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Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVE-2007-6077

Severity Medium
Score 4.9/10

Summary

The session fixation protection mechanism in cgi_process.rb in Rails before 1.2.6, as used in Ruby on Rails, removes the :cookie_only attribute from the DEFAULT_SESSION_OPTIONS constant, which effectively causes cookie_only to be applied only to the first instantiation of CgiRequest, which allows remote attackers to conduct session fixation attacks. NOTE: this is due to an incomplete fix for CVE-2007-5380.

  • HIGH
  • LOCAL
  • LOW
  • UNCHANGED
  • NONE
  • NONE
  • LOW
  • LOW

CWE-362 - Race Condition

A race condition occurs in a shared memory program when two threads/processes access the same shared memory data, and at least one thread executes a write operation. This vulnerability manipulates the time to check vs. time to use (TOC/TOU) gap between the threads in the critical section to cause disorientation in the shared data. The impact can vary from compromising the confidentiality of the system to causing the system to crash or to execute arbitrary code.

Advisory Timeline

  • Published