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Text File  |  2005-01-14  |  3KB  |  111 lines
  1. #
  2. # (C) Tenable Network Security
  3. #
  4. # This plugin text was extracted from Mandrake Linux Security Advisory MDKSA-2004:031-1
  5. #
  6.  
  7.  
  8. if ( ! defined_func("bn_random") ) exit(0);
  9. if(description)
  10. {
  11.  script_id(14130);
  12.  script_version ("$Revision: 1.3 $");
  13.  script_cve_id("CAN-2004-0233");
  14.  
  15.  name["english"] = "MDKSA-2004:031-1: utempter";
  16.  
  17.  script_name(english:name["english"]);
  18.  
  19.  desc["english"] = "
  20. The remote host is missing the patch for the advisory MDKSA-2004:031-1 (utempter).
  21.  
  22.  
  23. Steve Grubb discovered two potential issues in the utempter program:
  24. 1) If the path to the device contained /../ or /./ or //, the program was not
  25. exiting as it should. It would be possible to use something like
  26. /dev/../tmp/tty0, and then if /tmp/tty0 were deleted and symlinked to another
  27. important file, programs that have root privileges that do no further validation
  28. can then overwrite whatever the symlink pointed to. 2) Several calls to strncpy
  29. without a manual termination of the string. This would most likely crash
  30. utempter.
  31. The updated packages are patched to correct these problems.
  32. Update:
  33. The second portion of the patch to address the manual termination of the string
  34. has been determined to be uneccessary, as well as reducing the length of utmp
  35. strings by one character. As such, it has been removed.
  36.  
  37.  
  38. Solution : http://www.mandrakesoft.com/security/advisories?name=MDKSA-2004:031-1
  39. Risk factor : High";
  40.  
  41.  
  42.  
  43.  script_description(english:desc["english"]);
  44.  
  45.  summary["english"] = "Check for the version of the utempter package";
  46.  script_summary(english:summary["english"]);
  47.  
  48.  script_category(ACT_GATHER_INFO);
  49.  
  50.  script_copyright(english:"This script is Copyright (C) 2004 Tenable Network Security");
  51.  family["english"] = "Mandrake Local Security Checks";
  52.  script_family(english:family["english"]);
  53.  
  54.  script_dependencies("ssh_get_info.nasl");
  55.  script_require_keys("Host/Mandrake/rpm-list");
  56.  exit(0);
  57. }
  58.  
  59. include("rpm.inc");
  60. if ( rpm_check( reference:"libutempter0-0.5.2-12.2.100mdk", release:"MDK10.0", yank:"mdk") )
  61. {
  62.  security_hole(0);
  63.  exit(0);
  64. }
  65. if ( rpm_check( reference:"libutempter0-devel-0.5.2-12.2.100mdk", release:"MDK10.0", yank:"mdk") )
  66. {
  67.  security_hole(0);
  68.  exit(0);
  69. }
  70. if ( rpm_check( reference:"utempter-0.5.2-12.2.100mdk", release:"MDK10.0", yank:"mdk") )
  71. {
  72.  security_hole(0);
  73.  exit(0);
  74. }
  75. if ( rpm_check( reference:"libutempter0-0.5.2-10.2.91mdk", release:"MDK9.1", yank:"mdk") )
  76. {
  77.  security_hole(0);
  78.  exit(0);
  79. }
  80. if ( rpm_check( reference:"libutempter0-devel-0.5.2-10.2.91mdk", release:"MDK9.1", yank:"mdk") )
  81. {
  82.  security_hole(0);
  83.  exit(0);
  84. }
  85. if ( rpm_check( reference:"utempter-0.5.2-10.2.91mdk", release:"MDK9.1", yank:"mdk") )
  86. {
  87.  security_hole(0);
  88.  exit(0);
  89. }
  90. if ( rpm_check( reference:"libutempter0-0.5.2-12.2.92mdk", release:"MDK9.2", yank:"mdk") )
  91. {
  92.  security_hole(0);
  93.  exit(0);
  94. }
  95. if ( rpm_check( reference:"libutempter0-devel-0.5.2-12.2.92mdk", release:"MDK9.2", yank:"mdk") )
  96. {
  97.  security_hole(0);
  98.  exit(0);
  99. }
  100. if ( rpm_check( reference:"utempter-0.5.2-12.2.92mdk", release:"MDK9.2", yank:"mdk") )
  101. {
  102.  security_hole(0);
  103.  exit(0);
  104. }
  105. if (rpm_exists(rpm:"utempter-", release:"MDK10.0")
  106.  || rpm_exists(rpm:"utempter-", release:"MDK9.1")
  107.  || rpm_exists(rpm:"utempter-", release:"MDK9.2") )
  108. {
  109.  set_kb_item(name:"CAN-2004-0233", value:TRUE);
  110. }
  111.