Mandriva Linux Security Advisory : krb5 (MDVSA-2010:245)

#%NASL_MIN_LEVEL 70300

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Mandriva Linux Security Advisory MDVSA-2010:245. 
# The text itself is copyright (C) Mandriva S.A.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(50848);
  script_version("1.17");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2010-1323");
  script_bugtraq_id(45118);
  script_xref(name:"MDVSA", value:"2010:245");

  script_name(english:"Mandriva Linux Security Advisory : krb5 (MDVSA-2010:245)");
  script_summary(english:"Checks rpm output for the updated packages");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Mandriva Linux host is missing one or more security
updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"A vulnerability was discovered and corrected in krb5 :

An unauthenticated remote attacker could alter a SAM-2 challenge,
affecting the prompt text seen by the user or the kind of response
sent to the KDC. Under some circumstances, this can negate the
incremental security benefit of using a single-use authentication
mechanism token. An unauthenticated remote attacker has a 1/256 chance
of forging KRB-SAFE messages in an application protocol if the
targeted pre-existing session uses an RC4 session key. Few application
protocols use KRB-SAFE messages (CVE-2010-1323).

Packages for 2009.0 are provided as of the Extended Maintenance
Program. Please visit this link to learn more:
http://store.mandriva.com/product_info.php?cPath=149&products_id=4
90

The updated packages have been patched to correct this issue."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2010-007.txt"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:H/Au:N/C:N/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:ftp-client-krb5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:ftp-server-krb5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5-server");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:krb5-workstation");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64krb53");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:lib64krb53-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libkrb53");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:libkrb53-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:telnet-client-krb5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:telnet-server-krb5");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2009.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:mandriva:linux:2010.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2010/11/30");
  script_set_attribute(attribute:"plugin_publication_date", value:"2010/12/01");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2010-2021 Tenable Network Security, Inc.");
  script_family(english:"Mandriva Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/rpm-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("rpm.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux");
if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu);


flag = 0;
if (rpm_check(release:"MDK2009.0", reference:"ftp-client-krb5-1.6.3-6.6mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"ftp-server-krb5-1.6.3-6.6mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"krb5-1.6.3-6.6mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"krb5-server-1.6.3-6.6mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"krb5-workstation-1.6.3-6.6mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", cpu:"x86_64", reference:"lib64krb53-1.6.3-6.6mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", cpu:"x86_64", reference:"lib64krb53-devel-1.6.3-6.6mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", cpu:"i386", reference:"libkrb53-1.6.3-6.6mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", cpu:"i386", reference:"libkrb53-devel-1.6.3-6.6mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"telnet-client-krb5-1.6.3-6.6mdv2009.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2009.0", reference:"telnet-server-krb5-1.6.3-6.6mdv2009.0", yank:"mdv")) flag++;

if (rpm_check(release:"MDK2010.0", reference:"ftp-client-krb5-1.6.3-10.4mdv2010.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.0", reference:"ftp-server-krb5-1.6.3-10.4mdv2010.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.0", reference:"krb5-1.6.3-10.4mdv2010.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.0", reference:"krb5-server-1.6.3-10.4mdv2010.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.0", reference:"krb5-workstation-1.6.3-10.4mdv2010.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.0", cpu:"x86_64", reference:"lib64krb53-1.6.3-10.4mdv2010.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.0", cpu:"x86_64", reference:"lib64krb53-devel-1.6.3-10.4mdv2010.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.0", cpu:"i386", reference:"libkrb53-1.6.3-10.4mdv2010.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.0", cpu:"i386", reference:"libkrb53-devel-1.6.3-10.4mdv2010.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.0", reference:"telnet-client-krb5-1.6.3-10.4mdv2010.0", yank:"mdv")) flag++;
if (rpm_check(release:"MDK2010.0", reference:"telnet-server-krb5-1.6.3-10.4mdv2010.0", yank:"mdv")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_note(port:0, extra:rpm_report_get());
  else security_note(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");