SUSE SLED12 / SLES12 Security Update : polkit (SUSE-SU-2015:1838-1)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from SUSE update advisory SUSE-SU-2015:1838-1.
# The text itself is copyright (C) SUSE.
#

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

if (description)
{
  script_id(86649);
  script_version("2.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2015-3218", "CVE-2015-3255", "CVE-2015-3256", "CVE-2015-4625");
  script_bugtraq_id(75267);

  script_name(english:"SUSE SLED12 / SLES12 Security Update : polkit (SUSE-SU-2015:1838-1)");
  script_summary(english:"Checks rpm output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote SUSE host is missing one or more security updates."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"polkit was updated to the 0.113 release, fixing security issues and
bugs.

Security issues fixed :

  - Fixes CVE-2015-4625, a local privilege escalation due to
    predictable authentication session cookie values. Thanks
    to Tavis Ormandy, Google Project Zero for reporting this
    issue. For the future, authentication agents are
    encouraged to use PolkitAgentSession instead of using
    the D-Bus agent response API directly. (bsc#935119)

  - Fixes CVE-2015-3256, various memory corruption
    vulnerabilities in use of the JavaScript interpreter,
    possibly leading to local privilege escalation.
    (bsc#943816)

  - Fixes CVE-2015-3255, a memory corruption vulnerability
    in handling duplicate action IDs, possibly leading to
    local privilege escalation. Thanks to Laurent Bigonville
    for reporting this issue. (bsc#939246)

  - Fixes CVE-2015-3218, which allowed any local user to
    crash polkitd. Thanks to Tavis Ormandy, Google Project
    Zero, for reporting this issue. (bsc#933922)

Other issues fixed :

  - On systemd-213 and later, the 'active' state is shared
    across all sessions of an user, instead of being tracked
    separately.

  - pkexec, when not given a program to execute, runs the
    users shell by default.

  - Fixed shutdown problems on powerpc64le (bsc#950114)

  - polkit had a memory leak (bsc#912889)

Note that Tenable Network Security has extracted the preceding
description block directly from the SUSE security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=912889"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=933922"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=935119"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=939246"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=943816"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugzilla.suse.com/show_bug.cgi?id=950114"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-3218/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-3255/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-3256/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.suse.com/security/cve/CVE-2015-4625/"
  );
  # https://www.suse.com/support/update/announcement/2015/suse-su-20151838-1.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?e9a03389"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"To install this SUSE Security Update use YaST online_update.
Alternatively you can run the command listed for your product :

SUSE Linux Enterprise Workstation Extension 12 :

zypper in -t patch SUSE-SLE-WE-12-2015-759=1

SUSE Linux Enterprise Software Development Kit 12 :

zypper in -t patch SUSE-SLE-SDK-12-2015-759=1

SUSE Linux Enterprise Server 12 :

zypper in -t patch SUSE-SLE-SERVER-12-2015-759=1

SUSE Linux Enterprise Desktop 12 :

zypper in -t patch SUSE-SLE-DESKTOP-12-2015-759=1

To bring your system up-to-date, use 'zypper patch'."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libpolkit0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:libpolkit0-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:polkit");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:polkit-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:polkit-debugsource");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:suse_linux:typelib-1_0-Polkit");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:suse_linux:12");

  script_set_attribute(attribute:"vuln_publication_date", value:"2015/10/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2015/10/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/10/29");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"SuSE Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/SuSE/release", "Host/SuSE/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);
release = get_kb_item("Host/SuSE/release");
if (isnull(release) || release !~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "SUSE");
os_ver = pregmatch(pattern: "^(SLE(S|D)\d+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "SUSE");
os_ver = os_ver[1];
if (! preg(pattern:"^(SLED12|SLES12)$", string:os_ver)) audit(AUDIT_OS_NOT, "SUSE SLED12 / SLES12", "SUSE " + os_ver);

if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && "x86_64" >!< cpu && "s390x" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "SUSE " + os_ver, cpu);

sp = get_kb_item("Host/SuSE/patchlevel");
if (isnull(sp)) sp = "0";
if (os_ver == "SLES12" && (! preg(pattern:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLES12 SP0", os_ver + " SP" + sp);
if (os_ver == "SLED12" && (! preg(pattern:"^(0)$", string:sp))) audit(AUDIT_OS_NOT, "SLED12 SP0", os_ver + " SP" + sp);


flag = 0;
if (rpm_check(release:"SLES12", sp:"0", reference:"libpolkit0-0.113-4.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"libpolkit0-debuginfo-0.113-4.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"polkit-0.113-4.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"polkit-debuginfo-0.113-4.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"polkit-debugsource-0.113-4.1")) flag++;
if (rpm_check(release:"SLES12", sp:"0", reference:"typelib-1_0-Polkit-1_0-0.113-4.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"libpolkit0-0.113-4.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"libpolkit0-32bit-0.113-4.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"libpolkit0-debuginfo-0.113-4.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"libpolkit0-debuginfo-32bit-0.113-4.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"polkit-0.113-4.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"polkit-debuginfo-0.113-4.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"polkit-debugsource-0.113-4.1")) flag++;
if (rpm_check(release:"SLED12", sp:"0", cpu:"x86_64", reference:"typelib-1_0-Polkit-1_0-0.113-4.1")) flag++;


if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
  else security_warning(0);
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "polkit");
}