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nessusThis script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.FREEBSD_PKG_3A1DC8C8BB2711EC98D1D43D7EED0CE2.NASL
HistoryApr 13, 2022 - 12:00 a.m.

FreeBSD : Subversion -- Multiple vulnerabilities in server code (3a1dc8c8-bb27-11ec-98d1-d43d7eed0ce2)

2022-04-1300:00:00
This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
11

6.5 Medium

AI Score

Confidence

Low

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the 3a1dc8c8-bb27-11ec-98d1-d43d7eed0ce2 advisory.

  • Apache Subversion SVN authz protected copyfrom paths regression Subversion servers reveal ‘copyfrom’ paths that should be hidden according to configured path-based authorization (authz) rules. When a node has been copied from a protected location, users with access to the copy can see the ‘copyfrom’ path of the original. This also reveals the fact that the node was copied. Only the ‘copyfrom’ path is revealed; not its contents. Both httpd and svnserve servers are vulnerable. (CVE-2021-28544)

  • Subversion’s mod_dav_svn is vulnerable to memory corruption. While looking up path-based authorization rules, mod_dav_svn servers may attempt to use memory which has already been freed. Affected Subversion mod_dav_svn servers 1.10.0 through 1.14.1 (inclusive). Servers that do not use mod_dav_svn are not affected. (CVE-2022-24070)

Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable, Inc.
#
# @NOAGENT@
#
# The descriptive text and package checks in this plugin were
# extracted from the FreeBSD VuXML database :
#
# Copyright 2003-2021 Jacques Vidrine and contributors
#
# Redistribution and use in source (VuXML) and 'compiled' forms (SGML,
# HTML, PDF, PostScript, RTF and so forth) with or without modification,
# are permitted provided that the following conditions are met:
# 1. Redistributions of source code (VuXML) must retain the above
#    copyright notice, this list of conditions and the following
#    disclaimer as the first lines of this file unmodified.
# 2. Redistributions in compiled form (transformed to other DTDs,
#    published online in any format, converted to PDF, PostScript,
#    RTF and other formats) must reproduce the above copyright
#    notice, this list of conditions and the following disclaimer
#    in the documentation and/or other materials provided with the
#    distribution.
#
# THIS DOCUMENTATION IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS"
# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
# PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
# BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
# OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
# BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
# WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
# OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS DOCUMENTATION,
# EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#

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

if (description)
{
  script_id(159710);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/11/01");

  script_cve_id("CVE-2021-28544", "CVE-2022-24070");

  script_name(english:"FreeBSD : Subversion -- Multiple vulnerabilities in server code (3a1dc8c8-bb27-11ec-98d1-d43d7eed0ce2)");

  script_set_attribute(attribute:"synopsis", value:
"The remote FreeBSD host is missing one or more security-related updates.");
  script_set_attribute(attribute:"description", value:
"The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by multiple
vulnerabilities as referenced in the 3a1dc8c8-bb27-11ec-98d1-d43d7eed0ce2 advisory.

  - Apache Subversion SVN authz protected copyfrom paths regression Subversion servers reveal 'copyfrom' paths
    that should be hidden according to configured path-based authorization (authz) rules. When a node has been
    copied from a protected location, users with access to the copy can see the 'copyfrom' path of the
    original. This also reveals the fact that the node was copied. Only the 'copyfrom' path is revealed; not
    its contents. Both httpd and svnserve servers are vulnerable. (CVE-2021-28544)

  - Subversion's mod_dav_svn is vulnerable to memory corruption. While looking up path-based authorization
    rules, mod_dav_svn servers may attempt to use memory which has already been freed. Affected Subversion
    mod_dav_svn servers 1.10.0 through 1.14.1 (inclusive). Servers that do not use mod_dav_svn are not
    affected. (CVE-2022-24070)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://subversion.apache.org/security/CVE-2021-28544-advisory.txt");
  script_set_attribute(attribute:"see_also", value:"https://subversion.apache.org/security/CVE-2022-24070-advisory.txt");
  # https://vuxml.freebsd.org/freebsd/3a1dc8c8-bb27-11ec-98d1-d43d7eed0ce2.html
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?af82e870");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:S/C:P/I:N/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:L/UI:N/S:U/C:L/I:N/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-2021-28544");

  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:"2022/04/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2022/04/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2022/04/13");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:mod_dav_svn");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:mod_dav_svn-lts");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:subversion");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:freebsd:freebsd:subversion-lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2022-2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info");

  exit(0);
}


include("freebsd_package.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/FreeBSD/release")) audit(AUDIT_OS_NOT, "FreeBSD");
if (!get_kb_item("Host/FreeBSD/pkg_info")) audit(AUDIT_PACKAGE_LIST_MISSING);


var flag = 0;

var packages = [
    'mod_dav_svn-lts>=1.10.0<1.10.8',
    'mod_dav_svn>=1.10.0<1.10.8',
    'mod_dav_svn>=1.11.0<1.14.2',
    'subversion-lts>=1.10.0<1.10.8',
    'subversion>=1.10.0<1.10.8',
    'subversion>=1.11.0<1.14.2'
];

foreach var package( packages ) {
    if (pkg_test(save_report:TRUE, pkg: package)) flag++;
}

if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_NOTE,
    extra      : pkg_report_get()
  );
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");
VendorProductVersionCPE
freebsdfreebsdmod_dav_svnp-cpe:/a:freebsd:freebsd:mod_dav_svn
freebsdfreebsdmod_dav_svn-ltsp-cpe:/a:freebsd:freebsd:mod_dav_svn-lts
freebsdfreebsdsubversionp-cpe:/a:freebsd:freebsd:subversion
freebsdfreebsdsubversion-ltsp-cpe:/a:freebsd:freebsd:subversion-lts
freebsdfreebsdcpe:/o:freebsd:freebsd