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A critical vulnerability, identified as CVE-2024-20439, has been discovered in the Cisco Smart Licensing Utility (CSLU), a Windows application used for managing licenses. This flaw exposes a built-in backdoor admin account due to an undocumented static user credential. Unauthenticated attackers are now actively exploiting this vulnerability to gain remote administrative access to unpatched systems through the CSLU app's API. Cisco has urged administrators to immediately apply the necessary patches to prevent unauthorized access and mitigate the risk.
The exploitation of CVE-2024-20439 allows attackers to bypass normal authentication procedures and gain control over the CSLU API. This provides them with the ability to manage services, extract sensitive data, and potentially move laterally within affected networks. The U.S. CISA has added this Cisco Smart Licensing Utility flaw to its Known Exploited Vulnerabilities catalog, highlighting the severity and active exploitation of this vulnerability. The vulnerability was first disclosed by Cisco in September 2024 and has since been actively exploited in the wild, raising significant concerns about network security.
ImgSrc: thedefendopsdia
References :
The exploitation of CVE-2024-20439 allows attackers to bypass normal authentication procedures and gain control over the CSLU API. This provides them with the ability to manage services, extract sensitive data, and potentially move laterally within affected networks. The U.S. CISA has added this Cisco Smart Licensing Utility flaw to its Known Exploited Vulnerabilities catalog, highlighting the severity and active exploitation of this vulnerability. The vulnerability was first disclosed by Cisco in September 2024 and has since been actively exploited in the wild, raising significant concerns about network security.
ImgSrc: thedefendopsdia
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References :
- bsky.app: CISA adds a Cisco Smart Licensing Utility Static Credential flaw tracked as CVE-2024-20439 to the KEV database. This flaw allows unauthenticated attackers to log in using the hardcoded credential.
- BleepingComputer: Cisco warns admins to patch a critical Cisco Smart Licensing Utility (CSLU) vulnerability, which exposes a built-in backdoor admin account now used in attacks.
- The DefendOps Diaries: Explore the critical Cisco Smart Licensing Utility vulnerability and learn mitigation strategies to protect your network.
- BleepingComputer: Cisco warns admins to patch a critical Cisco Smart Licensing Utility (CSLU) vulnerability, which exposes a built-in backdoor admin account now used in attacks.
Classification:
- HashTags: #Cybersecurity #Cisco #Vulnerability
- Company: Cisco
- Target: Cisco Customers
- Product: Smart Licensing Utility
- Feature: Backdoor Account
- Type: Vulnerability
- Severity: Critical