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Microsoft SQL Server远程代码执行漏洞(CVE-2019-1068)

2019-07-15 18:56:20 公开 ,2026-08-27 02:44:42 更新

  • APT漏洞
  • CISA KEV
  • 关键漏洞
  • 远程
  • CWE Top 25 (2023)
  • CWE Top 25 (2024)
  • 公开PoC
CWEs:
CWE-20 (Improper Input Validation)
CAPEC:
CAPEC-10 (Buffer Overflow via Environment Variables) CAPEC-101 (Server Side Include (SSI) Injection) CAPEC-104 (Cross Zone Scripting) CAPEC-108 (Command Line Execution through SQL Injection) CAPEC-109 (Object Relational Mapping Injection) CAPEC-110 (SQL Injection through SOAP Parameter Tampering) CAPEC-120 (Double Encoding) CAPEC-13 (Subverting Environment Variable Values) CAPEC-135 (Format String Injection) CAPEC-136 (LDAP Injection) CAPEC-14 (Client-side Injection-induced Buffer Overflow) CAPEC-153 (Input Data Manipulation) CAPEC-182 (Flash Injection) CAPEC-209 (XSS Using MIME Type Mismatch) CAPEC-22 (Exploiting Trust in Client) CAPEC-23 (File Content Injection) CAPEC-230 (Serialized Data with Nested Payloads) CAPEC-231 (Oversized Serialized Data Payloads) CAPEC-24 (Filter Failure through Buffer Overflow) CAPEC-250 (XML Injection) CAPEC-261 (Fuzzing for garnering other adjacent user/sensitive data) CAPEC-267 (Leverage Alternate Encoding) CAPEC-28 (Fuzzing) CAPEC-3 (Using Leading 'Ghost' Character Sequences to Bypass Input Filters) CAPEC-31 (Accessing/Intercepting/Modifying HTTP Cookies) CAPEC-42 (MIME Conversion) CAPEC-43 (Exploiting Multiple Input Interpretation Layers) CAPEC-45 (Buffer Overflow via Symbolic Links) CAPEC-46 (Overflow Variables and Tags) CAPEC-47 (Buffer Overflow via Parameter Expansion) CAPEC-473 (Signature Spoof) CAPEC-52 (Embedding NULL Bytes) CAPEC-53 (Postfix, Null Terminate, and Backslash) CAPEC-588 (DOM-Based XSS) CAPEC-63 (Cross-Site Scripting (XSS)) CAPEC-64 (Using Slashes and URL Encoding Combined to Bypass Validation Logic) CAPEC-664 (Server Side Request Forgery) CAPEC-67 (String Format Overflow in syslog()) CAPEC-7 (Blind SQL Injection) CAPEC-71 (Using Unicode Encoding to Bypass Validation Logic) CAPEC-72 (URL Encoding) CAPEC-73 (User-Controlled Filename) CAPEC-78 (Using Escaped Slashes in Alternate Encoding) CAPEC-79 (Using Slashes in Alternate Encoding) CAPEC-8 (Buffer Overflow in an API Call) CAPEC-80 (Using UTF-8 Encoding to Bypass Validation Logic) CAPEC-81 (Web Server Logs Tampering) CAPEC-83 (XPath Injection) CAPEC-85 (AJAX Footprinting) CAPEC-88 (OS Command Injection) CAPEC-9 (Buffer Overflow in Local Command-Line Utilities)

风险信息

CVSS v2 向量
AV:N/AC:L/Au:S/C:P/I:P/A:P
CVSS v2 风险值
6.5
CVSS v3 向量
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v3 风险值
8.8
CVSS v3.1 向量
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v3.1 风险值
8.8

详细信息

漏洞类型
输入验证错误
漏洞描述
Microsoft SQL Server svl.dll存在路径校验缺陷。易受影响版本的SvlPathUtilHasDriveLetter在判断Windows盘符路径时,只验证首字符为字母、第二字符为冒号,却未继续确认第三字符是否为 \ 或 /。已认证的攻击者可在特制SQL查询中提交如C:任意内容的畸形路径,使其被错误地当作合法绝对路径继续处理,进而在路径规范化和FILESTREAM保留路径检查过程中反复调用sqlmin!CheckFileStreamReserved,造成无限递归与栈耗尽,最终使 SQL Server服务崩溃。并在成功利用条件下可在SQL Server Database Engine服务账户上下文执行代码。
修复建议
目前厂商已发布升级补丁以修复漏洞,补丁获取链接: https://portal.msrc.microsoft.com/zh-CN/security-guidance/advisory/CVE-2019-1068

参考链接