Command Injection in vBulletin - CVE-2020-7373
Published: October 30, 2020 / Updated: December 16, 2020
Vulnerability identifier: #VU49028
CSH Severity: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-7373
CWE-ID: CWE-77
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
vBulletin
vBulletin
Software vendor:
vBulletin
vBulletin
Description
The vulnerability allows a remote attacker to execute arbitrary commands on the target system.
The vulnerability exists due to improper input validation in subWidgets data in an "ajax/render/widget_tabbedcontainer_tab_panel" request. A remote attacker can pass specially crafted data to the application and execute arbitrary commands on the target system.
Remediation
Install updates from vendor's website.
External links
- https://blog.exploitee.rs/2020/exploiting-vbulletin-a-tale-of-patch-fail/
- https://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4445227-vbulletin-5-6-0-5-6-1-5-6-2-security-patch
- https://github.com/rapid7/metasploit-framework/pull/13970
- https://seclists.org/fulldisclosure/2020/Aug/5