Cisco smart license utility - Information Disclosure (CVE-2024-20440)
180Exploiting 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.
CrowdSec network observations suggest that most exploitation of CVE-2024-20440 involves focused reconnaissance to identify viable targets. Attackers typically tailor their campaigns based on system exposure and configuration. It is unlikely that a given attack is accidental. CrowdSec network telemetry also shows that exploitation of CVE-2024-20440 has significantly declined over the past week. Attack volumes are well below the long-term average, suggesting attackers are rapidly losing interest. The vulnerability appears to be falling out of active use across most threat landscapes.
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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