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Home > Cybersecurity > CISA adds 2 new vulnerabilities to the list

CISA adds 2 new vulnerabilities to the list

CISA announced that Windows Support Diagnostic Tool and UnRAR vulnerabilities are currently being exploited in the wild.


Erdem Yasar Erdem Yasar
August 10, 2022
2 min read
CISA adds 2 new vulnerabilities to the list
  • Cybersecurity and Infrastructure Security Agency has added two flaws to its Known Exploited Vulnerabilities catalog to warn agencies.
  • Windows Support Diagnostic Tool remote code execution vulnerability was discovered two years ago but Microsoft denied that it is a security issue.
  • The UnRAR vulnerability, which has a CVSS score of 7.5, can allow an attacker to write to files during an extract operation.

The Cybersecurity and Infrastructure Security Agency announced that the organization has added two new vulnerabilities to its Known Exploited Vulnerabilities catalog. This means CISA has evidence that shows that these two vulnerabilities are currently being exploited in the wild. These vulnerabilities are Microsoft Windows Support Diagnostic Tool remote code execution vulnerability and RARLAB UnRAR directory traversal vulnerability.

High severity score

While both vulnerabilities have high severity scores, Microsoft’s vulnerability is not new. It was reported to the company by Imre Rad in January of 2020. But the tech giant claimed that it isn’t a security risk and dismissed it. Security researcher j00sean published the video proof of vulnerability being exploited. It was addressed in the August security update.

This is for sure an underrated 0day on Microsoft Support Diagnostics Tool. To summarize:

1) Persistence by startup folder.
2) MOTW bypass.
3) Not flagged by chromium-based file downloaders (Chrome, Edge or Opera).
4) Defender bypass.

All-in-one. Enjoy!https://t.co/lgTnDSxYGM pic.twitter.com/UyNyEYlH4c

— j00sean (@j00sean) June 2, 2022

On the CISA’s list, the vulnerabilities are described as:

  • CVE-2022-34713: A remote code execution vulnerability exists when Microsoft Windows MSDT is called using the URL protocol from a calling application.
  • CVE-2022-30333: RARLAB UnRAR on Linux and UNIX contains a directory traversal vulnerability, allowing an attacker to write to files during an extract (unpack) operation.

The path traversal bug found in the UnRAR utility for Linux and Unix systems can allow attackers to plant malicious files. The vulnerability, found by SonarSource, allows attackers to plant the file by extracting it to an arbitrary location while unpacking. Federal agencies are required to apply the patchers before August ends.

See more Cybersecurity News


Tags: CISAMicrosoft
Erdem Yasar

Erdem Yasar

Erdem Yasar is a news editor at Cloud7 News. Erdem started his career by writing video game reviews in 2007 for PC World magazine while he was studying computer engineering. In the following years, he focused on software development with various programming languages. After his graduation, he continued to work as an editor for several major tech-related websites and magazines. During the 2010s, Erdem Yasar shifted his focus to cloud computing, hosting, and data centers as they were becoming more popular topics in the tech industry. Erdem Yasar also worked with various industry-leading tech companies as a content creator by writing blog posts and other articles. Prior to his role at Cloud7 News, Erdem was the managing editor of T3 Magazine.

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