The Ellician Banner, which is used by many colleges throughout the United Sates as their student-facing portal has been found to have a vulnerability that when carried out, allows attackers to use the credentials of the students immediately for criminal activity. The Department of Education released a statement about the vulnerability, stating that the flaw lies in the Banner Web Tailor version 8.8.3, 8.8.4 and 8.9, as well as the Banner Enterprise Identity Services versions 8.3, 8.3.1, 8.3.2 and 8.4. The Web Tailor portion allows the universities to customize their web apps, while the Identity Services is used to manage user accounts. The vulnerability, CVE-2019-8978, was given a score of 8.1 and has been listed as a “improper authentication” flaw. When attackers leverage this vulnerability through remote access, they can steal a victim’s session and cause denial of service. They do this by repeatedly requesting the initial Banner Web Tailor main page with the IDMSESSIS cookie set to the victim’s UDCID, in this case the institutional ID. When the attacker attempts to login, they will be issued a SESSID that was meant for the victim. The attackers are also using the vulnerability and admin credentials to create fake accounts in the system. The extent of the criminal activity is not clear yet, but the Board of Education is worried that if the attackers manage to get into the student accounts, they will be able view personally identifiable information as well as financial aid data.
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