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nessusThis script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.DEBIAN_DSA-3909.NASL
HistoryJul 17, 2017 - 12:00 a.m.

Debian DSA-3909-1 : samba - security update (Orpheus' Lyre)

2017-07-1700:00:00
This script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
13

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

0.047 Low

EPSS

Percentile

92.7%

Jeffrey Altman, Viktor Duchovni and Nico Williams identified a mutual authentication bypass vulnerability in samba, the SMB/CIFS file, print, and login server. Also known as Orpheus’ Lyre, this vulnerability is located in Samba Kerberos Key Distribution Center (KDC-REP) component and could be used by an attacker on the network path to impersonate a server.

More details can be found on the vulnerability website ( https://orpheus-lyre.info/) and on the Samba project website ( https://www.samba.org/samba/security/CVE-2017-11103.html)

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-3909. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(101554);
  script_version("3.7");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/04");

  script_cve_id("CVE-2017-11103");
  script_xref(name:"DSA", value:"3909");

  script_name(english:"Debian DSA-3909-1 : samba - security update (Orpheus' Lyre)");
  script_summary(english:"Checks dpkg output for the updated package");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Debian host is missing a security-related update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"Jeffrey Altman, Viktor Duchovni and Nico Williams identified a mutual
authentication bypass vulnerability in samba, the SMB/CIFS file,
print, and login server. Also known as Orpheus' Lyre, this
vulnerability is located in Samba Kerberos Key Distribution Center
(KDC-REP) component and could be used by an attacker on the network
path to impersonate a server.

More details can be found on the vulnerability website (
https://orpheus-lyre.info/) and on the Samba project website (
https://www.samba.org/samba/security/CVE-2017-11103.html)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=868209"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://orpheus-lyre.info/"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.samba.org/samba/security/CVE-2017-11103.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/samba"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/stretch/samba"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2017/dsa-3909"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"Upgrade the samba packages.

For the oldstable distribution (jessie), this problem has been fixed
in version 2:4.2.14+dfsg-0+deb8u7.

For the stable distribution (stretch), this problem has been fixed in
version 2:4.5.8+dfsg-2+deb9u1."
  );
  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:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/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:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:samba");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");

  script_set_attribute(attribute:"patch_publication_date", value:"2017/07/14");
  script_set_attribute(attribute:"in_the_news", value:"true");
  script_set_attribute(attribute:"plugin_publication_date", value:"2017/07/17");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2017-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  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:"8.0", prefix:"libnss-winbind", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"libpam-smbpass", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"libpam-winbind", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"libparse-pidl-perl", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"libsmbclient", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"libsmbclient-dev", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"libsmbsharemodes-dev", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"libsmbsharemodes0", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"libwbclient-dev", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"libwbclient0", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"python-samba", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"registry-tools", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"samba", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"samba-common", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"samba-common-bin", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"samba-dbg", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"samba-dev", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"samba-doc", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"samba-dsdb-modules", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"samba-libs", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"samba-testsuite", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"samba-vfs-modules", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"smbclient", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"8.0", prefix:"winbind", reference:"2:4.2.14+dfsg-0+deb8u7")) flag++;
if (deb_check(release:"9.0", prefix:"ctdb", reference:"2:4.5.8+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libnss-winbind", reference:"2:4.5.8+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libpam-winbind", reference:"2:4.5.8+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libparse-pidl-perl", reference:"2:4.5.8+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libsmbclient", reference:"2:4.5.8+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libsmbclient-dev", reference:"2:4.5.8+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libwbclient-dev", reference:"2:4.5.8+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libwbclient0", reference:"2:4.5.8+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"python-samba", reference:"2:4.5.8+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"registry-tools", reference:"2:4.5.8+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"samba", reference:"2:4.5.8+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"samba-common", reference:"2:4.5.8+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"samba-common-bin", reference:"2:4.5.8+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"samba-dev", reference:"2:4.5.8+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"samba-dsdb-modules", reference:"2:4.5.8+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"samba-libs", reference:"2:4.5.8+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"samba-testsuite", reference:"2:4.5.8+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"samba-vfs-modules", reference:"2:4.5.8+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"smbclient", reference:"2:4.5.8+dfsg-2+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"winbind", reference:"2:4.5.8+dfsg-2+deb9u1")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
VendorProductVersionCPE
debiandebian_linuxsambap-cpe:/a:debian:debian_linux:samba
debiandebian_linux8.0cpe:/o:debian:debian_linux:8.0
debiandebian_linux9.0cpe:/o:debian:debian_linux:9.0

6.8 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

8.1 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

0.047 Low

EPSS

Percentile

92.7%