CVE-2012-3240

CVE-2012-3240 describes a critical privilege escalation vulnerability in the Walrus service of Eucalyptus versions 2.0.3 and 3.0.x before 3.0.2. An unauthenticated remote attacker can exploit this flaw by sending a specially crafted REST request, gaining full administrator privileges over the affected system. With a CVSS score of 7.5, this vulnerability is considered highly severe due to its network-based attack vector, low attack complexity, and potential for complete compromise of confidentiality, integrity, and availability. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the potential impact remains significant for unpatched Eucalyptus deployments.