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Text File  |  2005-01-14  |  4.9 KB  |  185 lines
  1. #
  2. # (C) Tenable Network Security
  3. #
  4. # This plugin text was extracted from Mandrake Linux Security Advisory MDKSA-2004:056-1
  5. #
  6.  
  7.  
  8. if ( ! defined_func("bn_random") ) exit(0);
  9. if(description)
  10. {
  11.  script_id(14155);
  12.  script_version ("$Revision: 1.4 $");
  13.  script_bugtraq_id(10448);
  14.  script_cve_id("CAN-2004-0523");
  15.  
  16.  name["english"] = "MDKSA-2004:056-1: krb5";
  17.  
  18.  script_name(english:name["english"]);
  19.  
  20.  desc["english"] = "
  21. The remote host is missing the patch for the advisory MDKSA-2004:056-1 (krb5).
  22.  
  23.  
  24. Multiple buffer overflows exist in the krb5_aname_to_localname() library
  25. function that if exploited could lead to unauthorized root privileges. In order
  26. to exploit this flaw, an attacker must first successfully authenticate to a
  27. vulnerable service, which must be configured to enable the explicit mapping or
  28. rules-based mapping functionality of krb5_aname_to_localname, which is not a
  29. default configuration.
  30. Mandrakesoft encourages all users to upgrade to these patched krb5 packages.
  31. Update:
  32. The original patch provided contained a bug where rule-based entries on systems
  33. without HAVE_REGCOMP would not work. These updated packages provide the second
  34. patch provided by Kerberos development team which fixes that behaviour.
  35.  
  36.  
  37. Solution : http://www.mandrakesoft.com/security/advisories?name=MDKSA-2004:056-1
  38. Risk factor : High";
  39.  
  40.  
  41.  
  42.  script_description(english:desc["english"]);
  43.  
  44.  summary["english"] = "Check for the version of the krb5 package";
  45.  script_summary(english:summary["english"]);
  46.  
  47.  script_category(ACT_GATHER_INFO);
  48.  
  49.  script_copyright(english:"This script is Copyright (C) 2004 Tenable Network Security");
  50.  family["english"] = "Mandrake Local Security Checks";
  51.  script_family(english:family["english"]);
  52.  
  53.  script_dependencies("ssh_get_info.nasl");
  54.  script_require_keys("Host/Mandrake/rpm-list");
  55.  exit(0);
  56. }
  57.  
  58. include("rpm.inc");
  59. if ( rpm_check( reference:"ftp-client-krb5-1.3-6.2.100mdk", release:"MDK10.0", yank:"mdk") )
  60. {
  61.  security_hole(0);
  62.  exit(0);
  63. }
  64. if ( rpm_check( reference:"ftp-server-krb5-1.3-6.2.100mdk", release:"MDK10.0", yank:"mdk") )
  65. {
  66.  security_hole(0);
  67.  exit(0);
  68. }
  69. if ( rpm_check( reference:"krb5-server-1.3-6.2.100mdk", release:"MDK10.0", yank:"mdk") )
  70. {
  71.  security_hole(0);
  72.  exit(0);
  73. }
  74. if ( rpm_check( reference:"krb5-workstation-1.3-6.2.100mdk", release:"MDK10.0", yank:"mdk") )
  75. {
  76.  security_hole(0);
  77.  exit(0);
  78. }
  79. if ( rpm_check( reference:"libkrb51-1.3-6.2.100mdk", release:"MDK10.0", yank:"mdk") )
  80. {
  81.  security_hole(0);
  82.  exit(0);
  83. }
  84. if ( rpm_check( reference:"libkrb51-devel-1.3-6.2.100mdk", release:"MDK10.0", yank:"mdk") )
  85. {
  86.  security_hole(0);
  87.  exit(0);
  88. }
  89. if ( rpm_check( reference:"telnet-client-krb5-1.3-6.2.100mdk", release:"MDK10.0", yank:"mdk") )
  90. {
  91.  security_hole(0);
  92.  exit(0);
  93. }
  94. if ( rpm_check( reference:"telnet-server-krb5-1.3-6.2.100mdk", release:"MDK10.0", yank:"mdk") )
  95. {
  96.  security_hole(0);
  97.  exit(0);
  98. }
  99. if ( rpm_check( reference:"ftp-client-krb5-1.2.7-1.3.91mdk", release:"MDK9.1", yank:"mdk") )
  100. {
  101.  security_hole(0);
  102.  exit(0);
  103. }
  104. if ( rpm_check( reference:"ftp-server-krb5-1.2.7-1.3.91mdk", release:"MDK9.1", yank:"mdk") )
  105. {
  106.  security_hole(0);
  107.  exit(0);
  108. }
  109. if ( rpm_check( reference:"krb5-devel-1.2.7-1.3.91mdk", release:"MDK9.1", yank:"mdk") )
  110. {
  111.  security_hole(0);
  112.  exit(0);
  113. }
  114. if ( rpm_check( reference:"krb5-libs-1.2.7-1.3.91mdk", release:"MDK9.1", yank:"mdk") )
  115. {
  116.  security_hole(0);
  117.  exit(0);
  118. }
  119. if ( rpm_check( reference:"krb5-server-1.2.7-1.3.91mdk", release:"MDK9.1", yank:"mdk") )
  120. {
  121.  security_hole(0);
  122.  exit(0);
  123. }
  124. if ( rpm_check( reference:"krb5-workstation-1.2.7-1.3.91mdk", release:"MDK9.1", yank:"mdk") )
  125. {
  126.  security_hole(0);
  127.  exit(0);
  128. }
  129. if ( rpm_check( reference:"telnet-client-krb5-1.2.7-1.3.91mdk", release:"MDK9.1", yank:"mdk") )
  130. {
  131.  security_hole(0);
  132.  exit(0);
  133. }
  134. if ( rpm_check( reference:"telnet-server-krb5-1.2.7-1.3.91mdk", release:"MDK9.1", yank:"mdk") )
  135. {
  136.  security_hole(0);
  137.  exit(0);
  138. }
  139. if ( rpm_check( reference:"ftp-client-krb5-1.3-3.2.92mdk", release:"MDK9.2", yank:"mdk") )
  140. {
  141.  security_hole(0);
  142.  exit(0);
  143. }
  144. if ( rpm_check( reference:"ftp-server-krb5-1.3-3.2.92mdk", release:"MDK9.2", yank:"mdk") )
  145. {
  146.  security_hole(0);
  147.  exit(0);
  148. }
  149. if ( rpm_check( reference:"krb5-server-1.3-3.2.92mdk", release:"MDK9.2", yank:"mdk") )
  150. {
  151.  security_hole(0);
  152.  exit(0);
  153. }
  154. if ( rpm_check( reference:"krb5-workstation-1.3-3.2.92mdk", release:"MDK9.2", yank:"mdk") )
  155. {
  156.  security_hole(0);
  157.  exit(0);
  158. }
  159. if ( rpm_check( reference:"libkrb51-1.3-3.2.92mdk", release:"MDK9.2", yank:"mdk") )
  160. {
  161.  security_hole(0);
  162.  exit(0);
  163. }
  164. if ( rpm_check( reference:"libkrb51-devel-1.3-3.2.92mdk", release:"MDK9.2", yank:"mdk") )
  165. {
  166.  security_hole(0);
  167.  exit(0);
  168. }
  169. if ( rpm_check( reference:"telnet-client-krb5-1.3-3.2.92mdk", release:"MDK9.2", yank:"mdk") )
  170. {
  171.  security_hole(0);
  172.  exit(0);
  173. }
  174. if ( rpm_check( reference:"telnet-server-krb5-1.3-3.2.92mdk", release:"MDK9.2", yank:"mdk") )
  175. {
  176.  security_hole(0);
  177.  exit(0);
  178. }
  179. if (rpm_exists(rpm:"krb5-", release:"MDK10.0")
  180.  || rpm_exists(rpm:"krb5-", release:"MDK9.1")
  181.  || rpm_exists(rpm:"krb5-", release:"MDK9.2") )
  182. {
  183.  set_kb_item(name:"CAN-2004-0523", value:TRUE);
  184. }
  185.