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RHSA-2021:4619: Red Hat Security Advisory: freerdp security update

An update for freerdp is now available for Red Hat Enterprise Linux 7. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2021-41159: freerdp: improper client input validation for gateway connections allows to overwrite memory * CVE-2021-41160: freerdp: improper region checks in all clients allow out of bound write to memory

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RHSA-2021:4623: Red Hat Security Advisory: freerdp security update

An update for freerdp is now available for Red Hat Enterprise Linux 8.4 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2021-41159: freerdp: improper client input validation for gateway connections allows to overwrite memory * CVE-2021-41160: freerdp: improper region checks in all clients allow out of bound write to memory

RHSA-2021:4621: Red Hat Security Advisory: freerdp security update

An update for freerdp is now available for Red Hat Enterprise Linux 8.2 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2021-41159: freerdp: improper client input validation for gateway connections allows to overwrite memory * CVE-2021-41160: freerdp: improper region checks in all clients allow out of bound write to memory

RHSA-2021:4622: Red Hat Security Advisory: freerdp security update

An update for freerdp is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2021-41159: freerdp: improper client input validation for gateway connections allows to overwrite memory * CVE-2021-41160: freerdp: improper region checks in all clients allow out of bound write to memory

RHSA-2021:4620: Red Hat Security Advisory: freerdp security update

An update for freerdp is now available for Red Hat Enterprise Linux 8.1 Extended Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original. Related CVEs: * CVE-2021-41159: freerdp: improper client input validation for gateway connections allows to overwrite memory * CVE-2021-41160: freerdp: improper region checks in all clients allow out of bound write to memory

BlueHat is Back!

After a short hiatus, BlueHat is coming back with a vengeance! And we’ve got big plans for the entire researcher community. But first, I must apologize. It’s been a while since you have heard from us. We didn’t have BlueHat 2020 or 2021, and we know that was disappointing. It was partly due to the pandemic, where our priority was simply keeping everyone safe.

North Korean attackers use malicious blogs to deliver malware to high-profile South Korean targets: North Korean attackers use malicious blogs to deliver malware to high-profile South Korean targets

By Jung soo An and Asheer Malhotra, with contributions from Kendall McKay. Cisco Talos has observed a new malware campaign operated by the Kimsuky APT group since June 2021.Kimsuky, also known as Thallium and Black Banshee, is a North Korean state-sponsored advanced... [[ This is only the beginning! Please visit the blog for the complete entry ]]

Win32k NtGdiResetDC Use-After-Free / Local Privilege Escalation: Win32k NtGdiResetDC Use-After-Free / Local Privilege Escalation ≈ Packet Storm

A use after free vulnerability exists in the NtGdiResetDC() function of Win32k which can be leveraged by an attacker to escalate privileges to those of NT AUTHORITY\SYSTEM. The flaw exists due to the fact that this function calls hdcOpenDCW(), which performs a user mode callback. During this callback, attackers can call the NtGdiResetDC() function again with the same handle as before, which will result in the PDC object that is referenced by this handle being freed. The attacker can then replace the memory referenced by the handle with their own object, before passing execution back to the original NtGdiResetDC() call, which will now use the attacker's object without appropriate validation. This can then allow the attacker to manipulate the state of the kernel and, together with additional exploitation techniques, gain code execution as NT AUTHORITY\SYSTEM. This Metasploit module has been tested to work on Windows 10 x64 RS1 (build 14393) and RS5 (build 17763), however previous version...

Microsoft OMI Management Interface Authentication Bypass

This Metasploit module demonstrates that by removing the authentication exchange, an attacker can issue requests to the local OMI management socket that will cause it to execute an operating system command as the root user. This vulnerability was patched in OMI version 1.6.8-1 (released September 8th 2021).

Dolibarr ERP / CRM 13.0.2 Remote Code Execution

Dolibarr ERP and CRM version 13.0.2 suffer from a remote code execution vulnerability.