| 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. |
|---|---|
| Publication Date | May 15, 2019, 4:29 a.m. |
| Registration Date | Jan. 26, 2021, 11:45 a.m. |
| Last Update | Nov. 21, 2024, 1:50 p.m. |
| CVSS3.0 : HIGH | |
| スコア | 8.1 |
|---|---|
| Vector | CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H |
| 攻撃元区分(AV) | ネットワーク |
| 攻撃条件の複雑さ(AC) | 高 |
| 攻撃に必要な特権レベル(PR) | 不要 |
| 利用者の関与(UI) | 不要 |
| 影響の想定範囲(S) | 変更なし |
| 機密性への影響(C) | 高 |
| 完全性への影響(I) | 高 |
| 可用性への影響(A) | 高 |
| CVSS2.0 : MEDIUM | |
| Score | 6.8 |
|---|---|
| Vector | AV:N/AC:M/Au:N/C:P/I:P/A:P |
| 攻撃元区分(AV) | ネットワーク |
| 攻撃条件の複雑さ(AC) | 中 |
| 攻撃前の認証要否(Au) | 不要 |
| 機密性への影響(C) | 低 |
| 完全性への影響(I) | 低 |
| 可用性への影響(A) | 低 |
| Get all privileges. | いいえ |
| Get user privileges | いいえ |
| Get other privileges | いいえ |
| User operation required | いいえ |
| Configuration1 | or higher | or less | more than | less than | |
| cpe:2.3:a:ellucian:banner_web_tailor:8.8.3:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:ellucian:banner_web_tailor:8.8.4:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:ellucian:banner_web_tailor:8.9:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:ellucian:banner_enterprise_identity_services:8.3:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:ellucian:banner_enterprise_identity_services:8.3.1:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:ellucian:banner_enterprise_identity_services:8.3.2:*:*:*:*:*:*:* | |||||
| cpe:2.3:a:ellucian:banner_enterprise_identity_services:8.4:*:*:*:*:*:*:* | |||||
| Title | Ellucian Banner Web Tailor および Banner Enterprise Identity Services における競合状態に関する脆弱性 |
|---|---|
| Summary | Ellucian Banner Web Tailor および Banner Enterprise Identity Services には、競合状態に関する脆弱性が存在します。 |
| Possible impacts | 情報を取得される、情報を改ざんされる、およびサービス運用妨害 (DoS) 状態にされる可能性があります。 |
| Solution | ベンダ情報および参考情報を参照して適切な対策を実施してください。 |
| Publication Date | May 13, 2019, midnight |
| Registration Date | June 4, 2019, 6:06 p.m. |
| Last Update | June 4, 2019, 6:06 p.m. |
| Ellucian |
| Banner Enterprise Identity Services 8.3 |
| Banner Enterprise Identity Services 8.3.1 |
| Banner Enterprise Identity Services 8.3.2 |
| Banner Enterprise Identity Services 8.4 |
| Banner Web Tailor 8.8.3 |
| Banner Web Tailor 8.8.4 |
| Banner Web Tailor 8.9 |
| No | Changed Details | Date of change |
|---|---|---|
| 1 | [2019年06月04日] 掲載 |
June 4, 2019, 6:06 p.m. |