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nessusThis script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.SL_20200407_CUPS_ON_SL7_X.NASL
HistoryApr 21, 2020 - 12:00 a.m.

Scientific Linux Security Update : cups on SL7.x x86_64 (20200407)

2020-04-2100:00:00
This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
10

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

6.9 Medium

AI Score

Confidence

High

4.9 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:L/Au:N/C:C/I:N/A:N

0.002 Low

EPSS

Percentile

64.3%

  • cups: Local privilege escalation to root due to insecure environment variable handling * cups: Manipulation of cupsd.conf by a local attacker resulting in limited reads of arbitrary files as root * cups:
    Predictable session cookie breaks CSRF protection
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#

include('compat.inc');

if (description)
{
  script_id(135803);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/15");

  script_cve_id("CVE-2018-4180", "CVE-2018-4181", "CVE-2018-4700");

  script_name(english:"Scientific Linux Security Update : cups on SL7.x x86_64 (20200407)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Scientific Linux host is missing one or more security
updates.");
  script_set_attribute(attribute:"description", value:
"* cups: Local privilege escalation to root due to insecure environment
variable handling * cups: Manipulation of cupsd.conf by a local
attacker resulting in limited reads of arbitrary files as root * cups:
Predictable session cookie breaks CSRF protection");
  # https://listserv.fnal.gov/scripts/wa.exe?A2=ind2004&L=SCIENTIFIC-LINUX-ERRATA&P=3694
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?964dcd24");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:N/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2018-4181");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2018-4180");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/01/11");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/04/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/21");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:cups");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:cups-client");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:cups-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:cups-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:cups-filesystem");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:cups-ipptool");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:cups-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:cups-lpd");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Scientific Linux Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

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

  exit(0);
}


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

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Scientific Linux " >!< release) audit(AUDIT_HOST_NOT, "running Scientific Linux");
os_ver = pregmatch(pattern: "Scientific Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Scientific Linux");
os_ver = os_ver[1];
if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 7.x", "Scientific Linux " + os_ver);
if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

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


flag = 0;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"cups-1.6.3-43.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"cups-client-1.6.3-43.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"cups-debuginfo-1.6.3-43.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"cups-devel-1.6.3-43.el7")) flag++;
if (rpm_check(release:"SL7", reference:"cups-filesystem-1.6.3-43.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"cups-filesystem-1.6.3-43.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"cups-ipptool-1.6.3-43.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"cups-libs-1.6.3-43.el7")) flag++;
if (rpm_check(release:"SL7", cpu:"x86_64", reference:"cups-lpd-1.6.3-43.el7")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "cups / cups-client / cups-debuginfo / cups-devel / cups-filesystem / etc");
}
VendorProductVersionCPE
fermilabscientific_linuxcupsp-cpe:/a:fermilab:scientific_linux:cups
fermilabscientific_linuxcups-clientp-cpe:/a:fermilab:scientific_linux:cups-client
fermilabscientific_linuxcups-debuginfop-cpe:/a:fermilab:scientific_linux:cups-debuginfo
fermilabscientific_linuxcups-develp-cpe:/a:fermilab:scientific_linux:cups-devel
fermilabscientific_linuxcups-filesystemp-cpe:/a:fermilab:scientific_linux:cups-filesystem
fermilabscientific_linuxcups-ipptoolp-cpe:/a:fermilab:scientific_linux:cups-ipptool
fermilabscientific_linuxcups-libsp-cpe:/a:fermilab:scientific_linux:cups-libs
fermilabscientific_linuxcups-lpdp-cpe:/a:fermilab:scientific_linux:cups-lpd
fermilabscientific_linuxx-cpe:/o:fermilab:scientific_linux

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

6.9 Medium

AI Score

Confidence

High

4.9 Medium

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

NONE

Availability Impact

NONE

AV:L/AC:L/Au:N/C:C/I:N/A:N

0.002 Low

EPSS

Percentile

64.3%