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一、 漏洞 CVE-2023-42669 基础信息
漏洞信息

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Vulnerability Title
Samba: "rpcecho" development server allows denial of service via sleep() call on ad dc
来源: 美国国家漏洞数据库 NVD
Vulnerability Description
A vulnerability was found in Samba's "rpcecho" development server, a non-Windows RPC server used to test Samba's DCE/RPC stack elements. This vulnerability stems from an RPC function that can be blocked indefinitely. The issue arises because the "rpcecho" service operates with only one worker in the main RPC task, allowing calls to the "rpcecho" server to be blocked for a specified time, causing service disruptions. This disruption is triggered by a "sleep()" call in the "dcesrv_echo_TestSleep()" function under specific conditions. Authenticated users or attackers can exploit this vulnerability to make calls to the "rpcecho" server, requesting it to block for a specified duration, effectively disrupting most services and leading to a complete denial of service on the AD DC. The DoS affects all other services as "rpcecho" runs in the main RPC task.
来源: 美国国家漏洞数据库 NVD
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
来源: 美国国家漏洞数据库 NVD
Vulnerability Type
未加控制的资源消耗(资源穷尽)
来源: 美国国家漏洞数据库 NVD
Vulnerability Title
Samba 安全漏洞
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Description
Samba是用于 Linux 和 Unix 的标准 Windows 互操作性程序套件。 Samba 存在安全漏洞,该漏洞源于rpcecho开发服务器存在安全漏洞。允许攻击者通过调用AD DC上的sleep()造成拒绝服务(DOS)。
来源: 中国国家信息安全漏洞库 CNNVD
CVSS Information
N/A
来源: 中国国家信息安全漏洞库 CNNVD
Vulnerability Type
N/A
来源: 中国国家信息安全漏洞库 CNNVD
受影响产品
厂商产品影响版本CPE订阅
Red HatRed Hat Enterprise Linux 8 0:4.18.6-2.el8_9 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red HatRed Hat Enterprise Linux 8 0:4.18.6-2.el8_9 ~ * cpe:/o:redhat:enterprise_linux:8::baseos
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support 0:4.15.5-13.el8_6 ~ * cpe:/a:redhat:rhel_eus:8.6::appstream
Red HatRed Hat Enterprise Linux 8.8 Extended Update Support 0:4.17.5-4.el8_8 ~ * cpe:/a:redhat:rhel_eus:8.8::appstream
Red HatRed Hat Enterprise Linux 9 0:4.18.6-101.el9_3 ~ * cpe:/o:redhat:enterprise_linux:9::baseos
Red HatRed Hat Enterprise Linux 9 0:4.18.6-101.el9_3 ~ * cpe:/o:redhat:enterprise_linux:9::baseos
Red HatRed Hat Enterprise Linux 9.0 Extended Update Support 0:4.15.5-111.el9_0 ~ * cpe:/a:redhat:rhel_eus:9.0::appstream
Red HatRed Hat Enterprise Linux 9.2 Extended Update Support 0:4.17.5-104.el9_2 ~ * cpe:/a:redhat:rhel_eus:9.2::crb
Red HatRed Hat Virtualization 4 for Red Hat Enterprise Linux 8 0:4.15.5-13.el8_6 ~ * cpe:/a:redhat:rhel_eus:8.6::appstream
Red HatRed Hat Enterprise Linux 6-cpe:/o:redhat:enterprise_linux:6
Red HatRed Hat Enterprise Linux 6-cpe:/o:redhat:enterprise_linux:6
Red HatRed Hat Enterprise Linux 7-cpe:/o:redhat:enterprise_linux:7
Red HatRed Hat Storage 3-cpe:/a:redhat:storage:3
二、漏洞 CVE-2023-42669 的公开POC
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三、漏洞 CVE-2023-42669 的情报信息
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IV. Related Vulnerabilities
V. Comments for CVE-2023-42669

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