vBulletin - RCE (CVE-2020-17496)
234Exploiting 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.
According to CrowdSec data, while opportunistic exploitation dominates, a portion of threat actors trying to exploit CVE-2020-17496 apply basic targeting methods such as port or service detection. This indicates emerging patterns of selective targeting. In addition, according to the CrowdSec network, attack volume against CVE-2020-17496 has dipped slightly compared to the previous week. Although still commonly targeted, the decline suggests a cooling-off period. Long-term relevance remains, but attention is waning.
Attackers typically target URLs containing /ajax/render/widget_tabbedcontainer_tab_panel in their exploitation attempts.
Exploitation
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Protection
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Blocklist
With our advanced worldwide network detection, CrowdSec can provide a list of IPs known for exploiting the vulnerability.
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