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nessusThis script is Copyright (C) 2014-2021 and is owned by Tenable, Inc. or an Affiliate thereof.SL_20140805_YUM_UPDATESD_ON_SL5_X.NASL
HistoryAug 06, 2014 - 12:00 a.m.

Scientific Linux Security Update : yum-updatesd on SL5.x (noarch) (20140805)

2014-08-0600:00:00
This script is Copyright (C) 2014-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
10

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

EPSS

0.006

Percentile

78.5%

It was discovered that yum-updatesd did not properly perform RPM package signature checks. When yum-updatesd was configured to automatically install updates, a remote attacker could use this flaw to install a malicious update on the target system using an unsigned RPM or an RPM signed with an untrusted key. (CVE-2014-0022)

After installing this update, the yum-updatesd service will be restarted automatically.

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text is (C) Scientific Linux.
#

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

if (description)
{
  script_id(77018);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/14");

  script_cve_id("CVE-2014-0022");

  script_name(english:"Scientific Linux Security Update : yum-updatesd on SL5.x (noarch) (20140805)");
  script_summary(english:"Checks rpm output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Scientific Linux host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"It was discovered that yum-updatesd did not properly perform RPM
package signature checks. When yum-updatesd was configured to
automatically install updates, a remote attacker could use this flaw
to install a malicious update on the target system using an unsigned
RPM or an RPM signed with an untrusted key. (CVE-2014-0022)

After installing this update, the yum-updatesd service will be
restarted automatically."
  );
  # https://listserv.fnal.gov/scripts/wa.exe?A2=ind1408&L=scientific-linux-errata&T=0&P=77
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?7931fa42"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Update the affected yum-updatesd package."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fermilab:scientific_linux:yum-updatesd");
  script_set_attribute(attribute:"cpe", value:"x-cpe:/o:fermilab:scientific_linux");

  script_set_attribute(attribute:"vuln_publication_date", value:"2014/01/26");
  script_set_attribute(attribute:"patch_publication_date", value:"2014/08/05");
  script_set_attribute(attribute:"plugin_publication_date", value:"2014/08/06");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2014-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Scientific Linux Local Security Checks");

  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:"^5([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Scientific Linux 5.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:"SL5", reference:"yum-updatesd-0.9-6.sl5")) 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, "yum-updatesd");
}
VendorProductVersionCPE
fermilabscientific_linuxyum-updatesdp-cpe:/a:fermilab:scientific_linux:yum-updatesd
fermilabscientific_linuxx-cpe:/o:fermilab:scientific_linux

CVSS2

5

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

EPSS

0.006

Percentile

78.5%