An improper authentication vulnerability can be exploited through a race condition that…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-287.
Summary
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.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ellucian:banner_enterprise_identity_services:8.3:*:*:*:*:*:*:* | 8.3 | Vulnerable | Ellucian |
| cpe:2.3:a:ellucian:banner_enterprise_identity_services:8.3.1:*:*:*:*:*:*:* | 8.3.1 | Vulnerable | Ellucian |
| cpe:2.3:a:ellucian:banner_enterprise_identity_services:8.3.2:*:*:*:*:*:*:* | 8.3.2 | Vulnerable | Ellucian |
| cpe:2.3:a:ellucian:banner_enterprise_identity_services:8.4:*:*:*:*:*:*:* | 8.4 | Vulnerable | Ellucian |
| cpe:2.3:a:ellucian:banner_web_tailor:8.8.3:*:*:*:*:*:*:* | 8.8.3 | Vulnerable | Ellucian |
| cpe:2.3:a:ellucian:banner_web_tailor:8.8.4:*:*:*:*:*:*:* | 8.8.4 | Vulnerable | Ellucian |
| cpe:2.3:a:ellucian:banner_web_tailor:8.9:*:*:*:*:*:*:* | 8.9 | Vulnerable | Ellucian |
- cpe:2.3:a:ellucian:banner_enterprise_identity_services:8.3:*:*:*:*:*:*:* Versions 8.3 Vulnerable ·Ellucian
- cpe:2.3:a:ellucian:banner_enterprise_identity_services:8.3.1:*:*:*:*:*:*:* Versions 8.3.1 Vulnerable ·Ellucian
- cpe:2.3:a:ellucian:banner_enterprise_identity_services:8.3.2:*:*:*:*:*:*:* Versions 8.3.2 Vulnerable ·Ellucian
- cpe:2.3:a:ellucian:banner_enterprise_identity_services:8.4:*:*:*:*:*:*:* Versions 8.4 Vulnerable ·Ellucian
- cpe:2.3:a:ellucian:banner_web_tailor:8.8.3:*:*:*:*:*:*:* Versions 8.8.3 Vulnerable ·Ellucian
- cpe:2.3:a:ellucian:banner_web_tailor:8.8.4:*:*:*:*:*:*:* Versions 8.8.4 Vulnerable ·Ellucian
- cpe:2.3:a:ellucian:banner_web_tailor:8.9:*:*:*:*:*:*:* Versions 8.9 Vulnerable ·Ellucian
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-8978
- 2026-10-03 Alias added: GHSA-fcm9-r389-xjjv
References
Advisory 4
- 20190513 [CVE-2019-8978] Improper Authentication (CWE-287) in Ellucian Banner Web Tailor and Banner Enterprise Identity Services
- http://packetstormsecurity.com/files/152856/Ellucian-Banner-Web-Tailor-Banner-Enterprise-Identity-Services-Improper-Authentication.html
- 20190514 [CVE-2019-8978] Improper Authentication (CWE-287) in Ellucian Banner Web Tailor and Banner Enterprise Identity Services
- https://raw.githubusercontent.com/JoshuaMulliken/CVE-2019-8978/master/README.txt
Sources
- CVE-2019-8978 · CVE Program
- CVE-2019-8978 · NVD
- FIRST EPSS
- GHSA-fcm9-r389-xjjv · GitHub Advisory Database · CC BY 4.0
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