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This channel posts IT security related topics and especially alerts. Submissions over at @itsectalk welcome!

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@itsecalert : ⚠️ Microsoft Exchange Server - GENERAL ADVISORY - UPDATE IMMEDIATELY! Several new flaws (CVE-2021-26855, CVE-2021-26857, CVE-2021-26858, and CVE-2021-27065) have been reported and Microsoft issued an emergency fix. It is reported that the vulnerabilities are actively being exploited. Affected: Exchange Server 2013, Exchange Server 2016, and Exchange Server 2019. More Information (Advisory/Updates): https://yt.gl/exchangeexp (severity: 🔶 very high) #alert #vulnerability #severityhigh #exch

@itsecalert : ⚠️ "Barcode Scanner" app on Android turned evil! Removed from playstore but not from your devices. It had over 10 million installs so there is a good chance that you know someone that has it. Please let them know. App Name: Barcode Scanner MD5: A922F91BAF324FA07B3C40846EBBFE30 Package Name: com.qrcodescanner.barcodescanner Severity: 🔸High Additional information https://yt.gl/barcodeevil #alert #severityHigh #maliciousupdate #barcodescanner #android ➡️ Please forward to your friends and fam

@itsecalert : ⚠️Buffer overflow in sudo (linux utility) - ❗️ affects most distributions/versions - CVE-2021-3156 While a local user is required to exploit this vulnerability, even the account 'nobody' can exploit this vulnerability. An unprivileged user can gain root privileges on affected hosts! Check if you are affected! To check if you are affected, run sudoedit -s / as non-root user. If the response is sudoedit: your system is vulnerable. The following "sudo" versions are vulnerable * All legacy version

@itsecalert : ⚠️SonicWall VPN Portal Critical Flaw Tripwire VERT has identified a stack-based buffer overflow in SonicWall Network Security Appliance (NSA). A fix is available. SonicWall has indicated that the following versions are vulnerable: * SonicOS 6.5.4.7-79n and earlier * SonicOS 6.5.1.11-4n and earlier * SonicOS 6.0.5.3-93o and earlier * SonicOSv 6.5.4.4-44v-21-794 and earlier * SonicOS 7.0.0.0-1 (Severity: 🔸high) Additional information: https://www.tripwire.com/state-of-security/vert/sonicwall-v

@itsecalert : ⚠️ iPhones/iPads Mail app vulnerable "The flaws could eventually let remote hackers secretly take complete control over Apple devices just by sending an email to any targeted individual with his email account logged-in to the vulnerable app." Severity: 🔶 High More Information: https://yt.gl/tjqz8 #alert #severityhigh #vulnerability #apple #mailapp 📬 Spread the news, forward the message to your mobile management admins. ❓ Questions? Feedback? Want to discuss? Join us at @itsectalk

@itsecalert : This channel is not dead, but we need your help. If you find something that might be interesting for broadcasting, please let us know in @itsectalk - thanks! 🚨

@itsecalert : ⚠ Two unauthenticated RCE vulns in Microsoft Remote Desktop. Exploitation likely, says Microsoft. Affects Win 10, Win 7, Win 8.1, Windows Server 2008 R2, Windows Server 2012, Windows Server 2012 R2. Updates are available and they should be applied immediately, especially for those systems acessible through the internet. Severity: 🔶 High More Information: https://yt.gl/20191181 and https://yt.gl/20191182 #alert #vulnberability #severityhigh #microsoft #remotedesktopservice #terminalservice #u

@itsecalert : ⚠️ Logitech "Unifying" (wireless RX), several vulnerabilities. Affected are all products (keyboards, mice, presenters) that carry the "Unifying" logo. Updates are available for some vulns, but applying the updates is not straight forward, please check the more information link. Severity: 🔶 High More Information: https://yt.gl/logitechunifying #alert #severityhigh #vulnerability #hardware #logitech #unifying 📬 Spread the news, forward the message to your enterprise admins. ❓ Questions? Feed

@itsecalert : ⚠️ Linux/FreeBSD Denial of Service attacks possible. Netflix has identified several TCP networking vulnerabilities in FreeBSD and Linux kernels. - CVE-2019-11477: SACK Panic (Linux >= 2.6.29) - 3 more CVEs Severity: 🔶 High More Information: https://yt.gl/sackpanic #alert #severityhigh #vulnerability #linux #freebsd #networking #kernel 📬 Spread the news, forward the message to your sysadmins. ❓ Questions? Feedback? Want to discuss? Join us at @itsectalk