CISA received seven files for analysis. Six Java Server Pages (JSP) webshells and a Bourne Again SHell (bash) file. Five JSP webshell files are designed to parse inbound requests for commands for execution, download files, and upload files. One JSP webshell file contains a form with input fields that prompts the attacker to enter the command in the input box and click "run" to execute. The command output will be displayed in a JSP page. The bash file is designed to perform ldapsearch queries and store the output into a newly created directory.

On May 10, 2022, Zimbra released versions 9.0.0 patch 24 and 8.8.15 patch 31 to address multiple vulnerabilities in Zimbra Collaboration Suite, including CVE-2…

On May 6, 2022, Rarlab released version 6.17, which addresses CVE-2022-30333, a path traversal vulnerability reported to them by Sonar, who posted a write-up about it. Sonar specifically calls out Zimbra Collaboration Suite’s usage of unrar as vulnerable (specifically, the amavisd component, which is used to inspect incoming emails for spam and malware). Zimbra addressed this issue in 9.0.0 patch 25 and 8.5.15 patch 32 by replacing unrar with 7z.

On May 10, 2022, Zimbra released versions 9.0.0 patch 24 and 8.8.15 patch 31 to address multiple vulnerabilities in Zimbra Collaboration Suite, including CVE-2…

On May 6, 2022, Rarlab released version 6.17, which addresses CVE-2022-30333, a path traversal vulnerability reported to them by Sonar, who posted a write-up about it. Sonar specifically calls out Zimbra Collaboration Suite’s usage of unrar as vulnerable (specifically, the amavisd component, which is used to inspect incoming emails for spam and malware). Zimbra addressed this issue in 9.0.0 patch 25 and 8.5.15 patch 32 by replacing unrar with 7z.