CVE 2013-6766
OpenVAS Administrator 1.2 before 1.2.2 and 1.3 before 1.3.2 allows remote attackers to bypass the OAP authentication restrictions and execute OAP commands via a crafted OAP request for version information, which causes the state to be set to CLIENT_AUTHENTIC.
See the
CVE page on Mitre.org
for more details.