EulerOS 2.0 SP2 : squid (EulerOS-SA-2019-2445)

2019-12-04T00:00:00
ID EULEROS_SA-2019-2445.NASL
Type nessus
Reporter This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2019-12-04T00:00:00

Description

According to the versions of the squid packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  • Squid before 4.4 has XSS via a crafted X.509 certificate during HTTP(S) error page generation for certificate errors.(CVE-2018-19131)

  • Squid before 4.4, when SNMP is enabled, allows a denial of service (Memory Leak) via an SNMP packet.(CVE-2018-19132)

  • Incorrect HTTP Request header comparison in Squid HTTP Proxy 3.5.0.1 through 3.5.22, and 4.0.1 through 4.0.16 results in Collapsed Forwarding feature mistakenly identifying some private responses as being suitable for delivery to multiple clients.(CVE-2016-10003)

  • An issue was discovered in Squid 3.3.9 through 3.5.28 and 4.x through 4.7. When Squid is configured to use Digest authentication, it parses the header Proxy-Authorization. It searches for certain tokens such as domain, uri, and qop. Squid checks if this token

                                        
                                            #
# (C) Tenable Network Security, Inc.
#

include("compat.inc");

if (description)
{
  script_id(131599);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/05/07");

  script_cve_id(
    "CVE-2016-10003",
    "CVE-2018-19131",
    "CVE-2018-19132",
    "CVE-2019-12525",
    "CVE-2019-13345"
  );

  script_name(english:"EulerOS 2.0 SP2 : squid (EulerOS-SA-2019-2445)");
  script_summary(english:"Checks the rpm output for the updated packages.");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the squid packages installed, the
EulerOS installation on the remote host is affected by the following
vulnerabilities :

  - Squid before 4.4 has XSS via a crafted X.509
    certificate during HTTP(S) error page generation for
    certificate errors.(CVE-2018-19131)

  - Squid before 4.4, when SNMP is enabled, allows a denial
    of service (Memory Leak) via an SNMP
    packet.(CVE-2018-19132)

  - Incorrect HTTP Request header comparison in Squid HTTP
    Proxy 3.5.0.1 through 3.5.22, and 4.0.1 through 4.0.16
    results in Collapsed Forwarding feature mistakenly
    identifying some private responses as being suitable
    for delivery to multiple clients.(CVE-2016-10003)

  - An issue was discovered in Squid 3.3.9 through 3.5.28
    and 4.x through 4.7. When Squid is configured to use
    Digest authentication, it parses the header
    Proxy-Authorization. It searches for certain tokens
    such as domain, uri, and qop. Squid checks if this
    token's value starts with a quote and ends with one. If
    so, it performs a memcpy of its length minus 2. Squid
    never checks whether the value is just a single quote
    (which would satisfy its requirements), leading to a
    memcpy of its length minus 1.(CVE-2019-12525)

  - The cachemgr.cgi web module of Squid through 4.7 has
    XSS via the user_name or auth
    parameter.(CVE-2019-13345)

Note that Tenable Network Security has extracted the preceding
description block directly from the EulerOS security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2019-2445
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a5f83c6a");
  script_set_attribute(attribute:"solution", value:
"Update the affected squid packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/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:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"patch_publication_date", value:"2019/12/04");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/12/04");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:squid");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:squid-migration-script");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
  script_exclude_keys("Host/EulerOS/uvp_version");

  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/EulerOS/release");
if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");

sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(2)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP2");

uvp = get_kb_item("Host/EulerOS/uvp_version");
if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP2", "EulerOS UVP " + uvp);

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

cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i686 / x86_64", cpu);

flag = 0;

pkgs = ["squid-3.5.20-2.2.h5",
        "squid-migration-script-3.5.20-2.2.h5"];

foreach (pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"2", reference:pkg)) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    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, "squid");
}