Description

CVE-2024-45492 is a critical vulnerability in libexpat, an XML parsing library. It allows an attacker to cause an integer overflow in the m_groupSize variable on 32-bit platforms, leading to a denial of service or arbitrary code execution. The SVRS of 84 indicates a high level of urgency and severity, necessitating immediate action.

Key Insights

• Exploit Status: Active exploits have been published, making this vulnerability a high-priority target for attackers.
• CISA Warnings: The Cybersecurity and Infrastructure Security Agency (CISA) has warned of the vulnerability, calling for immediate and necessary measures.
• In the Wild: The vulnerability is actively exploited by hackers, making it essential to patch affected systems as soon as possible.
• Threat Actors/APT Groups: Specific threat actors or APT groups actively exploiting this vulnerability have not been identified at this time.

Mitigation Strategies

• Update libexpat: Install the latest version of libexpat (2.6.3 or later) to patch the vulnerability.
• Restrict network access: Limit network access to affected systems to reduce the attack surface.
• Implement input validation: Validate all XML input to prevent malicious payloads from triggering the vulnerability.
• Use a web application firewall (WAF): Configure a WAF to block malicious requests that attempt to exploit the vulnerability.

Additional Information

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