Vulnerabilities > CVE-2007-6684 - Improper Input Validation vulnerability in Videolan VLC 0.8.6D

047910
CVSS 5.0 - MEDIUM
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
NONE
Integrity impact
NONE
Availability impact
PARTIAL
network
low complexity
videolan
CWE-20
nessus

Summary

The RTSP module in VideoLAN VLC 0.8.6d allows remote attackers to cause a denial of service (crash) via a request without a Transport parameter, which triggers a NULL pointer dereference.

Vulnerable Configurations

Part Description Count
Application
Videolan
1

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Server Side Include (SSI) Injection
    An attacker can use Server Side Include (SSI) Injection to send code to a web application that then gets executed by the web server. Doing so enables the attacker to achieve similar results to Cross Site Scripting, viz., arbitrary code execution and information disclosure, albeit on a more limited scale, since the SSI directives are nowhere near as powerful as a full-fledged scripting language. Nonetheless, the attacker can conveniently gain access to sensitive files, such as password files, and execute shell commands.
  • Cross Zone Scripting
    An attacker is able to cause a victim to load content into their web-browser that bypasses security zone controls and gain access to increased privileges to execute scripting code or other web objects such as unsigned ActiveX controls or applets. This is a privilege elevation attack targeted at zone-based web-browser security. In a zone-based model, pages belong to one of a set of zones corresponding to the level of privilege assigned to that page. Pages in an untrusted zone would have a lesser level of access to the system and/or be restricted in the types of executable content it was allowed to invoke. In a cross-zone scripting attack, a page that should be assigned to a less privileged zone is granted the privileges of a more trusted zone. This can be accomplished by exploiting bugs in the browser, exploiting incorrect configuration in the zone controls, through a cross-site scripting attack that causes the attackers' content to be treated as coming from a more trusted page, or by leveraging some piece of system functionality that is accessible from both the trusted and less trusted zone. This attack differs from "Restful Privilege Escalation" in that the latter correlates to the inadequate securing of RESTful access methods (such as HTTP DELETE) on the server, while cross-zone scripting attacks the concept of security zones as implemented by a browser.
  • Cross Site Scripting through Log Files
    An attacker may leverage a system weakness where logs are susceptible to log injection to insert scripts into the system's logs. If these logs are later viewed by an administrator through a thin administrative interface and the log data is not properly HTML encoded before being written to the page, the attackers' scripts stored in the log will be executed in the administrative interface with potentially serious consequences. This attack pattern is really a combination of two other attack patterns: log injection and stored cross site scripting.
  • Command Line Execution through SQL Injection
    An attacker uses standard SQL injection methods to inject data into the command line for execution. This could be done directly through misuse of directives such as MSSQL_xp_cmdshell or indirectly through injection of data into the database that would be interpreted as shell commands. Sometime later, an unscrupulous backend application (or could be part of the functionality of the same application) fetches the injected data stored in the database and uses this data as command line arguments without performing proper validation. The malicious data escapes that data plane by spawning new commands to be executed on the host.

Nessus

NASL familyGentoo Local Security Checks
NASL idGENTOO_GLSA-200803-13.NASL
descriptionThe remote host is affected by the vulnerability described in GLSA-200803-13 (VLC: Multiple vulnerabilities) Multiple vulnerabilities were found in VLC: Michal Luczaj and Luigi Auriemma reported that VLC contains boundary errors when handling subtitles in the ParseMicroDvd(), ParseSSA(), and ParseVplayer() functions in the modules/demux/subtitle.c file, allowing for a stack-based buffer overflow (CVE-2007-6681). The web interface listening on port 8080/tcp contains a format string error in the httpd_FileCallBack() function in the network/httpd.c file (CVE-2007-6682). The browser plugin possibly contains an argument injection vulnerability (CVE-2007-6683). The RSTP module triggers a NULL pointer dereference when processing a request without a
last seen2020-06-01
modified2020-06-02
plugin id31439
published2008-03-13
reporterThis script is Copyright (C) 2008-2019 Tenable Network Security, Inc.
sourcehttps://www.tenable.com/plugins/nessus/31439
titleGLSA-200803-13 : VLC: Multiple vulnerabilities
code
#%NASL_MIN_LEVEL 80502
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Gentoo Linux Security Advisory GLSA 200803-13.
#
# The advisory text is Copyright (C) 2001-2016 Gentoo Foundation, Inc.
# and licensed under the Creative Commons - Attribution / Share Alike 
# license. See http://creativecommons.org/licenses/by-sa/3.0/
#

include("compat.inc");

if (description)
{
  script_id(31439);
  script_version("1.15");
  script_cvs_date("Date: 2019/08/02 13:32:44");

  script_cve_id("CVE-2007-6681", "CVE-2007-6682", "CVE-2007-6683", "CVE-2007-6684", "CVE-2008-0295", "CVE-2008-0296", "CVE-2008-0984");
  script_xref(name:"GLSA", value:"200803-13");

  script_name(english:"GLSA-200803-13 : VLC: Multiple vulnerabilities");
  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-200803-13
(VLC: Multiple vulnerabilities)

    Multiple vulnerabilities were found in VLC:
    Michal Luczaj
    and Luigi Auriemma reported that VLC contains boundary errors when
    handling subtitles in the ParseMicroDvd(), ParseSSA(), and
    ParseVplayer() functions in the modules/demux/subtitle.c file, allowing
    for a stack-based buffer overflow (CVE-2007-6681).
    The web
    interface listening on port 8080/tcp contains a format string error in
    the httpd_FileCallBack() function in the network/httpd.c file
    (CVE-2007-6682).
    The browser plugin possibly contains an
    argument injection vulnerability (CVE-2007-6683).
    The RSTP
    module triggers a NULL pointer dereference when processing a request
    without a 'Transport' parameter (CVE-2007-6684).
    Luigi
    Auriemma and Remi Denis-Courmont found a boundary error in the
    modules/access/rtsp/real_sdpplin.c file when processing SDP data for
    RTSP sessions (CVE-2008-0295) and a vulnerability in the
    libaccess_realrtsp plugin (CVE-2008-0296), possibly resulting in a
    heap-based buffer overflow.
    Felipe Manzano and Anibal Sacco
    (Core Security Technologies) discovered an arbitrary memory overwrite
    vulnerability in VLC's MPEG-4 file format parser (CVE-2008-0984).
  
Impact :

    A remote attacker could send a long subtitle in a file that a user is
    enticed to open, a specially crafted MP4 input file, long SDP data, or
    a specially crafted HTTP request with a 'Connection' header value
    containing format specifiers, possibly resulting in the remote
    execution of arbitrary code. Also, a Denial of Service could be caused
    and arbitrary files could be overwritten via the 'demuxdump-file'
    option in a filename in a playlist or via an EXTVLCOPT statement in an
    MP3 file.
  
Workaround :

    There is no known workaround at this time."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://security.gentoo.org/glsa/200803-13"
  );
  script_set_attribute(
    attribute:"solution", 
    value:
"All VLC users should upgrade to the latest version:
    # emerge --sync
    # emerge --ask --oneshot --verbose '>=media-video/vlc-0.8.6e'"
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_cwe_id(20, 119, 399);

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

  script_set_attribute(attribute:"patch_publication_date", value:"2008/03/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2008/03/13");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2008-2019 Tenable Network Security, Inc.");
  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:"media-video/vlc", unaffected:make_list("ge 0.8.6e"), vulnerable:make_list("lt 0.8.6e"))) 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, "VLC");
}

Oval

accepted2012-11-19T04:00:24.550-05:00
classvulnerability
contributors
  • nameShane Shaffer
    organizationG2, Inc.
  • nameShane Shaffer
    organizationG2, Inc.
definition_extensions
commentVLC media player is installed
ovaloval:org.mitre.oval:def:11821
descriptionThe RTSP module in VideoLAN VLC 0.8.6d allows remote attackers to cause a denial of service (crash) via a request without a Transport parameter, which triggers a NULL pointer dereference.
familywindows
idoval:org.mitre.oval:def:14876
statusaccepted
submitted2012-01-24T15:20:33.178-04:00
titleThe RTSP module in VideoLAN VLC 0.8.6d allows remote attackers to cause a denial of service
version6