Vulnerability CVE-2019-8978
Published: 2019-05-14

Description:
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.

See advisories in our WLB2 database:
Topic
Author
Date
Med.
Ellucian Banner Web Tailor / Banner Enterprise Identity Services Improper Authentication
Joshua Mulliken
14.05.2019

Type:

CWE-362

CVSS2 => (AV:N/AC:M/Au:N/C:P/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
6.8/10
6.4/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
Partial
Partial
Partial
Affected software
Ellucian -> Banner enterprise identity services 
Ellucian -> Banner web tailor 

 References:
http://packetstormsecurity.com/files/152856/Ellucian-Banner-Web-Tailor-Banner-Enterprise-Identity-Services-Improper-Authentication.html
http://seclists.org/fulldisclosure/2019/May/18
https://ecommunities.ellucian.com/message/252749#252749
https://ecommunities.ellucian.com/message/252810#252810
https://raw.githubusercontent.com/JoshuaMulliken/CVE-2019-8978/master/README.txt
https://seclists.org/bugtraq/2019/May/31
Copyright 2024, cxsecurity.com

 

Back to Top