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CVE-2022-26352

Status Candidate

Overview

An issue was discovered in the ContentResource API in dotCMS 3.0 through 22.02. Attackers can craft a multipart form request to post a file whose filename is not initially sanitized. This allows directory traversal, in which the file is saved outside of the intended storage location. If anonymous content creation is enabled, this allows an unauthenticated attacker to upload an executable file, such as a .jsp file, that can lead to remote code execution.

Related Files

dotCMS Shell Upload
Posted Jun 2, 2022
Authored by jheysel-r7, Hussein Daher, Shubham Shah | Site metasploit.com

When files are uploaded into dotCMS via the content API, but before they become content, dotCMS writes the file down in a temporary directory. In the case of this vulnerability, dotCMS does not sanitize the filename passed in via the multipart request header and thus does not sanitize the temporary file's name. This allows an attacker to use a specially crafted request to POST files to dotCMS via the ContentResource API that gets written outside of the dotCMS temporary directory. In the case of this exploit, an attacker can upload a specially crafted .jsp file to the webapp/ROOT directory of dotCMS which can allow for remote code execution.

tags | exploit, remote, root, code execution
advisories | CVE-2022-26352
SHA-256 | 6278f9faf70f24f5e2ce7692ddce577df263982c2d46d57858bd869409412d14
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