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CVE-2021-23192

Quick assessment

Affected
n/a samba
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Samba是用于 Linux 和 Unix 的标准 Windows 互操作性程序套件。 Samba存在输入验证错误漏洞，该漏洞源于在 samba 实现 DCE/RPC 的方式中发现了一个缺陷。如果 Samba 服务器的客户端发送了一个非常大的 DCE/RPC 请求，并选择对其进行分段，则攻击者可以用自己的数据替换后面的分段，从而绕过签名要求。

AI Predicted 8.8 Difficulty: Moderate EPSS 1.95% · P79

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2021-23192

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A flaw was found in the way samba implemented DCE/RPC. If a client to a Samba server sent a very large DCE/RPC request, and chose to fragment it, an attacker could replace later fragments with their own data, bypassing the signature requirements.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5
Vulnerability Title
Samba输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Samba是用于 Linux 和 Unix 的标准 Windows 互操作性程序套件。 Samba存在输入验证错误漏洞，该漏洞源于在 samba 实现 DCE/RPC 的方式中发现了一个缺陷。如果 Samba 服务器的客户端发送了一个非常大的 DCE/RPC 请求，并选择对其进行分段，则攻击者可以用自己的数据替换后面的分段，从而绕过签名要求。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- samba Affects samba v4.10.0 to 4.15.1, Fixed in samba v4.15.2, v4.14.10 and v4.13.14. -

II. Public POCs for CVE-2021-23192

# POC Description Source Link Shenlong Link
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III. Intelligence Information for CVE-2021-23192

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Vendor Advisories for CVE-2021-23192 (3)

Other References for CVE-2021-23192 (1)

Same Patch Batch · n/a · 2022-03-02 · 61 CVEs total

CVE-2022-23953 HP PC 输入验证错误漏洞
CVE-2021-3738 Samba 资源管理错误漏洞
CVE-2021-3654 OpenStack 输入验证错误漏洞
CVE-2021-3631 Red Hat libvirt 安全漏洞
CVE-2021-23222 PostgreSQL 安全漏洞
CVE-2021-3667 Red Hat libvirt 安全漏洞
CVE-2021-38268 Liferay Portal 安全漏洞
CVE-2022-22944 Vmware Workspace One Boxer 跨站脚本漏洞
CVE-2022-25045 Home Owners Collection Management System 信任管理问题漏洞
CVE-2022-23956 HP PC 输入验证错误漏洞
CVE-2022-23878 SeaCMS 安全漏洞
CVE-2022-23954 HP PC 输入验证错误漏洞
CVE-2022-23955 HP PC 输入验证错误漏洞
CVE-2022-23958 HP PC 输入验证错误漏洞
CVE-2022-23957 HP PC 输入验证错误漏洞
CVE-2021-41001 Aruba AOS-CX 命令注入漏洞
CVE-2021-41000 Aruba AOS-CX 命令注入漏洞
CVE-2021-41002 Aruba AOS-CX 路径遍历漏洞
CVE-2021-41003 Aruba AOS-CX 跨站脚本漏洞
CVE-2022-0711 Haproxy HAProxy 安全漏洞

Showing top 20 of 61 CVEs. View all on vendor page → →

IV. Related Vulnerabilities

Same product: samba
Same vendor: n/a
Same weakness: CWE-20

V. Comments for CVE-2021-23192

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