Vulnerabilities > CVE-2013-6933 - Improper Restriction of Operations Within the Bounds of A Memory Buffer vulnerability in Live555 Streaming Media
Attack vector
NETWORK Attack complexity
LOW Privileges required
NONE Confidentiality impact
PARTIAL Integrity impact
PARTIAL Availability impact
PARTIAL Summary
The parseRTSPRequestString function in Live Networks Live555 Streaming Media 2011.08.13 through 2013.11.25, as used in VideoLAN VLC Media Player, allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a (1) space or (2) tab character at the beginning of an RTSP message, which triggers an integer underflow, infinite loop, and buffer overflow.
Vulnerable Configurations
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.
- Overflow Buffers Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
- Client-side Injection-induced Buffer Overflow This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
- Filter Failure through Buffer Overflow In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
- MIME Conversion An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.
Nessus
NASL family Debian Local Security Checks NASL id DEBIAN_DSA-3156.NASL description Description not provided by Debian for this vulnerability. For further details on the vulnerability, contact Debian. last seen 2020-03-17 modified 2020-03-09 plugin id 134331 published 2020-03-09 reporter This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof. source https://www.tenable.com/plugins/nessus/134331 title Debian DSA-3156-1 : liblivemedia - security update code #%NASL_MIN_LEVEL 80502 # # (C) Tenable Network Security, Inc. # # The descriptive text and package checks in this plugin were # extracted from Debian Security Advisory DSA-3156. The text # itself is copyright (C) Software in the Public Interest, Inc. # include("compat.inc"); if (description) { script_id(134331); script_version("1.2"); script_set_attribute(attribute:"plugin_modification_date", value:"2020/03/12"); script_cve_id("CVE-2013-6933"); script_bugtraq_id(65131); script_xref(name:"DSA", value:"3156"); script_name(english:"Debian DSA-3156-1 : liblivemedia - security update"); script_summary(english:"Checks dpkg output for the updated package"); script_set_attribute( attribute:"synopsis", value:"The remote Debian host is missing a security-related update." ); script_set_attribute( attribute:"description", value: "Description not provided by Debian for this vulnerability. For further details on the vulnerability, contact Debian." ); # https://security-tracker.debian.org/tracker/source-package/liblivemedia script_set_attribute( attribute:"see_also", value:"http://www.nessus.org/u?ae949efb" ); script_set_attribute( attribute:"see_also", value:"https://www.debian.org/security/2015/dsa-3156" ); script_set_attribute( attribute:"solution", value: "Upgrade the liblivemedia packages. For the stable distribution (wheezy), this problem has been fixed in version 2012.05.17-1+wheezy1." ); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); script_set_cvss_temporal_vector("CVSS2#E:ND/RL:OF/RC:C"); script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available"); script_set_attribute(attribute:"exploit_available", value:"false"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:liblivemedia"); script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:7.0"); script_set_attribute(attribute:"vuln_publication_date", value:"2014/01/23"); script_set_attribute(attribute:"patch_publication_date", value:"2015/02/07"); script_set_attribute(attribute:"plugin_publication_date", value:"2020/03/09"); 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:"7.0", prefix:"liblivemedia", reference:"2012.05.17-1+wheezy1")) flag++; if (flag) { if (report_verbosity > 0) security_hole(port:0, extra:deb_report_get()); else security_hole(0); exit(0); } else audit(AUDIT_HOST_NOT, "affected");
NASL family Windows NASL id VLC_2_1_2.NASL description The version of VLC media player installed on the remote host is earlier than 2.1.2. As such, it reportedly includes a version of Live Networks last seen 2020-06-01 modified 2020-06-02 plugin id 72279 published 2014-02-04 reporter This script is Copyright (C) 2014-2018 Tenable Network Security, Inc. source https://www.tenable.com/plugins/nessus/72279 title VLC 2.x < 2.1.2 parseRTSPRequestString Function RTSP Command Parsing Overflow code # # (C) Tenable Network Security, Inc. # include("compat.inc"); if (description) { script_id(72279); script_version("1.4"); script_cvs_date("Date: 2018/08/06 14:03:16"); script_cve_id("CVE-2013-6933", "CVE-2013-6934"); script_bugtraq_id(65131, 65139); script_name(english:"VLC 2.x < 2.1.2 parseRTSPRequestString Function RTSP Command Parsing Overflow"); script_summary(english:"Checks VLC version"); script_set_attribute( attribute:"synopsis", value: "The remote Windows host contains a media player that is affected by a buffer overflow vulnerability." ); script_set_attribute( attribute:"description", value: "The version of VLC media player installed on the remote host is earlier than 2.1.2. As such, it reportedly includes a version of Live Networks' Live555 Streaming Media library earlier than 2013.11.29. A buffer overflow vulnerability in the 'parseRTSPRequestString()' function in that library exists that could lead to a program crash or arbitrary code execution when handling a specially crafted RTSP message." ); # http://isecpartners.github.io/fuzzing/vulnerabilities/2013/12/30/vlc-vulnerability.html script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?011ac987"); script_set_attribute(attribute:"see_also", value:"http://www.live555.com/liveMedia/public/changelog.txt"); script_set_attribute(attribute:"solution", value:"Upgrade to version 2.1.2 or later."); script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P"); script_set_cvss_temporal_vector("CVSS2#E:F/RL:OF/RC: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_set_attribute(attribute:"vuln_publication_date", value:"2013/11/29"); script_set_attribute(attribute:"patch_publication_date", value:"2013/12/10"); script_set_attribute(attribute:"plugin_publication_date", value:"2014/02/04"); script_set_attribute(attribute:"plugin_type", value:"local"); script_set_attribute(attribute:"cpe", value:"cpe:/a:videolan:vlc_media_player"); script_end_attributes(); script_category(ACT_GATHER_INFO); script_family(english:"Windows"); script_copyright(english:"This script is Copyright (C) 2014-2018 Tenable Network Security, Inc."); script_dependencies("vlc_installed.nasl"); script_require_keys("SMB/VLC/installed"); exit(0); } include("audit.inc"); include("global_settings.inc"); include("misc_func.inc"); get_kb_item_or_exit("SMB/VLC/installed"); app_name = "VLC Media Player"; version = get_kb_item_or_exit("SMB/VLC/Version"); path = get_kb_item_or_exit("SMB/VLC/Path"); # Version must be greater than 2.0 or not vuln. fix = "2.1.2"; if (version =~ "^2\..*$" && ver_compare(ver:version, fix: fix, strict:FALSE) == -1) { port = get_kb_item("SMB/transport"); if (!port) port = 445; if (report_verbosity > 0) { report = '\n Path : ' + path + '\n Installed version : ' + version + '\n Fixed version : ' + fix + '\n'; security_hole(extra:report, port:port); } else security_hole(port:port); exit(0); } else audit(AUDIT_INST_PATH_NOT_VULN, app_name, version, path);