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Oracle Access Manager - Remote Code Execution

ID: CVE-2021-35587

Severity: critical

Author: cckuailong

Tags: cve2021,cve,oam,rce,java,unauth,oracle,kev

Description

Section titled “Description”

The Oracle Access Manager portion of Oracle Fusion Middleware (component: OpenSSO Agent) is vulnerable to remote code execution. Supported versions that are affected are 11.1.2.3.0, 12.2.1.3.0 and 12.2.1.4.0. This is an easily exploitable vulnerability that allows unauthenticated attackers with network access via HTTP to compromise Oracle Access Manager.

YAML Source

Section titled “YAML Source”
id: CVE-2021-35587


info:
  name: Oracle Access Manager - Remote Code Execution
  author: cckuailong
  severity: critical
  description: |
    The Oracle Access Manager  portion of Oracle Fusion Middleware (component: OpenSSO Agent) is vulnerable to remote code execution. Supported versions that are affected are 11.1.2.3.0, 12.2.1.3.0 and 12.2.1.4.0. This is an easily exploitable vulnerability that allows unauthenticated attackers with network access via HTTP to compromise Oracle Access Manager.
  impact: |
    Successful exploitation of this vulnerability could allow an attacker to execute arbitrary code on the affected system.
  remediation: |
    Apply the latest security patches provided by Oracle to mitigate this vulnerability.
  reference:
    - https://testbnull.medium.com/oracle-access-manager-pre-auth-rce-cve-2021-35587-analysis-1302a4542316
    - https://nvd.nist.gov/vuln/detail/CVE-2021-35587
    - https://www.oracle.com/security-alerts/cpujan2022.html
    - https://github.com/ARPSyndicate/kenzer-templates
    - https://github.com/GrrrDog/Java-Deserialization-Cheat-Sheet
  classification:
    cvss-metrics: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    cvss-score: 9.8
    cve-id: CVE-2021-35587
    cwe-id: CWE-502
    epss-score: 0.95643
    epss-percentile: 0.99283
    cpe: cpe:2.3:a:oracle:access_manager:11.1.2.3.0:*:*:*:*:*:*:*
  metadata:
    verified: true
    max-request: 1
    vendor: oracle
    product: access_manager
    shodan-query:
      - http.title:"Oracle Access Management"
      - http.title:"oracle access management"
      - http.html:"/oam/pages/css/login_page.css"
    fofa-query:
      - body="/oam/pages/css/login_page.css"
      - title="oracle access management"
    google-query: intitle:"oracle access management"
  tags: cve2021,cve,oam,rce,java,unauth,oracle,kev


http:
  - method: GET
    path:
      - '{{BaseURL}}/oam/server/opensso/sessionservice'


    matchers-condition: and
    matchers:
      - type: word
        part: header
        words:
          - "x-oracle-dms-ecid"
          - "x-oracle-dms-rid"
        case-insensitive: true
        condition: or


      - type: word
        part: body
        words:
          - "/oam/pages/css/general.css"


      - type: status
        status:
          - 200
# digest: 4a0a00473045022100d275ba1d55f9ae486d9d5f81411a597e82b6fcd8d84597c38b5ec73c0d88be0202201b145b0ac5a731020c4cfccaadec94b796e0ac225086a61c2baa738e73c21a2f:922c64590222798bb761d5b6d8e72950

Guide to check the vulnerabilities

Section titled “Guide to check the vulnerabilities”

This template is used to detect vulnerabilities in web applications. It can be used with the Nuclei tool to scan for specific patterns or behaviors.

Terminal window
$ nuclei -u "URL" -t "http/cves/2021/CVE-2021-35587.yaml"

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