Sys-Admin InfoSec

17 Jul 2023 04:35

/ Citrix Secure Access client escalate local privileges to AUTHORITY\SYSTEM

https://nvd.nist.gov/vuln/detail/CVE-2023-24491

and has RCE on Ubuntu:

https://nvd.nist.gov/vuln/detail/CVE-2023-24492

Sys-Admin InfoSec

14 Jul 2023 04:48

⚠️ Reminding/Notice. bld.sys-adm.in will migrate to OpenBLD.net

Review and resetup all DoT, DoH, DNS setings to OpenBLD.net please.

Keep in mind - On this IP addresess will only remain DoT, DoH:
- 49.12.234.130
- 135.125.204.230

Sys-Admin InfoSec

13 Jul 2023 14:27

/ Multiple Vulnerabilities in Juniper PHP software

Severity: Critical - Official KB article

Sys-Admin InfoSec

13 Jul 2023 08:49

/ Browse the Internet ecosystem with BGP Tools

— https://bgp.tools/

Sys-Admin InfoSec

13 Jul 2023 06:29

/ Urgent Security Notice: SonicWall GMS/Analytics Impacted by suite of vulnerabilities

https://www.sonicwall.com/support/knowledge-base/urgent-security-notice-sonicwall-gms-analytics-impacted-by-suite-of-vulnerabilities/230710150218060/

Sys-Admin InfoSec

12 Jul 2023 17:02

/ Storm-0978 attacks reveal financial and espionage motive

New phishing campaign:

https://www.microsoft.com/en-us/security/blog/2023/07/11/storm-0978-attacks-reveal-financial-and-espionage-motives/

And Office and Windows HTML Remote Code Execution Vulnerability:

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36884

Sys-Admin InfoSec

10 Jul 2023 12:49

Сентябрьский дайджест ИТ конференций в Алматы
 
Сентябрь насыщен ИТ-встречами, много друзей, много встреч, дети начинают учиться, а мы общаться:

• 8 Сентября. DevOps и все что рядом - DevOpsDays.kz
• 13-15 Сентября. Масштабная CyberSec конфа - KazHackStan.com
• 16 Сентября. Открытая IT/Cybersec/Ops Knowledge Sharing конфа Open SysConf.io

13 по 16 дни ИТ концентрата, живущим здесь энергетиков больше, едущим в Алматы на KHS - бери билеты на 4 дня 😉

Мира всем. Peace ✌️

Sys-Admin InfoSec

07 Jul 2023 13:06

Today info about of OpenBLD.net DNS added to AdGuard Wiki KnowledgeBaseDNS repo 🎉

Sys-Admin InfoSec

06 Jul 2023 19:05

/ EoP fix Android July update

High: fix elevation of privilege in Android:

https://source.android.com/docs/security/bulletin/aaos/2023-07-01

Sys-Admin InfoSec

06 Jul 2023 10:45

Открытый практикум Networks by Rebrain: Погружение в VoIP: протокол sip, основы работы с Asterisk
 
• 13 Июля (Четверг), 19:00 по МСК. Детали

Программа:
• SIP протокол: как устанавливается вызов
• Установка Asterisk
• Рассмотрение диагностические команды
• Настройка учетных записей (транки, пиры)
• Настройка dialplan

Ведет:
• Роман Сыртланов – VoIP инженер. Опыт работы с VoIP 7 лет. Работает с Asterisk/FreeSWITCH/Kamailio

Sys-Admin InfoSec

05 Jul 2023 10:01

TeamsPhisher

is a Python3 program that facilitates the delivery of phishing messages and attachments to Microsoft Teams users whose organizations allow external communications:

— https://github.com/Octoberfest7/TeamsPhisher

Sys-Admin InfoSec

04 Jul 2023 20:28

/ The DPRK strikes using a new variant of RUSTBUCKET

https://www.elastic.co/security-labs/DPRK-strikes-using-a-new-variant-of-rustbucket

Sys-Admin InfoSec

04 Jul 2023 06:49

AiTM/ MFA phishing attacks in combination with “new” Microsoft protections (2023 edition)

MFA is not the end all solution to identity security challenges. With only MFA there is still a risk for more modern attacks (MFA fatique, AiTM, PRT, OAuth Attacks and more). Adversary-in-the-middle phishing attacks are still more common in use. Since the removal of basic authentication from Exchange Online more and more attackers are using more modern attacks like adversary-in-the-middle phishing, cookie theft, and other used attacks. What is AiTM, automatic attack disruption and etc:

— https://jeffreyappel.nl/aitm-mfa-phishing-attacks-in-combination-with-new-microsoft-protections-2023-edt/

Sys-Admin InfoSec

03 Jul 2023 02:26

Active Directory Lab Setup Tool

https://browninfosecguy.com/Active-Directory-Lab-Setup-Tool

Sys-Admin InfoSec

30 Jun 2023 05:38

✍️ Notice: at the next week, all deprecated services will be disabled and all freed up resources will be included to OpenBLD.net DNS ecosystem.

Updates notice:
/channel/sysadm_in_channel/4701

Take care of yourself. Peace ✌️

Sys-Admin InfoSec

14 Jul 2023 14:49

/ Routers From The Underground: Exposing AVrecon

..complex operation that infects small-office/home-office (SOHO) routers, deploying a Linux-based Remote Access Trojan (RAT) we’ve dubbed “AVrecon.”..:

https://blog.lumen.com/routers-from-the-underground-exposing-avrecon/

Sys-Admin InfoSec

13 Jul 2023 14:30

/ TeamTNT Reemerged with New Aggressive Cloud Campaign

The botnet run by TeamTNT has set its sights on Docker and Kubernetes environments, Redis servers, Postgres databases, Hadoop clusters, Tomcat and Nginx servers, Weave Scope, SSH, and Jupyter applications..:

— Article with Technical Details from AquaSec

Sys-Admin InfoSec

13 Jul 2023 10:45

Открытый практикум Golang by Rebrain: Реализация kubernetes оператора
 
• 18 Июля (Вторник) 19:00 по МСК. Детали

Программа:
• Рассмотрим паттерн оператор, концепцию ресурсов и k8s REST API
• Рассмотрим реализацию кеша в библиотеки client-go для работы с API k8s
• Поработаем с Operator Framework
• Рассмотрим некоторые практики, используемые при написании операторов

Ведет:
• Дмитрий Гордеев – Руководитель практикума Golang by REBRAIN. Занимается разработкой нового Claud'а в x5 Tech. Опыт разработки – 5 лет

Sys-Admin InfoSec

13 Jul 2023 08:16

/ MIcrosoft confirms Chinese APT successful exploited Microsoft cloud email systems

Mitigation for China-Based Threat Actor Activity from MS:

https://blogs.microsoft.com/on-the-issues/2023/07/11/mitigation-china-based-threat-actor/

Sys-Admin InfoSec

12 Jul 2023 17:54

/ Azure AD is Becoming Microsoft Entra ID

https://techcommunity.microsoft.com/t5/microsoft-entra-azure-ad-blog/azure-ad-is-becoming-microsoft-entra-id/ba-p/2520436

Sys-Admin InfoSec

12 Jul 2023 14:40

/ FortiOS - Allow a remote attacker to execute arbitrary code or command

A stack-based overflow vulnerability [CWE-124] in FortiOS & FortiProxy may allow a remote attacker to execute arbitrary code or command via crafted packets reaching proxy policies or firewall policies with proxy mode alongside SSL deep packet inspection.

Description and workaround:

— https://www.fortiguard.com/psirt/FG-IR-23-183

Sys-Admin InfoSec

10 Jul 2023 09:27

Tailing Big Head Ransomware’s Variants, Tactics, and Impact

https://www.trendmicro.com/en_us/research/23/g/tailing-big-head-ransomware-variants-tactics-and-impact.html

Sys-Admin InfoSec

07 Jul 2023 08:22

Increased Truebot Activity Infects U.S. and Canada Based Networks

Deploy from phishing and exloitation some CVE..

IOC domains sended to OpenBLD.net DNS:

https://www.cisa.gov/news-events/cybersecurity-advisories/aa23-187a

Sys-Admin InfoSec

06 Jul 2023 12:28

/ Cisco ACI Multi-Site CloudSec Encryption Information Disclosure Vulnerability

!High: Cisco Nexus 9000 Series Fabric Switches in ACI mode could allow an unauthenticated, remote attacker to read or modify intersite encrypted traffic:

— https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-aci-cloudsec-enc-Vs5Wn2sX

Sys-Admin InfoSec

06 Jul 2023 07:35

/ Hunting for Nginx Alias Traversals in the wild

— https://labs.hakaioffsec.com/nginx-alias-traversal/

Sys-Admin InfoSec

05 Jul 2023 09:59

/ Ghostscript bug could allow rogue documents to run system commands

Unfortunately, until the latest release of Ghostscript, now at version 10.01.2, the product had a bug, dubbed CVE-2023-36664, that could allow rogue documents not only to create pages of text and graphics, but also to send system commands into the Ghostscript rendering engine and trick the software into running them:

— https://nakedsecurity.sophos.com/2023/07/04/ghostscript-bug-could-allow-rogue-documents-to-run-system-commands/

Sys-Admin InfoSec

04 Jul 2023 06:52

/ Spear Phishing: How it works and why you should care

— https://www.huntandhackett.com/blog/spear-phishing-how-and-why

Sys-Admin InfoSec

03 Jul 2023 02:32

/ Zyxel security advisory for pre-authentication command injection vulnerability in NAS products

https://www.zyxel.com/global/en/support/security-advisories/zyxel-security-advisory-for-pre-authentication-command-injection-vulnerability-in-nas-products

Sys-Admin InfoSec

02 Jul 2023 05:49

/ Malvertising Used as Entry Vector for BlackCat, Actors Also Leverage SpyBoy Terminator

Malicious actors used malvertising to distribute malware via cloned webpages of legitimate organizations. The distribution involved a webpage of the well-known application WinSCP, an open-source Windows application for file transfer via Google Ads...

https://www.trendmicro.com/en_us/research/23/f/malvertising-used-as-entry-vector-for-blackcat-actors-also-lever.html

P.S. IOC domains sends to OpenBLD.net DNS watch lists

Sys-Admin InfoSec

30 Jun 2023 03:45

/ 8Base Ransomware: A Heavy Hitting Player

https://blogs.vmware.com/security/2023/06/8base-ransomware-a-heavy-hitting-player.html

P.S. malicious domains send to OpenBLD.net DNS ecosystem