F5 BIG-IP – Authentication Bypass (PoC)

  • 作者: Florent Daigniere
    日期: 2012-06-11
  • 类别:
    平台:
  • 来源:https://www.exploit-db.com/exploits/19064/
  • Matta Consulting - Matta Advisory
    https://www.trustmatta.com
    
    F5 BIG-IP remote root authentication bypass Vulnerability
    
    Advisory ID: MATTA-2012-002
    CVE reference: CVE-2012-1493
    Affected platforms: BIG-IP platforms without SCCP
    Version: 11.x 10.x 9.x
    Date: 2012-February-16
    Security risk: High
    Vulnerability: F5 BIG-IP remote root authentication bypass
    Researcher: Florent Daigniere
    Vendor Status: Notified / Patch available
    Vulnerability Disclosure Policy:
     https://www.trustmatta.com/advisories/matta-disclosure-policy-01.txt
    Permanent URL:
     https://www.trustmatta.com/advisories/MATTA-2012-002.txt
    
    =====================================================================
    Description:
    
    Vulnerable BIG-IP installations allow unauthenticated users to bypass
     authentication and login as the 'root' user on the device. 
    
    The SSH private key corresponding to the following public key is
     public and present on all vulnerable appliances:
    
    ssh-rsa
    AAAAB3NzaC1yc2EAAAABIwAAAIEAvIhC5skTzxyHif/7iy3yhxuK6/OB13hjPqrskogkYFrcW8OK4VJT+5+Fx7wd4sQCnVn8rNqahw/x6sfcOMDI/Xvn4yKU4t8TnYf2MpUVr4ndz39L5Ds1n7Si1m2suUNxWbKv58I8+NMhlt2ITraSuTU0NGymWOc8+LNi+MHXdLk=
     SCCP Superuser
    
    Its fingerprint is:
    71:3a:b0:18:e2:6c:41:18:4e:56:1e:fd:d2:49:97:66
    
    =====================================================================
    Impact
    
    If successful, a malicious third party can get full control of the
     device with little to no effort. The Attacker might reposition and
     launch an attack against other parts of the target infrastructure
     from there.
    
    =====================================================================
    Versions affected:
    
    BIG-IP version 11.1.0 build 1943.0 tested. 
    
    The vendor reports that the following versions are patched:
    9.4.8-HF5 and later 
    10.2.4 and later 
    11.0.0-HF2 and later 
    11.1.0-HF3 and later 
    
    http://support.f5.com/kb/en-us/solutions/public/13000/600/sol13600.html
    
    =====================================================================
    Credits
    
    This vulnerability was discovered and researched by Florent Daigniere
     from Matta Consulting.
    
    =====================================================================
    History
    
    16-02-12 initial discovery
    22-02-12 initial attempt to contact the vendor
    24-02-12 reply from David Wang, case C1062228 is open
    24-02-12 draft of the advisory sent to the vendor
    01-03-12 CVE-2012-1493 is assigned
    06-04-12 James Affeld starts coordinating the notification effort
    23-05-12 F5 notifies us that patches are ready
    29-05-12 F5 sends advance notification to some customers
    06-06-12 Public disclosure
    
    =====================================================================
    About Matta
    
    Matta is a privately held company with Headquarters in London, and a
     European office in Amsterdam. Established in 2001, Matta operates
     in Europe, Asia, the Middle East and North America using a respected
     team of senior consultants.Matta is an accredited provider of
     Tiger Scheme training; conducts regular research and is the developer
     behind the webcheck application scanner, and colossus network scanner.
    
    https://www.trustmatta.com
    https://www.trustmatta.com/training.html
    https://www.trustmatta.com/webapp_va.html
    https://www.trustmatta.com/network_va.html
    
    =====================================================================
    Disclaimer and Copyright
    
    Copyright (c) 2012 Matta Consulting Limited. All rights reserved.
    This advisory may be distributed as long as its distribution is
     free-of-charge and proper credit is given.
    
    The information provided in this advisory is provided "as is" without
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     express or implied, including the warranties of merchantability and
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