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AlienVault OTX Vulnerabilities

AlienVault OTX Malware

strongswan

strongSwan before 5.9.12 has a buffer overflow and possible unauthenticated remote code execution via a DH public value that exceeds the internal buffer in charon-tkm's DH proxy. The earliest affected version is 5.3.0. An attack can occur via a crafted IKE_SA_INIT message.

CVE-2023-41913 is a critical vulnerability identified in the strongSwan VPN software, specifically affecting versions before 5.9.12. The flaw resides in the charon-tkm component, which handles the Diffie-Hellman (DH) key exchange during the IKE_SA_INIT phase of the IPsec VPN setup. The vulnerability is a classic buffer overflow (CWE-120) triggered when an attacker sends a DH public value that exceeds the allocated internal buffer size. This malformed input causes memory corruption, enabling an unauthenticated remote attacker to execute arbitrary code on the target system. The attack vector is a crafted IKE_SA_INIT message, which is part of the initial handshake in establishing a secure VPN tunnel. Since no authentication or user interaction is required, the vulnerability is highly exploitable over the network. The CVSS v3.1 base score of 9.8 reflects the critical impact on confidentiality, integrity, and availability, with an attack complexity rated as low. The earliest affected version is 5.3.0, and the vulnerability was publicly disclosed on December 7, 2023. Although no exploits have been observed in the wild yet, the severity and ease of exploitation make this a high-priority security issue. The lack of patch links in the provided data suggests that organizations must verify and apply the official strongSwan update to version 5.9.12 or later to remediate the issue. The vulnerability poses a significant threat to VPN infrastructures relying on strongSwan, potentially allowing attackers to gain full control over affected systems, intercept sensitive communications, or disrupt network availability.

Detailed information about CVE-2023-41913: n/a. Get real-time updates, technical details, and mitigation strategies.

CVE-2023-41913: n/a - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2023-41913: n/a

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