GLSA-200405-14 : Buffer overflow in Subversion - Nessus

High Plugin ID: 14500

This page contains detailed information about the GLSA-200405-14 : Buffer overflow in Subversion Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

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Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 14500
Name: GLSA-200405-14 : Buffer overflow in Subversion
Filename: gentoo_GLSA-200405-14.nasl
Vulnerability Published: N/A
This Plugin Published: 2004-08-30
Last Modification Time: 2021-01-06
Plugin Version: 1.19
Plugin Type: local
Plugin Family: Gentoo Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/Gentoo/qpkg-list, Host/Gentoo/release, Host/local_checks_enabled

Vulnerability Information

Severity: High
Vulnerability Published: N/A
Patch Published: 2004-05-20
CVE [?]: CVE-2004-0397
CPE [?]: cpe:/o:gentoo:linux, p-cpe:/a:gentoo:linux:subversion

Synopsis

The remote Gentoo host is missing one or more security-related patches.

Description

The remote host is affected by the vulnerability described in GLSA-200405-14 (Buffer overflow in Subversion)

All releases of Subversion prior to 1.0.3 have a vulnerability in the date-parsing code. This vulnerability may allow denial of service or arbitrary code execution as the Subversion user. Both the client and server are vulnerable, and write access is NOT required to the server's repository. Impact :

All servers and clients are vulnerable. Specifically, clients that allow other users to write to administrative files in a working copy may be exploited. Additionally all servers (whether they are httpd/DAV or svnserve) are vulnerable. Write access to the server is not required; public read-only Subversion servers are also exploitable. Workaround :

There is no known workaround at this time. All users are encouraged to upgrade to the latest available version.

Solution

All Subversion users should upgrade to the latest stable version: # emerge sync # emerge -pv '>=dev-util/subversion-1.0.3' # emerge '>=dev-util/subversion-1.0.3'

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (Metasploit Framework, Exploit-DB, Immunity Canvas)
Exploit Ease: Exploits are available

Here's the list of publicly known exploits and PoCs for verifying the GLSA-200405-14 : Buffer overflow in Subversion vulnerability:

Metasploit: exploit/multi/svn/svnserve_date
[Subversion Date Svnserve]
Exploit-DB: exploits/unix/dos/16284.rb
[EDB-16284: Subversion - Date Svnserve (Metasploit)]
Exploit-DB: exploits/multiple/remote/9935.rb
[EDB-9935: Subversion 1.0.2 - Date Overflow (Metasploit)]
Immunity Canvas: CANVAS

Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.

WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.

Risk Information

CVSS V2 Vector [?]: AV:N/AC:L/Au:N/C:P/I:P/A:P

CVSS Base Score:	7.5 (High)
Impact Subscore:	6.4
Exploitability Subscore:	10.0
CVSS Temporal Score:	NA (None)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	7.5 (High)

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Plugin Source

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 200405-14.
#
# The advisory text is Copyright (C) 2001-2018 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

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

if (description)
{
  script_id(14500);
  script_version("1.19");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2004-0397");
  script_xref(name:"GLSA", value:"200405-14");

  script_name(english:"GLSA-200405-14 : Buffer overflow in Subversion");
  script_summary(english:"Checks for updated package(s) in /var/db/pkg");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Gentoo host is missing one or more security-related
patches."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"The remote host is affected by the vulnerability described in GLSA-200405-14
(Buffer overflow in Subversion)

    All releases of Subversion prior to 1.0.3 have a vulnerability in the
    date-parsing code. This vulnerability may allow denial of service or
    arbitrary code execution as the Subversion user. Both the client and
    server are vulnerable, and write access is NOT required to the server's
    repository.
  
Impact :

    All servers and clients are vulnerable. Specifically, clients that
    allow other users to write to administrative files in a working copy
    may be exploited. Additionally all servers (whether they are httpd/DAV
    or svnserve) are vulnerable. Write access to the server is not
    required; public read-only Subversion servers are also exploitable.
  
Workaround :

    There is no known workaround at this time. All users are encouraged to
    upgrade to the latest available version."
  );
  # http://subversion.tigris.org/servlets/ReadMsg?list=announce&msgNo=125
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?1853132a"
  );
  # http://security.e-matters.de/advisories/082004.html
  script_set_attribute(
    attribute:"see_also",
    value:"http://www.nessus.org/u?8a28c1fb"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/200405-14"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All Subversion users should upgrade to the latest stable version:
    # emerge sync
    # emerge -pv '>=dev-util/subversion-1.0.3'
    # emerge '>=dev-util/subversion-1.0.3'"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"metasploit_name", value:'Subversion Date Svnserve');
  script_set_attribute(attribute:"exploit_framework_metasploit", value:"true");
  script_set_attribute(attribute:"exploit_framework_canvas", value:"true");
  script_set_attribute(attribute:"canvas_package", value:'CANVAS');

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:gentoo:linux:subversion");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:gentoo:linux");

  script_set_attribute(attribute:"patch_publication_date", value:"2004/05/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2004/08/30");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2004-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Gentoo Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Gentoo/release", "Host/Gentoo/qpkg-list");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("qpkg.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Gentoo/release")) audit(AUDIT_OS_NOT, "Gentoo");
if (!get_kb_item("Host/Gentoo/qpkg-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


flag = 0;

if (qpkg_check(package:"dev-util/subversion", unaffected:make_list("ge 1.0.3"), vulnerable:make_list("le 1.0.2"))) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:qpkg_report_get());
  else security_hole(0);
  exit(0);
}
else
{
  tested = qpkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "dev-util/subversion");
}

The latest version of this script can be found in these locations depending on your platform:

Linux / Unix:
/opt/nessus/lib/nessus/plugins/gentoo_GLSA-200405-14.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\gentoo_GLSA-200405-14.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/gentoo_GLSA-200405-14.nasl

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How to Run

Here is how to run the GLSA-200405-14 : Buffer overflow in Subversion as a standalone plugin via the Nessus web user interface (https://localhost:8834/):

Click to start a New Scan.
Select Advanced Scan.
Navigate to the Plugins tab.
On the top right corner click to Disable All plugins.
On the left side table select Gentoo Local Security Checks plugin family.
On the right side table select GLSA-200405-14 : Buffer overflow in Subversion plugin ID 14500.
Specify the target on the Settings tab and click to Save the scan.
Run the scan.

Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.

Basic usage:

/opt/nessus/bin/nasl gentoo_GLSA-200405-14.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a gentoo_GLSA-200405-14.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - gentoo_GLSA-200405-14.nasl -t <IP/HOST>

Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):

/opt/nessus/bin/nasl -K /tmp/state gentoo_GLSA-200405-14.nasl -t <IP/HOST>

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References

GLSA | Gentoo Linux Security Advisory:

200405-14

See also:

Similar and related Nessus plugins:

13702 - Fedora Core 1 : subversion-0.32.1-2 (2004-127)
13703 - Fedora Core 2 : subversion-1.0.2-2.1 (2004-128)
36673 - FreeBSD : subversion date parsing vulnerability (5d36ef32-a9cf-11d8-9c6d-0020ed76ef5a)
12261 - Subversion < 1.0.3 apr_time_t data Conversion Remote Overflow

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file gentoo_GLSA-200405-14.nasl version 1.19. For more plugins, visit the Nessus Plugin Library.

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GLSA-200405-14 : Buffer overflow in Subversion - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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