CVE-2018-20217
Quick assessment
Affected
n/a n/a
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.
MIT krb5（又名MIT Kerberos 5）是美国麻省理工（Massachusetts Institute of Technology）学院的一套网络认证协议，它采用客户端/服务器结构，并且客户端和服务器端均可对对方进行身份认证（即双重验证），可防止窃听、防止replay攻击等。 MIT Kerberos 5 1.17之前版本中的KDC存在输入验证错误漏洞。攻击者可通过发送S4U2Self请求利用该漏洞造成KDC崩溃。
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I. Basic Information for CVE-2018-20217
Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
A Reachable Assertion issue was discovered in the KDC in MIT Kerberos 5 (aka krb5) before 1.17. If an attacker can obtain a krbtgt ticket using an older encryption type (single-DES, triple-DES, or RC4), the attacker can crash the KDC by making an S4U2Self request.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
MIT Kerberos 5 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
MIT krb5（又名MIT Kerberos 5）是美国麻省理工（Massachusetts Institute of Technology）学院的一套网络认证协议，它采用客户端/服务器结构，并且客户端和服务器端均可对对方进行身份认证（即双重验证），可防止窃听、防止replay攻击等。 MIT Kerberos 5 1.17之前版本中的KDC存在输入验证错误漏洞。攻击者可通过发送S4U2Self请求利用该漏洞造成KDC崩溃。
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 |
|---|---|---|---|---|
| - | n/a | n/a | - |
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II. Public POCs for CVE-2018-20217
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2018-20217 (1)
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https://github.com/krb5/krb5/commit/5e6d1796106df8ba6bc1973ee0917c170d929086 x_refsource_CONFIRM
Vendor Advisories for CVE-2018-20217 (1)
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https://security.netapp.com/advisory/ntap-20190416-0006/ x_refsource_CONFIRM
Mailing List Discussions for CVE-2018-20217 (2)
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https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2KNHELH4YHNT6H2ESJWX2UIDXLBNGB2O/ vendor-advisory x_refsource_FEDORA
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Other References for CVE-2018-20217 (1)
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http://krbdev.mit.edu/rt/Ticket/Display.html?id=8763 x_refsource_CONFIRM
Same Patch Batch · n/a · 2018-12-26 · 30 CVEs total
| CVE-2018-19871 | Digia Qt 资源管理错误漏洞 | |
| CVE-2018-20480 | S-CMS SQL注入漏洞 | |
| CVE-2018-20479 | S-CMS SQL注入漏洞 | |
| CVE-2018-20478 | S-CMS 安全漏洞 | |
| CVE-2018-20477 | S-CMS SQL注入漏洞 | |
| CVE-2018-20476 | S-CMS 跨站脚本漏洞 | |
| CVE-2018-20467 | ImageMagick 资源管理错误漏洞 | |
| CVE-2018-20481 | Poppler 安全漏洞 | |
| CVE-2018-20485 | ZOHO ManageEngine ADSelfService Plus 安全漏洞 | |
| CVE-2018-20484 | ZOHO ManageEngine ADSelfService Plus 跨站脚本漏洞 | |
| CVE-2018-20483 | GNU Wget 信息泄露漏洞 | |
| CVE-2018-20482 | GNU Tar 安全漏洞 | |
| CVE-2018-20486 | MetInfo 跨站脚本漏洞 | |
| CVE-2018-20404 | VIA Technologies EPIA-E900系统主板ETK_E900.sys SmartETK驱动程序安全漏洞 | |
| CVE-2018-19873 | Digia Qt 缓冲区错误漏洞 | |
| CVE-2018-20502 | Bento4 安全漏洞 | |
| CVE-2018-19870 | Digia Qt 代码问题漏洞 | |
| CVE-2018-19869 | Digia Qt 输入验证错误漏洞 | |
| CVE-2018-19799 | Dolibarr ERP/CRM 跨站脚本漏洞 | |
| CVE-2018-19616 | Rockwell Automation Allen-Bradley PowerMonitor 1000 访问控制错误漏洞 |
Showing top 20 of 30 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
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