TTCSIRT-296.032020: TT-CSIRT ADVISORY- CISCO WEBEX NETWORK RECORDING PLAYER AND CISCO WEBEX PLAYER ARBITRARY CODE EXECUTION VULNERABILITIES

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TTCSIRT-296.032020: TT-CSIRT ADVISORY- CISCO WEBEX NETWORK RECORDING PLAYER AND CISCO WEBEX PLAYER ARBITRARY CODE EXECUTION VULNERABILITIES
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Multiple vulnerabilities in Cisco Webex Network Recording Player for Microsoft Windows and Cisco Webex Player for Microsoft Windows could allow an attacker to execute arbitrary code on an affected system. The vulnerabilities are due to insufficient validation of certain elements within a Webex recording that is stored in either the Advanced Recording Format (ARF) or […]

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TTCSIRT-295.180320: TT-CSIRT ADVISORY- ADOBE SECURITY UPDATE FOR ADOBE ACROBAT AND READER
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Adobe has released security updates for Adobe Acrobat and Reader for Windows and macOS. These updates address critical and important vulnerabilities. Successful exploitation could lead to arbitrary code execution in the context of the current user Adobe recommends users update their software installations to the latest versions by following the instructions below.     The latest product versions are available to end users […]

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TTCSIRT-294.031820: TT-CSIRT ADVISORY- VMWARE RELEASES SECURITY UPDATES FOR MULTIPLE PRODUCTS
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VMware has released security updates to address vulnerabilities in multiple products. A remote attacker could exploit some of these vulnerabilities to take control of an affected system. TT-CSIRT encourages users and administrators to review VMware Security Advisories VMSA-2020-0004 and VMSA-2020-005 and apply the necessary updates: https://www.vmware.com/security/advisories/VMSA-2020-0004.html https://www.vmware.com/security/advisories/VMSA-2020-0005.html

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TTCSIRT-293.031120: TT-CSIRT ADVISORY- MICROSOFT SMBv3 VULNERABILITY
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Microsoft has published an advisory for a critical remote code execution (RCE) vulnerability in Microsoft Server Message Block 3.1.1 (SMBv3). This vulnerability affects both SMB servers and SMB clients. .This vulnerability evokes memories of EternalBlue, an RCE vulnerability in Microsoft SMBv1 that was used as part of the WannaCry ransomware attacks in 2017. (Satnam Narang, […]

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TTCSIRT – 292-030620: TT-CSIRTADVISORY – UPDATE CISCO EMAIL SECURITY APPLIANCES: UNCONTROLLED RESOURCE EXHAUTION VULNERABILITY
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A vulnerability in the malware detection functionality in Cisco Advanced Malware Protection (AMP) in Cisco AsyncOS Software for Cisco Email Security Appliances (ESAs) could allow an unauthenticated remote attacker to exhaust resources on an affected device. The vulnerability is due to insufficient control over system memory allocation. An attacker could exploit this vulnerability by sending […]

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TTCSIRT-291.030620: TT-CSIRT ADVISORY- TOMCAT RELEASES SECURITY UPDATES
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Tomcat has released security updates to address vulnerabilities affecting multiple products. This update for tomcat to version 9.0.31 fixes the following three (3) issues: CVE-2019-17569, CVE-2020-1935 and CVE-2020-1938. TT-CSIRT encourages users and administrators to review and apply the necessary updates: https://www.suse.com/support/update/announcement/2020/suse-su-20200598-1

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TTCSIRT-290.030520:TT-CSIRT ADVISORY LET’S ENCRYPT REVOKING 3 MILLION TLS CERTIFICATES ISSUED INCORRECTLY DUE TO A BUG
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The most popular free certificate signing authority Let’s Encrypt is going to revoke more than 3 million TLS certificates within the next 24 hours that may have been issued wrongfully due to a bug in its Certificate Authority software. The most popular free certificate signing authority Let’s Encrypt is going to revoke more than 3 million TLS certificates within […]

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TTCSIRT-289.022620: TT-CSIRT ADVISORY- MICROSOFT EXCHANGE SERVER VULNERABILITY
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Microsoft Exchange Server Exchange Control Panel Fixed Cryptographic Key Remote Code Execution Vulnerability   This vulnerability allows remote attackers to execute arbitrary code on affected installations of Microsoft Exchange Server. Authentication is required to exploit this vulnerability. The specific flaw exists within the Exchange Control Panel web application. The product fails to generate a unique […]

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TTCSIRT-288.022620: TT-CSIRT ADVISORY- MICROSOFT INTERNET EXPLORER SCRIPTING ENGINE MEMORY CORRUPTION VULNERABILITY.
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The Microsoft Internet Explorer Scripting Engine contains a memory corruption vulnerability, which can allow a remote, unauthenticated attacker to execute arbitrary code.   Description Microsoft Internet Explorer contains a scripting engine, which handles execution of scripting languages such as VBScript and JScript. The scripting engine JScript component contains an unspecified memory corruption vulnerability. Any application […]

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TTCSIRT-287.022620: TT-CSIRT ADVISORY- MULTIPLE ZYXEL DEVICE VULNERABILITIES.
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Multiple ZyXEL devices contain a pre-authentication command injection vulnerability, which may allow a remote, unauthenticated attacker to execute arbitrary code on a vulnerable device.   Description CWE-78: Improper Neutralization of Special Elements used in an OS Command (‘OS Command Injection’) Multiple ZyXEL devices achieve authentication by using the weblogin.cgi CGI executable. This program fails to […]

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