Published: 09/03/2022 Updated: 30/09/2022

CVSS v2 Base Score: 6.5 | Impact Score: 6.4 | Exploitability Score: 8

CVSS v3 Base Score: 7.2 | Impact Score: 5.9 | Exploitability Score: 1.2

VMScore: 580

Vector: AV:N/AC:L/Au:S/C:P/I:P/A:P

This vulnerability allows remote malicious users to execute arbitrary code on affected installations of MyBB. Authentication is required to exploit this vulnerability. The specific flaw exists within the Control Panel. The issue results from the lack of proper validation of a user-supplied string before using it to construct server-side code. An attacker can leverage this vulnerability to execute code in the context of the www-data user.

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mybb mybb

This Metasploit module exploits an improper input validation vulnerability in MyBB versions prior to 1830 to execute arbitrary code in the context of the user running the application The MyBB Admin Control setting page calls the PHP eval function with unsanitized user input The exploit adds a new setting, injecting the payload in the vulnerable ...

MyBB version 1829 suffers from a remote code execution vulnerability ...

CVE-2022-24734 PoC

CVE-2022-24734 PoC An RCE can be obtained on MyBB's Admin CP in Configuration -> Add New Setting The user must have a rights to add or update setting This is tested on MyBB 1829

MyBB 1.8.29 - Remote Code Execution

mybb-CVE-2022-24734 MyBB 1829 - Remote Code Execution git clone githubcom/lavclash75/mybb-CVE-2022-24734git cd "mybb-CVE-2022-24734" docker-compose down docker system prune -a docker rm -f $(docker ps -a -q) docker volume rm $(docker volume ls -q) docker-compose up -d

CWE-94 https://mybb.com/versions/1.8.30/https://github.com/mybb/mybb/commit/92012b9831b330714b9f9b4646a98784113489c1 https://github.com/mybb/mybb/security/advisories/GHSA-876v-gwgh-w57f https://www.zerodayinitiative.com/advisories/ZDI-22-503/http://packetstormsecurity.com/files/167082/MyBB-1.8.29-Remote-Code-Execution.html http://packetstormsecurity.com/files/167333/MyBB-Admin-Control-Remote-Code-Execution.html https://nvd.nist.gov https://github.com/Altelus1/CVE-2022-24734 https://packetstormsecurity.com/files/167333/MyBB-Admin-Control-Remote-Code-Execution.html https://www.zerodayinitiative.com/advisories/ZDI-22-503/

CVE-2022-24734

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