Debian LTS: Security Advisory for krb5 (DLA-1058-1)

2018-02-07T00:00:00
ID OPENVAS:1361412562310891058
Type openvas
Reporter Copyright (C) 2018 Greenbone Networks GmbH http://greenbone.net
Modified 2020-01-29T00:00:00

Description

In MIT Kerberos 5 (aka krb5) 1.7 and later, an authenticated attacker can cause a KDC assertion failure by sending invalid S4U2Self or S4U2Proxy requests.

                                        
                                            # Copyright (C) 2018 Greenbone Networks GmbH
# Text descriptions are largely excerpted from the referenced
# advisory, and are Copyright (C) of the respective author(s)
#
# SPDX-License-Identifier: GPL-2.0-or-later
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; either version 2
# of the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

if(description)
{
  script_oid("1.3.6.1.4.1.25623.1.0.891058");
  script_version("2020-01-29T08:22:52+0000");
  script_cve_id("CVE-2017-11368");
  script_name("Debian LTS: Security Advisory for krb5 (DLA-1058-1)");
  script_tag(name:"last_modification", value:"2020-01-29 08:22:52 +0000 (Wed, 29 Jan 2020)");
  script_tag(name:"creation_date", value:"2018-02-07 00:00:00 +0100 (Wed, 07 Feb 2018)");
  script_tag(name:"cvss_base", value:"4.0");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:S/C:N/I:N/A:P");
  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  script_xref(name:"URL", value:"https://lists.debian.org/debian-lts-announce/2017/08/msg00010.html");

  script_category(ACT_GATHER_INFO);

  script_copyright("Copyright (C) 2018 Greenbone Networks GmbH http://greenbone.net");
  script_family("Debian Local Security Checks");
  script_dependencies("gather-package-list.nasl");
  script_mandatory_keys("ssh/login/debian_linux", "ssh/login/packages", re:"ssh/login/release=DEB7");

  script_tag(name:"affected", value:"krb5 on Debian Linux");

  script_tag(name:"solution", value:"For Debian 7 'Wheezy', these problems have been fixed in version
1.10.1+dfsg-5+deb7u8.

We recommend that you upgrade your krb5 packages.");

  script_tag(name:"summary", value:"In MIT Kerberos 5 (aka krb5) 1.7 and later, an authenticated attacker
can cause a KDC assertion failure by sending invalid S4U2Self or
S4U2Proxy requests.");

  script_tag(name:"vuldetect", value:"This check tests the installed software version using the apt package manager.");

  exit(0);
}

include("revisions-lib.inc");
include("pkg-lib-deb.inc");

res = "";
report = "";
if(!isnull(res = isdpkgvuln(pkg:"krb5-admin-server", ver:"1.10.1+dfsg-5+deb7u8", rls:"DEB7"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"krb5-doc", ver:"1.10.1+dfsg-5+deb7u8", rls:"DEB7"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"krb5-gss-samples", ver:"1.10.1+dfsg-5+deb7u8", rls:"DEB7"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"krb5-kdc", ver:"1.10.1+dfsg-5+deb7u8", rls:"DEB7"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"krb5-kdc-ldap", ver:"1.10.1+dfsg-5+deb7u8", rls:"DEB7"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"krb5-locales", ver:"1.10.1+dfsg-5+deb7u8", rls:"DEB7"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"krb5-multidev", ver:"1.10.1+dfsg-5+deb7u8", rls:"DEB7"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"krb5-pkinit", ver:"1.10.1+dfsg-5+deb7u8", rls:"DEB7"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"krb5-user", ver:"1.10.1+dfsg-5+deb7u8", rls:"DEB7"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libgssapi-krb5-2", ver:"1.10.1+dfsg-5+deb7u8", rls:"DEB7"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libgssrpc4", ver:"1.10.1+dfsg-5+deb7u8", rls:"DEB7"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libk5crypto3", ver:"1.10.1+dfsg-5+deb7u8", rls:"DEB7"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libkadm5clnt-mit8", ver:"1.10.1+dfsg-5+deb7u8", rls:"DEB7"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libkadm5srv-mit8", ver:"1.10.1+dfsg-5+deb7u8", rls:"DEB7"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libkdb5-6", ver:"1.10.1+dfsg-5+deb7u8", rls:"DEB7"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libkrb5-3", ver:"1.10.1+dfsg-5+deb7u8", rls:"DEB7"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libkrb5-dbg", ver:"1.10.1+dfsg-5+deb7u8", rls:"DEB7"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libkrb5-dev", ver:"1.10.1+dfsg-5+deb7u8", rls:"DEB7"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"libkrb5support0", ver:"1.10.1+dfsg-5+deb7u8", rls:"DEB7"))) {
  report += res;
}

if(report != "") {
  security_message(data:report);
} else if(__pkg_match) {
  exit(99);
}