Debian DLA-156-1 : samba security update

2015-03-26T00:00:00
ID DEBIAN_DLA-156.NASL
Type nessus
Reporter Tenable
Modified 2018-07-06T00:00:00

Description

Richard van Eeden of Microsoft Vulnerability Research discovered that Samba, a SMB/CIFS file, print, and login server for Unix, contains a flaw in the netlogon server code which allows remote code execution with root privileges from an unauthenticated connection.

For the oldstable distribution (squeeze), this problem has been fixed in version 2:3.5.6~dfsg-3squeeze12.

For the stable distribution (wheezy), this problem has been fixed in version 2:3.6.6-6+deb7u5.

We recommend that you upgrade your samba packages.

NOTE: Tenable Network Security has extracted the preceding description block directly from the DLA 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 Debian Security Advisory DLA-156-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(82139);
  script_version("1.12");
  script_cvs_date("Date: 2018/07/06 11:26:06");

  script_cve_id("CVE-2015-0240");
  script_bugtraq_id(72711);

  script_name(english:"Debian DLA-156-1 : samba security update");
  script_summary(english:"Checks dpkg output for the updated packages.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Richard van Eeden of Microsoft Vulnerability Research discovered that
Samba, a SMB/CIFS file, print, and login server for Unix, contains a
flaw in the netlogon server code which allows remote code execution
with root privileges from an unauthenticated connection.

For the oldstable distribution (squeeze), this problem has been fixed
in version 2:3.5.6~dfsg-3squeeze12.

For the stable distribution (wheezy), this problem has been fixed in
version 2:3.6.6-6+deb7u5.

We recommend that you upgrade your samba packages.

NOTE: Tenable Network Security has extracted the preceding description
block directly from the DLA 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://lists.debian.org/debian-lts-announce/2015/02/msg00010.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/squeeze-lts/samba"
  );
  script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/RL:OF/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libpam-smbpass");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsmbclient");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libsmbclient-dev");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:libwbclient0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:samba");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:samba-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:samba-common-bin");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:samba-dbg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:samba-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:samba-doc-pdf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:samba-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:smbclient");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:swat");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:winbind");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:6.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2015/02/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2015/03/26");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2015-2018 Tenable Network Security, Inc.");
  script_family(english:"Debian Local Security Checks");

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

  exit(0);
}


include("audit.inc");
include("debian_package.inc");


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Debian/release")) audit(AUDIT_OS_NOT, "Debian");
if (!get_kb_item("Host/Debian/dpkg-l")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;
if (deb_check(release:"6.0", prefix:"libpam-smbpass", reference:"2:3.5.6~dfsg-3squeeze12")) flag++;
if (deb_check(release:"6.0", prefix:"libsmbclient", reference:"2:3.5.6~dfsg-3squeeze12")) flag++;
if (deb_check(release:"6.0", prefix:"libsmbclient-dev", reference:"2:3.5.6~dfsg-3squeeze12")) flag++;
if (deb_check(release:"6.0", prefix:"libwbclient0", reference:"2:3.5.6~dfsg-3squeeze12")) flag++;
if (deb_check(release:"6.0", prefix:"samba", reference:"2:3.5.6~dfsg-3squeeze12")) flag++;
if (deb_check(release:"6.0", prefix:"samba-common", reference:"2:3.5.6~dfsg-3squeeze12")) flag++;
if (deb_check(release:"6.0", prefix:"samba-common-bin", reference:"2:3.5.6~dfsg-3squeeze12")) flag++;
if (deb_check(release:"6.0", prefix:"samba-dbg", reference:"2:3.5.6~dfsg-3squeeze12")) flag++;
if (deb_check(release:"6.0", prefix:"samba-doc", reference:"2:3.5.6~dfsg-3squeeze12")) flag++;
if (deb_check(release:"6.0", prefix:"samba-doc-pdf", reference:"2:3.5.6~dfsg-3squeeze12")) flag++;
if (deb_check(release:"6.0", prefix:"samba-tools", reference:"2:3.5.6~dfsg-3squeeze12")) flag++;
if (deb_check(release:"6.0", prefix:"smbclient", reference:"2:3.5.6~dfsg-3squeeze12")) flag++;
if (deb_check(release:"6.0", prefix:"swat", reference:"2:3.5.6~dfsg-3squeeze12")) flag++;
if (deb_check(release:"6.0", prefix:"winbind", reference:"2:3.5.6~dfsg-3squeeze12")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get());
  else security_hole(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");