National Vulnerability Database

National Vulnerability Database

National Vulnerability
Database

CVE-2019-8978 Detail

Current 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.

Source:  MITRE
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 8.1 HIGH
Vector: AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 2.2


Attack Vector (AV): Network
Attack Complexity (AC): High
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 6.8 MEDIUM
Vector: (AV:N/AC:M/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 8.6


Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://packetstormsecurity.com/files/152856/Ellucian-Banner-Web-Tailor-Banner-Enterprise-Identity-Services-Improper-Authentication.html Third Party Advisory VDB Entry
http://seclists.org/fulldisclosure/2019/May/18 Mailing List Third Party Advisory
https://ecommunities.ellucian.com/message/252749#252749 Permissions Required
https://ecommunities.ellucian.com/message/252810#252810 Permissions Required
https://raw.githubusercontent.com/JoshuaMulliken/CVE-2019-8978/master/README.txt Third Party Advisory
https://seclists.org/bugtraq/2019/May/31 Mailing List Third Party Advisory

Technical Details

Vulnerability Type (View All)

  • Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') (CWE-362)

Known Affected Software Configurations Switch to CPE 2.2

Configuration 1 ( hide )
 cpe:2.3:a:ellucian:banner_enterprise_identity_services:8.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ellucian:banner_enterprise_identity_services:8.3.1:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ellucian:banner_enterprise_identity_services:8.3.2:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ellucian:banner_enterprise_identity_services:8.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ellucian:banner_web_tailor:8.8.3:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ellucian:banner_web_tailor:8.8.4:*:*:*:*:*:*:*
     Show Matching CPE(s)
 cpe:2.3:a:ellucian:banner_web_tailor:8.9:*:*:*:*:*:*:*
     Show Matching CPE(s)


Change History

1 change record found - show changes

Quick Info

CVE Dictionary Entry:
CVE-2019-8978
NVD Published Date:
05/14/2019
NVD Last Modified:
05/16/2019