execution on the target. CVE-2018-8373 has been assigned to track this vulnerability. CVE-2018-8373 is being exploited in the wild similar to CVE-2018-8174. The issue affects Internet explorer 9-11 unless VBScript is disabled by default. … Continue reading “VBScript Engine Use-After-Free Vulnerability : CVE-2018-8373”
SegmentSmack: CVE-2018-5390
Linux kernel versions 4.9+ are vulnerable to Denial of Service attacks due to a resource exhaustion vulnerability. The issue is being tracked via CVE-2018-5390. The vulnerability has been named SegmentSmack. An attacker can exploit this bug by triggering expensive calls to tcp_collapse_ofo_queue() and tcp_prune_ofo_queue(). The attacker needs to send crafted TCP packets within already established TCP … Continue reading “SegmentSmack: CVE-2018-5390”
Oracle WebLogic Deserialization Vulnerability : CVE-2018-2893
A deserialization vulnerability in Oracle WebLogic has been disclosed by multiple 3rd party researchers and organizations. The vulnerability allows unauthenticated attackers to compromise WebLogic server via T3 protocol. The affected component is WLS Core components. Upon successful exploitation an attacker can take over the target server via remote code execution .CVE-2018-2893 has been assigned to … Continue reading “Oracle WebLogic Deserialization Vulnerability : CVE-2018-2893”
Oracle WebLogic Remote Upload Vulnerability : CVE-2018-2894
In the month of July 2018 Oracle had released advisory addressing many vulnerabilities in its suit of products. In this post will discuss about CVE-2018-2894. It is a remote file upload vulnerability in WebLogic server due to improper authentication enforcement. Normally this page should not be accessible without authentication. The affected versions are 10.3.6.0, 12.1.3.0, 12.2.1.2, … Continue reading “Oracle WebLogic Remote Upload Vulnerability : CVE-2018-2894”
Intel LazyFP Vulnerability : CVE-2018-3665
An information disclosure vulnerability has been disclosed in Intel Microprocessors. Lazy restored FP states are susceptible to speculative execution cache side-channel attacks, A process can infer FPU registry (AVX, MMX and SSE) values of other processes. CVE-2018-3665 has been assigned to track this issue. It does not affect AMD processors. Intel has addressed this vulnerability in … Continue reading “Intel LazyFP Vulnerability : CVE-2018-3665”