CNVD-2020-53122
Vulnerability from cnvd - Published: 2020-09-21
VLAI
Title
Apache Karaf代码问题漏洞
Description
Apache Karaf是美国阿帕奇(Apache)基金会的一款用于部署应用程序和组件的轻量级的OSGi(Java动态化模块化系统)容器。
Apache Karaf 4.2.9之前版本中存在代码问题漏洞。在Karaf中,使用JAAS进行JMX身份验证,使用ACL文件进行授权。默认情况下,只有“admin”可以在MBean上实际调用。但是,对于不是管理员但具有“查看器”角色的人,存在一个漏洞。在……中/jmx.acl.cfg文件,例如role可以调用get*。可以通过MLet getMBeansFromURL方法上的viewer role+调用进行身份验证,该方法转到远程服务器获取所需的MBean,然后在Karaf中注册。此时,攻击失败,因为“viewer”没有在MBean上调用的权限。尽管如此,它仍然可以充当SSRF风格的攻击,并且本质上允许“查看器”角色污染MBean注册表。攻击者可利用该漏洞提升权限。
Severity
中
Patch Name
Apache Karaf代码问题漏洞的补丁
Patch Description
Apache Karaf是美国阿帕奇(Apache)基金会的一款用于部署应用程序和组件的轻量级的OSGi(Java动态化模块化系统)容器。
Apache Karaf 4.2.9之前版本中存在代码问题漏洞。在Karaf中,使用JAAS进行JMX身份验证,使用ACL文件进行授权。默认情况下,只有“admin”可以在MBean上实际调用。但是,对于不是管理员但具有“查看器”角色的人,存在一个漏洞。在……中/jmx.acl.cfg文件,例如role可以调用get*。可以通过MLet getMBeansFromURL方法上的viewer role+调用进行身份验证,该方法转到远程服务器获取所需的MBean,然后在Karaf中注册。此时,攻击失败,因为“viewer”没有在MBean上调用的权限。尽管如此,它仍然可以充当SSRF风格的攻击,并且本质上允许“查看器”角色污染MBean注册表。攻击者可利用该漏洞提升权限。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: http://karaf.apache.org/security/cve-2020-11980.txt
Reference
https://nvd.nist.gov/vuln/detail/CVE-2020-11980
Impacted products
| Name | Apache Karaf <4.2.9 |
|---|
{
"cves": {
"cve": {
"cveNumber": "CVE-2020-11980"
}
},
"description": "Apache Karaf\u662f\u7f8e\u56fd\u963f\u5e15\u5947\uff08Apache\uff09\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u7528\u4e8e\u90e8\u7f72\u5e94\u7528\u7a0b\u5e8f\u548c\u7ec4\u4ef6\u7684\u8f7b\u91cf\u7ea7\u7684OSGi\uff08Java\u52a8\u6001\u5316\u6a21\u5757\u5316\u7cfb\u7edf\uff09\u5bb9\u5668\u3002\n\nApache Karaf 4.2.9\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\u3002\u5728Karaf\u4e2d\uff0c\u4f7f\u7528JAAS\u8fdb\u884cJMX\u8eab\u4efd\u9a8c\u8bc1\uff0c\u4f7f\u7528ACL\u6587\u4ef6\u8fdb\u884c\u6388\u6743\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u6709\u201cadmin\u201d\u53ef\u4ee5\u5728MBean\u4e0a\u5b9e\u9645\u8c03\u7528\u3002\u4f46\u662f\uff0c\u5bf9\u4e8e\u4e0d\u662f\u7ba1\u7406\u5458\u4f46\u5177\u6709\u201c\u67e5\u770b\u5668\u201d\u89d2\u8272\u7684\u4eba\uff0c\u5b58\u5728\u4e00\u4e2a\u6f0f\u6d1e\u3002\u5728\u2026\u2026\u4e2d/jmx.acl.cfg\u6587\u4ef6\uff0c\u4f8b\u5982role\u53ef\u4ee5\u8c03\u7528get*\u3002\u53ef\u4ee5\u901a\u8fc7MLet getMBeansFromURL\u65b9\u6cd5\u4e0a\u7684viewer role+\u8c03\u7528\u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1\uff0c\u8be5\u65b9\u6cd5\u8f6c\u5230\u8fdc\u7a0b\u670d\u52a1\u5668\u83b7\u53d6\u6240\u9700\u7684MBean\uff0c\u7136\u540e\u5728Karaf\u4e2d\u6ce8\u518c\u3002\u6b64\u65f6\uff0c\u653b\u51fb\u5931\u8d25\uff0c\u56e0\u4e3a\u201cviewer\u201d\u6ca1\u6709\u5728MBean\u4e0a\u8c03\u7528\u7684\u6743\u9650\u3002\u5c3d\u7ba1\u5982\u6b64\uff0c\u5b83\u4ecd\u7136\u53ef\u4ee5\u5145\u5f53SSRF\u98ce\u683c\u7684\u653b\u51fb\uff0c\u5e76\u4e14\u672c\u8d28\u4e0a\u5141\u8bb8\u201c\u67e5\u770b\u5668\u201d\u89d2\u8272\u6c61\u67d3MBean\u6ce8\u518c\u8868\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u63d0\u5347\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\nhttp://karaf.apache.org/security/cve-2020-11980.txt",
"isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
"number": "CNVD-2020-53122",
"openTime": "2020-09-21",
"patchDescription": "Apache Karaf\u662f\u7f8e\u56fd\u963f\u5e15\u5947\uff08Apache\uff09\u57fa\u91d1\u4f1a\u7684\u4e00\u6b3e\u7528\u4e8e\u90e8\u7f72\u5e94\u7528\u7a0b\u5e8f\u548c\u7ec4\u4ef6\u7684\u8f7b\u91cf\u7ea7\u7684OSGi\uff08Java\u52a8\u6001\u5316\u6a21\u5757\u5316\u7cfb\u7edf\uff09\u5bb9\u5668\u3002\r\n\r\nApache Karaf 4.2.9\u4e4b\u524d\u7248\u672c\u4e2d\u5b58\u5728\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\u3002\u5728Karaf\u4e2d\uff0c\u4f7f\u7528JAAS\u8fdb\u884cJMX\u8eab\u4efd\u9a8c\u8bc1\uff0c\u4f7f\u7528ACL\u6587\u4ef6\u8fdb\u884c\u6388\u6743\u3002\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u53ea\u6709\u201cadmin\u201d\u53ef\u4ee5\u5728MBean\u4e0a\u5b9e\u9645\u8c03\u7528\u3002\u4f46\u662f\uff0c\u5bf9\u4e8e\u4e0d\u662f\u7ba1\u7406\u5458\u4f46\u5177\u6709\u201c\u67e5\u770b\u5668\u201d\u89d2\u8272\u7684\u4eba\uff0c\u5b58\u5728\u4e00\u4e2a\u6f0f\u6d1e\u3002\u5728\u2026\u2026\u4e2d/jmx.acl.cfg\u6587\u4ef6\uff0c\u4f8b\u5982role\u53ef\u4ee5\u8c03\u7528get*\u3002\u53ef\u4ee5\u901a\u8fc7MLet getMBeansFromURL\u65b9\u6cd5\u4e0a\u7684viewer role+\u8c03\u7528\u8fdb\u884c\u8eab\u4efd\u9a8c\u8bc1\uff0c\u8be5\u65b9\u6cd5\u8f6c\u5230\u8fdc\u7a0b\u670d\u52a1\u5668\u83b7\u53d6\u6240\u9700\u7684MBean\uff0c\u7136\u540e\u5728Karaf\u4e2d\u6ce8\u518c\u3002\u6b64\u65f6\uff0c\u653b\u51fb\u5931\u8d25\uff0c\u56e0\u4e3a\u201cviewer\u201d\u6ca1\u6709\u5728MBean\u4e0a\u8c03\u7528\u7684\u6743\u9650\u3002\u5c3d\u7ba1\u5982\u6b64\uff0c\u5b83\u4ecd\u7136\u53ef\u4ee5\u5145\u5f53SSRF\u98ce\u683c\u7684\u653b\u51fb\uff0c\u5e76\u4e14\u672c\u8d28\u4e0a\u5141\u8bb8\u201c\u67e5\u770b\u5668\u201d\u89d2\u8272\u6c61\u67d3MBean\u6ce8\u518c\u8868\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u63d0\u5347\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": "Apache Karaf\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e\u7684\u8865\u4e01",
"products": {
"product": "Apache Karaf \u003c4.2.9"
},
"referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2020-11980",
"serverity": "\u4e2d",
"submitTime": "2020-06-15",
"title": "Apache Karaf\u4ee3\u7801\u95ee\u9898\u6f0f\u6d1e"
}
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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