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nessusThis script is Copyright (C) 2020-2023 and is owned by Tenable, Inc. or an Affiliate thereof.DEBIAN_DSA-4673.NASL
HistoryMay 07, 2020 - 12:00 a.m.

Debian DSA-4673-1 : tomcat8 - security update

2020-05-0700:00:00
This script is Copyright (C) 2020-2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
21

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.974 High

EPSS

Percentile

99.9%

Several vulnerabilities were discovered in the Tomcat servlet and JSP engine, which could result in HTTP request smuggling and code execution in the AJP connector (disabled by default in Debian).

#%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-4673. The text 
# itself is copyright (C) Software in the Public Interest, Inc.
#

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

if (description)
{
  script_id(136369);
  script_version("1.8");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/01/10");

  script_cve_id("CVE-2019-17569", "CVE-2020-1935", "CVE-2020-1938");
  script_xref(name:"DSA", value:"4673");
  script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2022/03/17");
  script_xref(name:"CEA-ID", value:"CEA-2020-0021");

  script_name(english:"Debian DSA-4673-1 : tomcat8 - security update");
  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:
"Several vulnerabilities were discovered in the Tomcat servlet and JSP
engine, which could result in HTTP request smuggling and code
execution in the AJP connector (disabled by default in Debian)."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security-tracker.debian.org/tracker/source-package/tomcat8"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/stretch/tomcat8"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.debian.org/security/2020/dsa-4673"
  );
  script_set_attribute(
    attribute:"solution",
    value:
"Upgrade the tomcat8 packages.

For the oldstable distribution (stretch), these problems have been
fixed in version 8.5.54-0+deb9u1."
  );
  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:H/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:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-1938");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:tomcat8");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/02/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/05/03");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/07");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2020-2023 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:"9.0", prefix:"libservlet3.1-java", reference:"8.5.54-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libservlet3.1-java-doc", reference:"8.5.54-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libtomcat8-embed-java", reference:"8.5.54-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"libtomcat8-java", reference:"8.5.54-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"tomcat8", reference:"8.5.54-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"tomcat8-admin", reference:"8.5.54-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"tomcat8-common", reference:"8.5.54-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"tomcat8-docs", reference:"8.5.54-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"tomcat8-examples", reference:"8.5.54-0+deb9u1")) flag++;
if (deb_check(release:"9.0", prefix:"tomcat8-user", reference:"8.5.54-0+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");
VendorProductVersionCPE
debiandebian_linuxtomcat8p-cpe:/a:debian:debian_linux:tomcat8
debiandebian_linux9.0cpe:/o:debian:debian_linux:9.0

7.5 High

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

0.974 High

EPSS

Percentile

99.9%