cnvd-2020-50123
Vulnerability from cnvd
Title
Zsh权限提升漏洞（CNVD-2020-50123）
Description
Zsh是一款可用作交互式登录的shell及脚本编写的命令解释器。 Zsh 5.8之前版本中存在安全漏洞，该漏洞源于程序未能覆盖原来存储的uid。攻击者可利用该漏洞恢复原来的权限。
Severity
高
Patch Name
Zsh权限提升漏洞（CNVD-2020-50123）的补丁
Patch Description
Zsh是一款可用作交互式登录的shell及脚本编写的命令解释器。 Zsh 5.8之前版本中存在安全漏洞，该漏洞源于程序未能覆盖原来存储的uid。攻击者可利用该漏洞恢复原来的权限。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

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://www.zsh.org/mla/zsh-announce/141

Reference
https://access.redhat.com/errata/RHSA-2020:0892; http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20044
Impacted products
Name
Zsh Zsh <5.8
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-20044",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2019-20044"
    }
  },
  "description": "Zsh\u662f\u4e00\u6b3e\u53ef\u7528\u4f5c\u4ea4\u4e92\u5f0f\u767b\u5f55\u7684shell\u53ca\u811a\u672c\u7f16\u5199\u7684\u547d\u4ee4\u89e3\u91ca\u5668\u3002\n\nZsh 5.8\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u8986\u76d6\u539f\u6765\u5b58\u50a8\u7684uid\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6062\u590d\u539f\u6765\u7684\u6743\u9650\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://www.zsh.org/mla/zsh-announce/141",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2020-50123",
  "openTime": "2020-09-02",
  "patchDescription": "Zsh\u662f\u4e00\u6b3e\u53ef\u7528\u4f5c\u4ea4\u4e92\u5f0f\u767b\u5f55\u7684shell\u53ca\u811a\u672c\u7f16\u5199\u7684\u547d\u4ee4\u89e3\u91ca\u5668\u3002\r\n\r\nZsh 5.8\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u8986\u76d6\u539f\u6765\u5b58\u50a8\u7684uid\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u6062\u590d\u539f\u6765\u7684\u6743\u9650\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": "Zsh\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2020-50123\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Zsh Zsh \u003c5.8"
  },
  "referenceLink": "https://access.redhat.com/errata/RHSA-2020:0892; http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-20044",
  "serverity": "\u9ad8",
  "submitTime": "2020-03-19",
  "title": "Zsh\u6743\u9650\u63d0\u5347\u6f0f\u6d1e\uff08CNVD-2020-50123\uff09"
}


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