{"uuid": "d1befeaa-c79e-49cc-9608-a3e819b09b9f", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "2a075640-a300-48a4-bb44-bc6130783b9b", "vulnerability": "CVE-2024-55884", "type": "seen", "source": "https://t.me/CyberBulletin/10688", "content": "Unlike the Ivanti vulnerabilities, exploitation here requires valid user credentials. By submitting specially crafted session attributes during SSL VPN establishment, an authenticated attacker could repeatedly crash the VPN server, disrupting service for legitimate users.\n\nWhile the server automatically recovers after each crash, sustained exploitation could render VPN services effectively unusable for extended periods.\n\n\n---\n\nCVE-2024-55884: Critical Vulnerability in Mullvad VPN Applications\n\nIn an independent white-box security review conducted by X41 D-Sec GmbH, several serious vulnerabilities were discovered in Mullvad VPN across all platforms. The most severe, CVE-2024-55884 (CVSS 9.0), involved an out-of-bounds memory write caused by insufficiently sized alternate signal stacks in exception handlers.\n\nImpact:\n\nUnder carefully engineered conditions, an attacker could remotely trigger signals causing memory corruption, potentially leading to heap overflows and application compromise. The underlying issue stemmed from poor management of Unix signal handling (exception_logging/unix.rs).\n\n\n---\n\nConclusion\n\nThe vulnerabilities revealed over the past six months provide a stark reminder: VPNs, while often marketed as silver bullets for privacy and security, can themselves introduce significant risks. As sophisticated threat actors continue targeting VPN infrastructures, organizations and individuals must remain vigilant \u2014 promptly applying patches, retiring unsupported systems, and reassessing their dependency on VPN technologies as a cornerstone of security strategies.\n\nSecurity through obscurity is no longer sufficient. Zero-trust principles, segmentation, and layered defenses must complement traditional VPN deployments to effectively mitigate modern threats.\n\n#HackersFactory", "creation_timestamp": "2025-04-27T03:42:30.000000Z"}