Debian DLA-2079-1 : otrs2 security update

2020-01-30T00:00:00
ID DEBIAN_DLA-2079.NASL
Type nessus
Reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
Modified 2020-01-30T00:00:00

Description

Several vulnerabilities have been discovered in the otrs2 package that may lead to unauthorized access, remote code execution and spoofing.

CVE-2020-1765

An improper control of parameters allows the spoofing of the from fields of the following screens: AgentTicketCompose, AgentTicketForward, AgentTicketBounce.

CVE-2020-1766

Due to improper handling of uploaded images it is possible in very unlikely and rare conditions to force the agents browser to execute malicious JavaScript from a special crafted SVG file rendered as inline jpg file.

CVE-2020-1767

Unauthorized view of drafts, change the text completely and send it in the name of draft owner. For the customer it will not be visible that the message was sent by another agent.

For Debian 8 'Jessie', these problems have been fixed in version 3.3.18-1+deb8u13.

We recommend that you upgrade your otrs2 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 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2079-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include("compat.inc");

if (description)
{
  script_id(133318);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2020/09/23");

  script_cve_id("CVE-2020-1765", "CVE-2020-1766", "CVE-2020-1767");

  script_name(english:"Debian DLA-2079-1 : otrs2 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:
"Several vulnerabilities have been discovered in the otrs2 package that
may lead to unauthorized access, remote code execution and spoofing.

CVE-2020-1765

An improper control of parameters allows the spoofing of the from
fields of the following screens: AgentTicketCompose,
AgentTicketForward, AgentTicketBounce.

CVE-2020-1766

Due to improper handling of uploaded images it is possible in very
unlikely and rare conditions to force the agents browser to execute
malicious JavaScript from a special crafted SVG file rendered as
inline jpg file.

CVE-2020-1767

Unauthorized view of drafts, change the text completely and send it in
the name of draft owner. For the customer it will not be visible that
the message was sent by another agent.

For Debian 8 'Jessie', these problems have been fixed in version
3.3.18-1+deb8u13.

We recommend that you upgrade your otrs2 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/2020/01/msg00027.html"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://packages.debian.org/source/jessie/otrs2"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Upgrade the affected otrs, and otrs2 packages."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N");
  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:N/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2020-1765");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:otrs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:otrs2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");

  script_set_attribute(attribute:"vuln_publication_date", value:"2020/01/10");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/01/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/01/30");
  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 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:"8.0", prefix:"otrs", reference:"3.3.18-1+deb8u13")) flag++;
if (deb_check(release:"8.0", prefix:"otrs2", reference:"3.3.18-1+deb8u13")) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:deb_report_get());
  else security_warning(0);
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");