3.3 Low
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:A/AC:L/Au:N/C:P/I:N/A:N
6.5 Medium
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
0.005 Low
EPSS
Percentile
77.2%
Simo Sorce of Red Hat discovered that the Samba client code always requests a forwardable ticket when using Kerberos authentication. A target server, which must be in the current or trusted domain/realm, is given a valid general purpose Kerberos ‘Ticket Granting Ticket’ (TGT), which can be used to fully impersonate the authenticated user or service.
For Debian 7 ‘Wheezy’, these problems have been fixed in version 2:3.6.6-6+deb7u11.
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.
#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-776-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(96192);
script_version("3.8");
script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/11");
script_cve_id("CVE-2016-2125");
script_name(english:"Debian DLA-776-1 : 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:
"Simo Sorce of Red Hat discovered that the Samba client code always
requests a forwardable ticket when using Kerberos authentication. A
target server, which must be in the current or trusted domain/realm,
is given a valid general purpose Kerberos 'Ticket Granting Ticket'
(TGT), which can be used to fully impersonate the authenticated user
or service.
For Debian 7 'Wheezy', these problems have been fixed in version
2:3.6.6-6+deb7u11.
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/2017/01/msg00004.html"
);
script_set_attribute(
attribute:"see_also",
value:"https://packages.debian.org/source/wheezy/samba"
);
script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
script_set_cvss_base_vector("CVSS2#AV:A/AC:L/Au:N/C:P/I:N/A:N");
script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
script_set_cvss3_base_vector("CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N");
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:libnss-winbind");
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:libpam-winbind");
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:libwbclient-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:7.0");
script_set_attribute(attribute:"vuln_publication_date", value:"2018/10/31");
script_set_attribute(attribute:"patch_publication_date", value:"2017/01/02");
script_set_attribute(attribute:"plugin_publication_date", value:"2017/01/03");
script_set_attribute(attribute:"generated_plugin", value:"current");
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:"7.0", prefix:"libnss-winbind", reference:"2:3.6.6-6+deb7u11")) flag++;
if (deb_check(release:"7.0", prefix:"libpam-smbpass", reference:"2:3.6.6-6+deb7u11")) flag++;
if (deb_check(release:"7.0", prefix:"libpam-winbind", reference:"2:3.6.6-6+deb7u11")) flag++;
if (deb_check(release:"7.0", prefix:"libsmbclient", reference:"2:3.6.6-6+deb7u11")) flag++;
if (deb_check(release:"7.0", prefix:"libsmbclient-dev", reference:"2:3.6.6-6+deb7u11")) flag++;
if (deb_check(release:"7.0", prefix:"libwbclient-dev", reference:"2:3.6.6-6+deb7u11")) flag++;
if (deb_check(release:"7.0", prefix:"libwbclient0", reference:"2:3.6.6-6+deb7u11")) flag++;
if (deb_check(release:"7.0", prefix:"samba", reference:"2:3.6.6-6+deb7u11")) flag++;
if (deb_check(release:"7.0", prefix:"samba-common", reference:"2:3.6.6-6+deb7u11")) flag++;
if (deb_check(release:"7.0", prefix:"samba-common-bin", reference:"2:3.6.6-6+deb7u11")) flag++;
if (deb_check(release:"7.0", prefix:"samba-dbg", reference:"2:3.6.6-6+deb7u11")) flag++;
if (deb_check(release:"7.0", prefix:"samba-doc", reference:"2:3.6.6-6+deb7u11")) flag++;
if (deb_check(release:"7.0", prefix:"samba-doc-pdf", reference:"2:3.6.6-6+deb7u11")) flag++;
if (deb_check(release:"7.0", prefix:"samba-tools", reference:"2:3.6.6-6+deb7u11")) flag++;
if (deb_check(release:"7.0", prefix:"smbclient", reference:"2:3.6.6-6+deb7u11")) flag++;
if (deb_check(release:"7.0", prefix:"swat", reference:"2:3.6.6-6+deb7u11")) flag++;
if (deb_check(release:"7.0", prefix:"winbind", reference:"2:3.6.6-6+deb7u11")) flag++;
if (flag)
{
if (report_verbosity > 0) security_note(port:0, extra:deb_report_get());
else security_note(0);
exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
Vendor | Product | Version | CPE |
---|---|---|---|
debian | debian_linux | libnss-winbind | p-cpe:/a:debian:debian_linux:libnss-winbind |
debian | debian_linux | libpam-smbpass | p-cpe:/a:debian:debian_linux:libpam-smbpass |
debian | debian_linux | libpam-winbind | p-cpe:/a:debian:debian_linux:libpam-winbind |
debian | debian_linux | libsmbclient | p-cpe:/a:debian:debian_linux:libsmbclient |
debian | debian_linux | libsmbclient-dev | p-cpe:/a:debian:debian_linux:libsmbclient-dev |
debian | debian_linux | libwbclient-dev | p-cpe:/a:debian:debian_linux:libwbclient-dev |
debian | debian_linux | libwbclient0 | p-cpe:/a:debian:debian_linux:libwbclient0 |
debian | debian_linux | samba | p-cpe:/a:debian:debian_linux:samba |
debian | debian_linux | samba-common | p-cpe:/a:debian:debian_linux:samba-common |
debian | debian_linux | samba-common-bin | p-cpe:/a:debian:debian_linux:samba-common-bin |
3.3 Low
CVSS2
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
NONE
Availability Impact
NONE
AV:A/AC:L/Au:N/C:P/I:N/A:N
6.5 Medium
CVSS3
Attack Vector
ADJACENT
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
0.005 Low
EPSS
Percentile
77.2%