Debian DLA-2564-1 : php-horde-text-filter security update

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Debian Security Advisory DLA-2564-1. The text
# itself is copyright (C) Software in the Public Interest, Inc.
#

include('compat.inc');

if (description)
{
  script_id(146700);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/01/19");

  script_cve_id("CVE-2021-26929");

  script_name(english:"Debian DLA-2564-1 : php-horde-text-filter security update");

  script_set_attribute(attribute:"synopsis", value:
"The remote Debian host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"Alex Birnberg discovered a cross-site scripting (XSS) vulnerability in
the Horde Application Framework, more precisely its Text Filter API.
An attacker could take control of a user's mailbox by sending a
crafted e-mail.

CVE-2021-26929

An XSS issue was discovered in Horde Groupware Webmail Edition (where
the Horde_Text_Filter library is used). The attacker can send a plain
text e-mail message, with JavaScript encoded as a link or email that
is mishandled by preProcess in Text2html.php, because bespoke use of
\x00\x00\x00 and \x01\x01\x01 interferes with XSS defenses.

For Debian 9 stretch, this problem has been fixed in version
2.3.5-1+deb9u1.

We recommend that you upgrade your php-horde-text-filter packages.

For the detailed security status of php-horde-text-filter please refer
to its security tracker page at:
https://security-tracker.debian.org/tracker/php-horde-text-filter

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/2021/02/msg00028.html");
  script_set_attribute(attribute:"see_also", value:"https://packages.debian.org/source/stretch/php-horde-text-filter");
  # https://security-tracker.debian.org/tracker/source-package/php-horde-text-filter
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b9957030");
  script_set_attribute(attribute:"solution", value:
"Upgrade the affected php-horde-text-filter package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-26929");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/02/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/02/19");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/02/22");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:php-horde-text-filter");
  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) 2021-2024 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:"9.0", prefix:"php-horde-text-filter", reference:"2.3.5-1+deb9u1")) 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");