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CVE-2019-8978

Status Candidate

Overview

An improper authentication vulnerability can be exploited through a race condition that occurs in Ellucian Banner Web Tailor 8.8.3, 8.8.4, and 8.9 and Banner Enterprise Identity Services 8.3, 8.3.1, 8.3.2, and 8.4, in conjunction with SSO Manager. This vulnerability allows remote attackers to steal a victim's session (and cause a denial of service) by repeatedly requesting the initial Banner Web Tailor main page with the IDMSESSID cookie set to the victim's UDCID, which in the case tested is the institutional ID. During a login attempt by a victim, the attacker can leverage the race condition and will be issued the SESSID that was meant for this victim.

Related Files

Ellucian Banner Web Tailor / Banner Enterprise Identity Services Improper Authentication
Posted May 14, 2019
Authored by Joshua Mulliken

An improper authentication vulnerability was identified in Banner Web Tailor and Banner Enterprise Identity Services. This vulnerability is produced when SSO Manager is used as the authentication mechanism for Web Tailor, where this could lead to information disclosure and loss of data integrity for the impacted user(s). The vendor has verified the vulnerability and produced a patch that is now available. Web Tailor versions 8.8.3, 8.8.4, and 8.9 are affected. Banner Enterprise Identity Services versions 8.3, 8.3.1, 8.3.2, and 8.4 are affected.

tags | advisory, web, info disclosure
advisories | CVE-2019-8978
SHA-256 | c5b89c0ff022b33f83d7e2c6516d55d205f56d56360478b890a7b5ee92107c73
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