vBulletin - RCE (CVE-2020-17496)
572Exploiting IPs reported
vBulletin 5.5.4 through 5.6.2 allows remote command execution via crafted subWidgets data in an ajax/render/widget_tabbedcontainer_tab_panel request. NOTE: this issue exists because of an incomplete fix for CVE-2019-16759.
CrowdSec analysis
CVE-2020-17496 is a critical vulnerability in vBulletin that allows remote attackers to achieve unauthenticated command execution by abusing ajax functionality with specially crafted data.
CrowdSec has been tracking this vulnerability and its exploits since 15th of December 2023.
CrowdSec network data shows that most actors exploiting CVE-2020-17496 rely on broad, untargeted scans with minimal filtering. The activity is largely automated and opportunistic in nature. CrowdSec data also reveals a clear uptick in attacks involving CVE-2020-17496 over the past week. Activity is above the usual baseline, suggesting growing attention from attackers. This may reflect rising awareness, recent exploit releases, or expanded targeting efforts.
Attackers typically target URLs containing /ajax/render/widget_tabbedcontainer_tab_panel in their exploitation attempts.
Exploitation
Get real-time information about exploitation attempts and actors involved.
Protection
Find out relevant information to protect your stack against this CVE.
Blocklist
With our advanced worldwide network detection, CrowdSec can provide a list of IPs known for exploiting the vulnerability.
To increase your protection against this CVE, block exploitation attempts with this list of identified actors.