CVE-2024-0193
Linux
CVE-2024-0193 is a use-after-free vulnerability in the Linux kernel's netfilter subsystem. This flaw allows a local, unprivileged user with CAP_NET_ADMIN to potentially escalate their privileges on the system. The vulnerability stems from double deactivation of an element when the catchall element is garbage-collected upon removal of the pipapo set. Although the CVSS score is 6.7, indicating moderate severity, the SOCRadar Vulnerability Risk Score (SVRS) is 69, highlighting the potential risk. Given that active exploits are published "In The Wild" for CVE-2024-0193, admins should prioritize updates. The potential for privilege escalation makes this a serious threat, demanding prompt patching and mitigation to prevent unauthorized access. Failing to address this can result in system compromise and data breaches.
Description:
CVE-2024-0193 is a use-after-free vulnerability in the netfilter subsystem of the Linux kernel. This flaw allows a local unprivileged user with CAP_NET_ADMIN capability to escalate their privileges on the system. The SVRS score of 36 indicates a moderate risk, requiring attention and appropriate mitigation measures.
Key Insights:
- Privilege Escalation: This vulnerability can be exploited by a local unprivileged user to gain elevated privileges on the system. This could allow an attacker to access sensitive data, modify system files, or execute arbitrary code with root privileges.
- Local Attack: The vulnerability requires local access to the affected system. This means that an attacker would need to have physical access to the machine or be able to compromise it remotely through other means, such as phishing or malware.
- Wide Impact: The Linux kernel is used in a wide range of devices, including servers, desktops, and embedded systems. This vulnerability could potentially affect a large number of systems and organizations.
Mitigation Strategies:
- Apply Security Updates: System administrators should apply the latest security updates from their Linux distribution as soon as possible. These updates will patch the vulnerability and protect systems from exploitation.
- Restrict Privileges: Organizations should implement least privilege principles and restrict user access to only the resources and privileges necessary for their job roles. This can help to limit the impact of privilege escalation attacks.
- Enable Intrusion Detection and Prevention Systems: Organizations should deploy intrusion detection and prevention systems (IDS/IPS) to monitor network traffic and identify suspicious activity. These systems can help to detect and block attacks that attempt to exploit this vulnerability.
- Educate Users: Organizations should educate users about the risks of phishing and malware attacks and provide them with the tools and knowledge they need to protect themselves.
Additional Information:
- Threat Actors/APT Groups: There is no information available about specific threat actors or APT groups actively exploiting this vulnerability.
- Exploit Status: There are no known active exploits for this vulnerability at this time.
- CISA Warnings: The Cybersecurity and Infrastructure Security Agency (CISA) has not issued a warning for this vulnerability.
- In the Wild: There is no evidence that this vulnerability is being actively exploited by hackers in the wild.
If users have additional queries regarding this incident, they can use the 'Ask to Analyst' feature, contact SOCRadar directly, or open a support ticket for more information if necessary.
Indicators of Compromise
Exploits
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Affected Software
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CWE Details
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