On 29th July 2020, a team of security researchers disclosed a high priority bug in GRUB2(GRand Unified Bootloader version 2) , affecting billions of Linux and Windows systems using secure boot. CVE-2020-10713 is assigned to this buffer overflow vulnerability, termed as “Boothole”. “Boothole” Secure Boot is designed to verify all the firmware of the computer … Continue reading “GRUB2 Boothole Buffer Overflow Vulnerability (CVE-2020-10713)”
Tag: Oracle
Oracle Solaris Local Privilege Escalation Vulnerability (CVE-2020-2944)
Summary: An unusual buffer overflow vulnerability. that allows LPE was observed prior to April’s PT (patch-tuesday) in various Oracle Solaris platform. The researcher have published a POC publicly that was acclaimed by Oracle as well for CVE-2020-2944. Description: A buffer overflow in the _SanityCheck() function in the Common Desktop Environment version distributed with Oracle Solaris … Continue reading “Oracle Solaris Local Privilege Escalation Vulnerability (CVE-2020-2944)”
Oracle WebLogic Server deserialization bug to remote code execution vulnerability (CVE-2020-2555)
Summary: Oracle WebLogic Server is a Java EE application server currently developed by Oracle Corporation. In the Oracle Critical Patch Update Advisory – January 2020, Oracle officially fixed a high-risk vulnerability (CVE-2020-2555) that affect to Oracle Coherence library in Oracle WebLogic Server. Description: Easily exploitable vulnerability allows unauthenticated attacker with network access via T3 protocol to … Continue reading “Oracle WebLogic Server deserialization bug to remote code execution vulnerability (CVE-2020-2555)”
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”
Oracle WebLogic Deserialization Vulnerability : CVE-2018-2628
A deserialization vulnerability was discovered in Oracle WebLogic server’s core components. Upon successful exploitation an attacker can take control of the target server. The exploit targets the server by sending a custom serialized object using T3 protocol and achieves remote arbitrary code execution. T3 and T3S(T3 over TLS) protocol is used to exchange data between … Continue reading “Oracle WebLogic Deserialization Vulnerability : CVE-2018-2628”