Ubuntu 6.06 LTS / 7.10 / 8.04 LTS / 8.10 : curl vulnerability (USN-726-1)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-726-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

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

if (description)
{
  script_id(37148);
  script_version("1.16");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/19");

  script_cve_id("CVE-2009-0037");
  script_bugtraq_id(33962);
  script_xref(name:"USN", value:"726-1");

  script_name(english:"Ubuntu 6.06 LTS / 7.10 / 8.04 LTS / 8.10 : curl vulnerability (USN-726-1)");
  script_summary(english:"Checks dpkg output for updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Ubuntu host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"It was discovered that curl did not enforce any restrictions when
following URL redirects. If a user or automated system were tricked
into opening a URL to an untrusted server, an attacker could use
redirects to gain access to arbitrary files. This update changes curl
behavior to prevent following 'file' URLs after a redirect.

Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu 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://usn.ubuntu.com/726-1/"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P");
  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_cwe_id(352);

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:curl");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl3-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl3-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl3-gnutls");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl3-gnutls-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl3-openssl-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl4-gnutls-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:libcurl4-openssl-dev");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:6.06:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:7.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:8.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:8.10");

  script_set_attribute(attribute:"patch_publication_date", value:"2009/03/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2009/04/23");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2009-2019 Canonical, Inc. / NASL script (C) 2009-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Ubuntu Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/cpu", "Host/Ubuntu", "Host/Ubuntu/release", "Host/Debian/dpkg-l");

  exit(0);
}


include("audit.inc");
include("ubuntu.inc");
include("misc_func.inc");

if ( ! get_kb_item("Host/local_checks_enabled") ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Ubuntu/release");
if ( isnull(release) ) audit(AUDIT_OS_NOT, "Ubuntu");
release = chomp(release);
if (! ereg(pattern:"^(6\.06|7\.10|8\.04|8\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 6.06 / 7.10 / 8.04 / 8.10", "Ubuntu " + release);
if ( ! get_kb_item("Host/Debian/dpkg-l") ) 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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Ubuntu", cpu);

flag = 0;

if (ubuntu_check(osver:"6.06", pkgname:"curl", pkgver:"7.15.1-1ubuntu3.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libcurl3", pkgver:"7.15.1-1ubuntu3.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libcurl3-dbg", pkgver:"7.15.1-1ubuntu3.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libcurl3-dev", pkgver:"7.15.1-1ubuntu3.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libcurl3-gnutls", pkgver:"7.15.1-1ubuntu3.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libcurl3-gnutls-dev", pkgver:"7.15.1-1ubuntu3.1")) flag++;
if (ubuntu_check(osver:"6.06", pkgname:"libcurl3-openssl-dev", pkgver:"7.15.1-1ubuntu3.1")) flag++;
if (ubuntu_check(osver:"7.10", pkgname:"curl", pkgver:"7.16.4-2ubuntu1.1")) flag++;
if (ubuntu_check(osver:"7.10", pkgname:"libcurl3", pkgver:"7.16.4-2ubuntu1.1")) flag++;
if (ubuntu_check(osver:"7.10", pkgname:"libcurl3-dbg", pkgver:"7.16.4-2ubuntu1.1")) flag++;
if (ubuntu_check(osver:"7.10", pkgname:"libcurl3-gnutls", pkgver:"7.16.4-2ubuntu1.1")) flag++;
if (ubuntu_check(osver:"7.10", pkgname:"libcurl4-gnutls-dev", pkgver:"7.16.4-2ubuntu1.1")) flag++;
if (ubuntu_check(osver:"7.10", pkgname:"libcurl4-openssl-dev", pkgver:"7.16.4-2ubuntu1.1")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"curl", pkgver:"7.18.0-1ubuntu2.1")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"libcurl3", pkgver:"7.18.0-1ubuntu2.1")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"libcurl3-dbg", pkgver:"7.18.0-1ubuntu2.1")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"libcurl3-gnutls", pkgver:"7.18.0-1ubuntu2.1")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"libcurl4-gnutls-dev", pkgver:"7.18.0-1ubuntu2.1")) flag++;
if (ubuntu_check(osver:"8.04", pkgname:"libcurl4-openssl-dev", pkgver:"7.18.0-1ubuntu2.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"curl", pkgver:"7.18.2-1ubuntu4.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libcurl3", pkgver:"7.18.2-1ubuntu4.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libcurl3-dbg", pkgver:"7.18.2-1ubuntu4.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libcurl3-gnutls", pkgver:"7.18.2-1ubuntu4.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libcurl4-gnutls-dev", pkgver:"7.18.2-1ubuntu4.1")) flag++;
if (ubuntu_check(osver:"8.10", pkgname:"libcurl4-openssl-dev", pkgver:"7.18.2-1ubuntu4.1")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : ubuntu_report_get()
  );
  exit(0);
}
else
{
  tested = ubuntu_pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "curl / libcurl3 / libcurl3-dbg / libcurl3-dev / libcurl3-gnutls / etc");
}