Java on Apple Mac OS X HMAC code execution

java-macos-hmac-code-execution (45396) The risk level is classified as HighHigh Risk

Description:

Java on Apple Mac OS X could allow a remote attacker to execute arbitrary code on the system, caused by the use of an uninitialized variable by the hash-based Message Authentication Code (HMAC) provider. By persuading a victim to visit a specially-crafted Web site and download an untrusted applet, a remote attacker could exploit this vulnerability to execute arbitrary code on the vulnerable system.

*CVSS:

Base Score: 6.8
  Access Vector: Network
  Access Complexity: Medium
  Authentication: None
  Confidentiality Impact: Partial
  Integrity Impact: Partial
  Availability Impact: Partial
 
Temporal Score: 5
  Exploitability: Unproven
  Remediation Level: Official-Fix
  Report Confidence: Confirmed

Consequences:

Gain Access

Remedy:

For Java for Mac OS X 10.5:
Apply Apple Security Update 2, available from the Apple Web site. See References.

For Java for Mac OS X 10.4:
Apply Apple Security Release 7, available from the Apple Web site. See References.

References:

  • Apple Web site: About the security content of Java for Mac OS X 10.5 Update 2 . (CVE-2008-3637, CVE-2008-3638)
  • Apple Web site: About the security content of Java for Mac OS X 10.4, Release 7 . (CVE-2008-3637)
  • BID-31379: Apple Mac OS X Java Applet HMAC Provider Handling Remote Code Execution Vulnerability
  • CVE-2008-3637: The Hash-based Message Authentication Code (HMAC) provider in Java on Apple Mac OS X 10.4.11, 10.5.4, and 10.5.5 uses an uninitialized variable, which allows remote attackers to execute arbitrary code via a crafted applet, related to an error checking issue.
  • OSVDB ID: 49091: Java on Apple Mac OS X HMAC Provider Crafted Applet Arbitrary Code Execution
  • SA32018: Mac OS X Java Multiple Vulnerabilities
  • SECTRACK ID: 1020943: Java on Mac OS X HMAC Bug Lets Remote Users Execute Arbitrary Code

Platforms Affected:

  • Apple Mac OS X 10.4.11
  • Apple Mac OS X 10.5.4
  • Apple Mac OS X Server 10.4.11
  • Apple Mac OS X Server 10.5.4

Reported:

Sep 24, 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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