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Ubuntu Security Notice (C) 2012-2019 Canonical, Inc. / NASL script (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof.UBUNTU_USN-1346-1.NASL
HistoryJan 25, 2012 - 12:00 a.m.

Ubuntu 10.10 / 11.04 / 11.10 : curl vulnerability (USN-1346-1)

2012-01-2500:00:00
Ubuntu Security Notice (C) 2012-2019 Canonical, Inc. / NASL script (C) 2012-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
11

Dan Fandrich discovered that curl incorrectly handled URLs containing embedded or percent-encoded control characters. If a user or automated system were tricked into processing a specially crafted URL, arbitrary data could be injected.

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.

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Ubuntu Security Notice USN-1346-1. The text 
# itself is copyright (C) Canonical, Inc. See 
# <http://www.ubuntu.com/usn/>. Ubuntu(R) is a registered 
# trademark of Canonical, Inc.
#

include("compat.inc");

if (description)
{
  script_id(57689);
  script_version("1.9");
  script_cvs_date("Date: 2019/09/19 12:54:27");

  script_cve_id("CVE-2012-0036");
  script_xref(name:"USN", value:"1346-1");

  script_name(english:"Ubuntu 10.10 / 11.04 / 11.10 : curl vulnerability (USN-1346-1)");
  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:
"Dan Fandrich discovered that curl incorrectly handled URLs containing
embedded or percent-encoded control characters. If a user or automated
system were tricked into processing a specially crafted URL, arbitrary
data could be injected.

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/1346-1/"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Update the affected libcurl3, libcurl3-gnutls and / or libcurl3-nss
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_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:canonical:ubuntu_linux:libcurl3");
  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-nss");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:10.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:11.04");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:11.10");

  script_set_attribute(attribute:"vuln_publication_date", value:"2012/04/13");
  script_set_attribute(attribute:"patch_publication_date", value:"2012/01/24");
  script_set_attribute(attribute:"plugin_publication_date", value:"2012/01/25");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"Ubuntu Security Notice (C) 2012-2019 Canonical, Inc. / NASL script (C) 2012-2019 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 (! preg(pattern:"^(10\.10|11\.04|11\.10)$", string:release)) audit(AUDIT_OS_NOT, "Ubuntu 10.10 / 11.04 / 11.10", "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:"10.10", pkgname:"libcurl3", pkgver:"7.21.0-1ubuntu1.3")) flag++;
if (ubuntu_check(osver:"10.10", pkgname:"libcurl3-gnutls", pkgver:"7.21.0-1ubuntu1.3")) flag++;
if (ubuntu_check(osver:"11.04", pkgname:"libcurl3", pkgver:"7.21.3-1ubuntu1.5")) flag++;
if (ubuntu_check(osver:"11.04", pkgname:"libcurl3-gnutls", pkgver:"7.21.3-1ubuntu1.5")) flag++;
if (ubuntu_check(osver:"11.04", pkgname:"libcurl3-nss", pkgver:"7.21.3-1ubuntu1.5")) flag++;
if (ubuntu_check(osver:"11.10", pkgname:"libcurl3", pkgver:"7.21.6-3ubuntu3.2")) flag++;
if (ubuntu_check(osver:"11.10", pkgname:"libcurl3-gnutls", pkgver:"7.21.6-3ubuntu3.2")) flag++;
if (ubuntu_check(osver:"11.10", pkgname:"libcurl3-nss", pkgver:"7.21.6-3ubuntu3.2")) flag++;

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_HOLE,
    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, "libcurl3 / libcurl3-gnutls / libcurl3-nss");
}
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