Threats Tagged 'cve-2024-42009'
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Threats Tagged 'cve-2024-42009'
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The UNC1151 threat actor is exploiting a critical vulnerability (CVE-2024-42009) in the Roundcube webmail client through a spearphishing campaign targeting primarily Polish organizations. Malicious JavaScript embedded in phishing emails installs a stealthy Service Worker in victims' browsers upon simply opening the email, intercepting login credentials and exfiltrating them to attacker-controlled infrastructure without further user interaction. A second vulnerability (CVE-2025-49113) may be chained to increase persistence and impact. Stolen credentials enable attackers to access mailboxes, harvest address books, and propagate phishing internally, facilitating lateral movement. The attack bypasses many traditional endpoint defenses and is difficult to detect due to the abuse of browser Service Workers. The campaign also threatens neighboring Central European countries with significant Roundcube deployments. Organizations are urged to patch vulnerabilities, monitor for unusual Service Worker activity, enforce multi-factor authentication, and enhance email filtering to mitigate risks. Join the discussion | AlienVault OTX General | 06/05/2025, 22:36:28 UTC Added: 06/06/2025, 07:28:53 UTC |
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