CVE-2026-18651— 389-ds-base 认证绕过漏洞：锁定账户仍可登录
影响版本矩阵 8
| 厂商 | 产品 | 版本范围 | 状态 |
|---|---|---|---|
| Red Hat | Red Hat Directory Server 11 | 全部 | affected |
| Red Hat | Red Hat Directory Server 12 | 全部 | affected |
| Red Hat | Red Hat Directory Server 13 | 全部 | affected |
| Red Hat | Red Hat Enterprise Linux 10 | 全部 | affected |
| Red Hat | Red Hat Enterprise Linux 6 | 全部 | unaffected |
| Red Hat | Red Hat Enterprise Linux 7 | 全部 | affected |
| Red Hat | Red Hat Enterprise Linux 8 | 全部 | affected |
| Red Hat | Red Hat Enterprise Linux 9 | 全部 | affected |
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一、 漏洞 CVE-2026-18651 基础信息
漏洞信息
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Vulnerability Title
389-ds-base: 389-ds-base: sasl plain bind installs connection credentials before account-lock check, allowing continued access as a locked account
来源: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in 389 Directory Server. During SASL PLAIN authentication, the server installs connection-level bind credentials before performing the account-lock check. If the account is subsequently found to be locked, the bind is reported as failed to the client, but the already-installed authenticated state on the connection is not reverted. A client that supplies valid credentials for an account that has been administratively locked can continue to use the same connection with that account's privileges, defeating account lock as an access-revocation control.
来源: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
来源: CVE Program / CVE List V5
Vulnerability Type
认证机制不恰当
来源: CVE Program / CVE List V5
受影响产品
| 厂商 | 产品 | 影响版本 | CPE | 订阅 |
|---|---|---|---|---|
| Red Hat | Red Hat Directory Server 11 | - | cpe:/a:redhat:directory_server:11 | |
| Red Hat | Red Hat Directory Server 12 | - | cpe:/a:redhat:directory_server:12 | |
| Red Hat | Red Hat Directory Server 13 | - | cpe:/a:redhat:directory_server:13 | |
| Red Hat | Red Hat Enterprise Linux 10 | - | cpe:/o:redhat:enterprise_linux:10 | |
| Red Hat | Red Hat Enterprise Linux 6 | - | cpe:/o:redhat:enterprise_linux:6 | |
| Red Hat | Red Hat Enterprise Linux 7 | - | cpe:/o:redhat:enterprise_linux:7 | |
| Red Hat | Red Hat Enterprise Linux 8 | - | cpe:/o:redhat:enterprise_linux:8 | |
| Red Hat | Red Hat Enterprise Linux 9 | - | cpe:/o:redhat:enterprise_linux:9 |
二、漏洞 CVE-2026-18651 的公开POC
| # | POC 描述 | 源链接 | 神龙链接 |
|---|
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CVE-2026-18651 厂商安全公告 (2)
同批安全公告 · Red Hat · 2026-08-03 · 共 6 条
| CVE-2026-68742 | 5.5 MEDIUM | SSSD NSS响应器缓冲区越界读取漏洞 |
| CVE-2026-6695 | 5.5 MEDIUM | Gimp 远程代码执行漏洞 |
| CVE-2026-6694 | 5.5 MEDIUM | GIMP 文件png插件拒绝服务漏洞 |
| CVE-2026-18477 | 4.4 MEDIUM | Tar增量目录重命名处理toctou漏洞 |
| CVE-2026-18508 | 4.4 MEDIUM | Tar --one-top-level目录硬链接漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-18651
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