Debian DSA-4686-1 : apache-log4j1.2 - security update

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Debian Security Advisory DSA-4686. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(136675);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/12");

  script_cve_id("CVE-2019-17571");
  script_xref(name:"DSA", value:"4686");

  script_name(english:"Debian DSA-4686-1 : apache-log4j1.2 - security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security-related update.");
  script_set_attribute(attribute:"description", 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_set_attribute(attribute:"see_also", value:"https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=947124");
  # https://security-tracker.debian.org/tracker/source-package/apache-log4j1.2
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0db5f187");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/stretch/apache-log4j1.2");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/buster/apache-log4j1.2");
  script_set_attribute(attribute:"see_also", value:"https://www.debian.org/security/2020/dsa-4686");
  script_set_attribute(attribute:"solution", value:
"Upgrade the apache-log4j1.2 packages.

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.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/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:L/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:"cvss_score_source", value:"CVE-2019-17571");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2019/12/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/05/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/18");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:apache-log4j1.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:10.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Debian Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2020-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  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:"10.0", prefix:"liblog4j1.2-java", reference:"1.2.17-8+deb10u1")) flag++;
if (deb_check(release:"10.0", prefix:"liblog4j1.2-java-doc", reference:"1.2.17-8+deb10u1")) flag++;
if (deb_check(release:"9.0", prefix:"liblog4j1.2-java", reference:"1.2.17-7+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"liblog4j1.2-java-doc", reference:"1.2.17-7+deb9u1")) 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");