Cisco smart license utility - Information Disclosure (CVE-2024-20440)
240Exploiting IPs reported
A vulnerability in Cisco Smart Licensing Utility could allow an unauthenticated, remote attacker to access sensitive information. This vulnerability is due to excessive verbosity in a debug log file. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to obtain log files that contain sensitive data, including credentials that can be used to access the API.
CrowdSec analysis
CVE-2024-20440 is a vulnerability in Cisco Smart Licensing Utility that allows unauthenticated remote attackers to access sensitive diagnostic log files, potentially exposing credentials and other confidential details.
CrowdSec has been tracking this vulnerability and its exploits since 3rd of April 2025.
According to CrowdSec data, while opportunistic exploitation dominates, a portion of threat actors trying to exploit CVE-2024-20440 apply basic targeting methods such as port or service detection. This indicates emerging patterns of selective targeting. Additionally, according to week-over-week analysis by CrowdSec, exploitation of CVE-2024-20440 is surging. Attack volumes are spiking well above historical norms, indicating widespread and escalating interest from threat actors. CVE-2024-20440 is currently experiencing high visibility and active exploitation across the internet.
Exploitation attempts typically target URLs containing /cslu/v1/var/logs/customer-cslu-lib-log.log.
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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