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March 22, 2023Severity Medium Analysis Summary Mekotio is a banking trojan that targets users in Latin America and Europe. It is primarily distributed via phishing emails and infected […]March 22, 2023Analysis Summary Overview – 23rd Mar – A Big Day – As we approach the 23rd of March, Pakistan Day, organizations and individuals should be aware […]March 22, 2023Severity High Analysis Summary CVE-2023-28684 CVSS:7.1 Jenkins remote-jobs-view-plugin Plugin could allow a remote authenticated attacker to obtain sensitive information, caused by improper handling of XML external […]Threat Insights
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Platform
Managed Security Services
Managed Penetration Testing
Rewterz penetration testing services help organizations determine if a cyber attacker can gain access to their critical assets while giving them detailed insights of the overall business impact of a cyber attack.
Resources
March 22, 2023Severity Medium Analysis Summary Mekotio is a banking trojan that targets users in Latin America and Europe. It is primarily distributed via phishing emails and infected […]March 22, 2023Analysis Summary Overview – 23rd Mar – A Big Day – As we approach the 23rd of March, Pakistan Day, organizations and individuals should be aware […]March 22, 2023Severity High Analysis Summary CVE-2023-28684 CVSS:7.1 Jenkins remote-jobs-view-plugin Plugin could allow a remote authenticated attacker to obtain sensitive information, caused by improper handling of XML external […]Threat Insights
Before Rewterz got its start, the market was in dire need of a specialized and dedicated information security company. It was nearly impossible for businesses to find a trustworthy provider that could truly cover all of their bases. We wanted to meet this need, giving companies across the globe a chance to get ahead while knowing that their data is in good hands.
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Rewterz Threat Advisory – Exploitation of automatic DNS registration and auto-discovery
September 6, 2018
Internal Attacks and their Impact on Organizations
September 8, 2018
Oracle has issued an update for kernel-uek included in Oracle VM Server for x86 for fixing multiple vulnerabilities.
IMPACT: NORMAL
PUBLISH DATE: 06-09-2018
OVERVIEW
Oracle VM Server 3.x was detected to have multiple vulnerabilities which may lead to Denial of Service, unauthorized exposure of sensitive information or Security Bypass attacks by users with malicious intents. Oracle has issued an update that patches the mentioned vulnerabilities.
ANALYSIS
Below is a brief summary of the vulnerabilities addressed in this update.
CVE-2018-13405
Local users are allowed to create files with an unintended group ownership by the inode_init_owner function in fs/inode.c in the Linux kernel through 4.17.4. This happens in a scenario where a directory is SGID to a certain group and is writable by a non-member user, who can trigger creation of a plain file (intended to be a directory) whose group ownership is that group. If the non-member makes that plain file executable and SGID, it’ll lead to privilege escalation.
CVE-2018-10021
Local users are allowed to cause a denial of service by drivers/scsi/libsas/sas_scsi_host.c in the Linux kernel before 4.16, (ata qc leak) by triggering certain failure conditions.
NOTE: This report is objected on by a third party who claims that only physically proximate attackers can cause the failure who unplug SAS Host Bus Adapter cables.
CVE-2018-10938
A flaw was found in the Linux kernel present since v4.0-rc1 and through v4.13-rc4. The kernel may be forced to enter an infinite loop in the cipso_v4_optptr() function in net/ipv4/cipso_ipv4.c if an attacker remotely sends a crafted network packet. This leads to a denial-of-service. For an attacker to leverage this flaw, a certain non-default configuration of LSM (Linux Security Module) and NetLabel is required.
CVE-2018-15594
It’s easier for attackers to conduct Spectre-v2 attacks against paravirtual guests because arch/x86/kernel/paravirt.c in the Linux kernel before 4.18.1 mishandles certain indirect calls.
AFFECTED PRODUCT
Oracle VM Server 3.x
UPDATE
Apply updated packages concerning Oracle VM Server for x86 version 3.4.
Follow the links for help:
https://docs.oracle.com/cd/E64076_01/E64078/html/vmiug-upgrading-ovs-three-three.html
https://docs.oracle.com/html/E50247_08/vmiug-server-upgrading.html