Debian: Security Advisory for apache-log4j1.2 (DSA-4686-1)

# Copyright (C) 2020 Greenbone Networks GmbH
# Some text descriptions might be excerpted from (a) referenced
# source(s), and are Copyright (C) by the respective right holder(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("1.3.6.1.4.1.25623.1.0.704686");
  script_version("2020-05-17T03:00:11+0000");
  script_cve_id("CVE-2019-17571");
  script_tag(name:"cvss_base", value:"7.5");
  script_tag(name:"cvss_base_vector", value:"AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_tag(name:"last_modification", value:"2020-05-17 03:00:11 +0000 (Sun, 17 May 2020)");
  script_tag(name:"creation_date", value:"2020-05-17 03:00:11 +0000 (Sun, 17 May 2020)");
  script_name("Debian: Security Advisory for apache-log4j1.2 (DSA-4686-1)");
  script_category(ACT_GATHER_INFO);
  script_copyright("Copyright (C) 2020 Greenbone Networks GmbH");
  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=DEB(9|10)");

  script_xref(name:"URL", value:"https://www.debian.org/security/2020/dsa-4686.html");
  script_xref(name:"URL", value:"https://security-tracker.debian.org/tracker/DSA-4686-1");

  script_tag(name:"summary", value:"The remote host is missing an update for the 'apache-log4j1.2'
  package(s) announced via the DSA-4686-1 advisory.");

  script_tag(name:"vuldetect", value:"Checks if a vulnerable package version is present on the target host.");

  script_tag(name:"insight", value:"It was discovered that the SocketServer class included in
apache-log4j1.2, a logging library for java, is vulnerable to
deserialization of untrusted data. An attacker can take advantage of
this flaw to execute arbitrary code in the context of the logger
application by sending a specially crafted log event.");

  script_tag(name:"affected", value:"'apache-log4j1.2' package(s) on Debian Linux.");

  script_tag(name:"solution", value:"For the oldstable distribution (stretch), this problem has been fixed
in version 1.2.17-7+deb9u1.

For the stable distribution (buster), this problem has been fixed in
version 1.2.17-8+deb10u1.

We recommend that you upgrade your apache-log4j1.2 packages.");

  script_tag(name:"solution_type", value:"VendorFix");
  script_tag(name:"qod_type", value:"package");

  exit(0);
}

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

res = "";
report = "";
if(!isnull(res = isdpkgvuln(pkg:"liblog4j1.2-java", ver:"1.2.17-7+deb9u1", rls:"DEB9"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"liblog4j1.2-java-doc", ver:"1.2.17-7+deb9u1", rls:"DEB9"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"liblog4j1.2-java", ver:"1.2.17-8+deb10u1", rls:"DEB10"))) {
  report += res;
}
if(!isnull(res = isdpkgvuln(pkg:"liblog4j1.2-java-doc", ver:"1.2.17-8+deb10u1", rls:"DEB10"))) {
  report += res;
}

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

exit(0);