CNVD-2015-08522

Vulnerability from cnvd - Published: 2015-12-31
VLAI
Title
Samba绕过访问权限漏洞
Description
Samba是一套实现SMB（Server Messages Block）协议、跨平台进行文件共享和打印共享服务的程序。 Samba 4.1.22之前的4.x版本, 4.2.7之前的4.2.x版本, 4.3.3之前的4.3.x版本/vfs_shadow_copy2.c模块中的shadow_copy2_get_shadow_copy_data函数存在绕过访问权限漏洞。由于未验证directory_list的访问权限，允许远程攻击者通过访问卷影副本目录来访问快照内容。
Severity
中
Patch Name
Samba绕过访问权限漏洞的补丁
Patch Description
Samba是一套实现SMB（Server Messages Block）协议、跨平台进行文件共享和打印共享服务的程序。 Samba 4.1.22之前的4.x版本, 4.2.7之前的4.2.x版本, 4.3.3之前的4.3.x版本/vfs_shadow_copy2.c模块中的shadow_copy2_get_shadow_copy_data函数存在绕过访问权限漏洞。由于未验证directory_list的访问权限，允许远程攻击者通过访问卷影副本目录来访问快照内容。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。
Formal description

用户可联系供应商获得补丁信息： https://www.samba.org/samba/history/security.html

Reference
https://www.samba.org/samba/security/CVE-2015-5299.html
Impacted products
Name
['Samba Samba 4.x(<4.1.22)', 'Samba Samba 4.2.x(<4.2.7)', 'Samba Samba 4.3.x(< 4.3.3)']
Show details on source website
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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-5299"
    }
  },
  "description": "Samba\u662f\u4e00\u5957\u5b9e\u73b0SMB\uff08Server Messages Block\uff09\u534f\u8bae\u3001\u8de8\u5e73\u53f0\u8fdb\u884c\u6587\u4ef6\u5171\u4eab\u548c\u6253\u5370\u5171\u4eab\u670d\u52a1\u7684\u7a0b\u5e8f\u3002\r\n\r\nSamba 4.1.22\u4e4b\u524d\u76844.x\u7248\u672c, 4.2.7\u4e4b\u524d\u76844.2.x\u7248\u672c, 4.3.3\u4e4b\u524d\u76844.3.x\u7248\u672c/vfs_shadow_copy2.c\u6a21\u5757\u4e2d\u7684shadow_copy2_get_shadow_copy_data\u51fd\u6570\u5b58\u5728\u7ed5\u8fc7\u8bbf\u95ee\u6743\u9650\u6f0f\u6d1e\u3002\u7531\u4e8e\u672a\u9a8c\u8bc1directory_list\u7684\u8bbf\u95ee\u6743\u9650\uff0c\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u901a\u8fc7\u8bbf\u95ee\u5377\u5f71\u526f\u672c\u76ee\u5f55\u6765\u8bbf\u95ee\u5feb\u7167\u5185\u5bb9\u3002",
  "discovererName": "partha@exablox.com",
  "formalWay": "\u7528\u6237\u53ef\u8054\u7cfb\u4f9b\u5e94\u5546\u83b7\u5f97\u8865\u4e01\u4fe1\u606f\uff1a\r\nhttps://www.samba.org/samba/history/security.html",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2015-08522",
  "openTime": "2015-12-31",
  "patchDescription": "Samba\u662f\u4e00\u5957\u5b9e\u73b0SMB\uff08Server Messages Block\uff09\u534f\u8bae\u3001\u8de8\u5e73\u53f0\u8fdb\u884c\u6587\u4ef6\u5171\u4eab\u548c\u6253\u5370\u5171\u4eab\u670d\u52a1\u7684\u7a0b\u5e8f\u3002\r\n\r\nSamba 4.1.22\u4e4b\u524d\u76844.x\u7248\u672c, 4.2.7\u4e4b\u524d\u76844.2.x\u7248\u672c, 4.3.3\u4e4b\u524d\u76844.3.x\u7248\u672c/vfs_shadow_copy2.c\u6a21\u5757\u4e2d\u7684shadow_copy2_get_shadow_copy_data\u51fd\u6570\u5b58\u5728\u7ed5\u8fc7\u8bbf\u95ee\u6743\u9650\u6f0f\u6d1e\u3002\u7531\u4e8e\u672a\u9a8c\u8bc1directory_list\u7684\u8bbf\u95ee\u6743\u9650\uff0c\u5141\u8bb8\u8fdc\u7a0b\u653b\u51fb\u8005\u901a\u8fc7\u8bbf\u95ee\u5377\u5f71\u526f\u672c\u76ee\u5f55\u6765\u8bbf\u95ee\u5feb\u7167\u5185\u5bb9\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Samba\u7ed5\u8fc7\u8bbf\u95ee\u6743\u9650\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Samba Samba  4.x(\u003c4.1.22)",
      "Samba Samba  4.2.x(\u003c4.2.7)",
      "Samba Samba  4.3.x(\u003c 4.3.3)"
    ]
  },
  "referenceLink": "https://www.samba.org/samba/security/CVE-2015-5299.html",
  "serverity": "\u4e2d",
  "submitTime": "2015-12-30",
  "title": "Samba\u7ed5\u8fc7\u8bbf\u95ee\u6743\u9650\u6f0f\u6d1e"
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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