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    Rewterz Threat Alert – Mekotio Banking Trojan aka Melcoz – Active IOCs
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    March 22, 2023
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    Rewterz Threat Update – Cyber Threat Intelligence Advisory – 23rd March Pakistan Day
    Analysis Summary Overview – 23rd Mar – A Big Day –  As we approach the 23rd of March, Pakistan Day, organizations and individuals should be aware […]
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    Rewterz Threat Advisory -Multiple Jenkins Products Vulnerabilities
    Severity 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

    16
    pdf-file (1)
    Annual Threat Intelligence Report 2022
    • Threat Advisories
    • Monthly Threat Insights
    • Threat Intelligence Reports
  • Why Rewterz?

    About Us

    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.

    Read More

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    Our leadership team brings together years of knowledge and experience in cybersecurity to drive our company's mission and vision. Our team is passionate about delivering high-quality products and services, leading by example and assisting our clients in securing their organization’s environment.
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    At Rewterz, we believe that businesses have a responsibility to impact positively and contribute to the well-being of our communities as well as the planet. That's why we are committed to operating in a socially responsible and sustainable way.

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REWTERZ THREAT Advisory – LibreOffice and OpenOffice Remote Code Execution Vulnerability

February 6, 2019

SEVERITY: Medium

CATEGORY: Vulnerability

Analysis Summary

By tricking victims into opening an ODT (OpenDocument Text) file embedding an event embedded, it is possible to launch a directory traversal attack executing a python method from a script in any arbitrary file system location. Exploiting CVE-2018-16858, it is possible to trigger the automatic execution of a specific python library included in the suite using a hidden onmouseover event. On further analysis, researchers found out that under certain circumstances it is not only possible to specify the function you want to call inside a python script, but passing parameters is also a possibility.

In the fixed versions, access is restricted to scripts under the share/Scripts/python, user/Scripts/python sub-directories of the LibreOffice install.


Impact

Remote Code Execution

Affected Products

LibreOffice

OpenOffice

Remediation


While LibreOffice has been fixed with the release of LibreOffice 6.0.7/6.1.3, update to the fixed versions. OpenOffice is still awaiting a fix. Meanwhile, it is possible to remove or rename the pythonscript.py file in the installation folder to disable the support for python.

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