Asterisk HTTP Manager ID weak security

asterisk-httpmanagerid-weak-security (41304) The risk level is classified as LowLow Risk

Description:

Asterisk could provide weaker than expected security. The HTTP Manager ID is created with insufficient randomization. By using a network sniffing tool, a remote attacker could obtain MD5 digest authentication challenges to predict AsteriskGUI session identifiers, which could then be leveraged to hijack an established session.

*CVSS:

Base Score: 4.3
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: Partial
  Integrity Impact: None
  Availability Impact: None
 
Temporal Score: 3.2
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Other

Remedy:

Refer to AST-2008-005 for patch, upgrade or suggested workaround information. See References.

References:

  • AST-2008-005: HTTP Manager ID is predictable.
  • BID-28316: Asterisk Predictable HTTP Manager Session ID Security Bypass Vulnerability
  • CVE-2008-1390: The AsteriskGUI HTTP server in Asterisk Open Source 1.4.x before 1.4.19-rc3 and 1.6.x before 1.6.0-beta6, Business Edition C.x.x before C.1.6, AsteriskNOW before 1.0.2, Appliance Developer Kit before revision 104704, and s800i 1.0.x before 1.1.0.2 generates insufficiently random manager ID values, which makes it easier for remote attackers to hijack a manager session via a series of ID guesses.
  • SA29449: Asterisk Predictable HTTP Manager ID Weakness
  • SECTRACK ID: 1019679: Asterisk Predictable Session IDs May Let Remote Users Hijack HTTP Manager Sessions

Platforms Affected:

  • Digium Asterisk Appliance Developer Kit SVN prior to 104704
  • Digium Asterisk Business Edition C.x.x prior to C.1.6
  • Digium Asterisk Open Source 1.4.x prior to 1.4.19-rc3
  • Digium Asterisk Open Source 1.6.x prior to 1.6.0-beta6
  • Digium AsteriskNOW pre-release prior to 1.0.2
  • Digium s800i 1.0.x prior to 1.1.0.2

Reported:

Mar 19, 2008

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The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall IBM be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.

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