Vulnerabilities > CVE-2014-1452 - Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in Freebsd

047910
CVSS 0.0 - NONE
Attack vector
UNKNOWN
Attack complexity
UNKNOWN
Privileges required
UNKNOWN
Confidentiality impact
UNKNOWN
Integrity impact
UNKNOWN
Availability impact
UNKNOWN

Summary

Stack-based buffer overflow in lib/snmpagent.c in bsnmpd, as used in FreeBSD 8.3 through 10.0, allows remote attackers to cause a denial of service (daemon crash) and possibly execute arbitrary code via a crafted GETBULK PDU request.

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 familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_4C96ECF25FD911E6A6C314DAE9D210B8.NASL
    descriptionProblem Description : The bsnmpd(8) daemon is prone to a stack-based buffer-overflow when it has received a specifically crafted GETBULK PDU request. Impact : This issue could be exploited to execute arbitrary code in the context of the service daemon, or crash the service daemon, causing a denial-of-service.
    last seen2020-06-01
    modified2020-06-02
    plugin id92897
    published2016-08-12
    reporterThis script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/92897
    titleFreeBSD : FreeBSD -- bsnmpd remote denial of service vulnerability (4c96ecf2-5fd9-11e6-a6c3-14dae9d210b8)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from the FreeBSD VuXML database :
    #
    # Copyright 2003-2018 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("compat.inc");
    
    if (description)
    {
      script_id(92897);
      script_version("2.3");
      script_cvs_date("Date: 2018/11/10 11:49:45");
    
      script_cve_id("CVE-2014-1452");
      script_bugtraq_id(64967);
      script_xref(name:"FreeBSD", value:"SA-14:01.bsnmpd");
    
      script_name(english:"FreeBSD : FreeBSD -- bsnmpd remote denial of service vulnerability (4c96ecf2-5fd9-11e6-a6c3-14dae9d210b8)");
      script_summary(english:"Checks for updated packages in pkg_info output");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:
    "The remote FreeBSD host is missing one or more security-related
    updates."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "Problem Description :
    
    The bsnmpd(8) daemon is prone to a stack-based buffer-overflow when it
    has received a specifically crafted GETBULK PDU request.
    
    Impact :
    
    This issue could be exploited to execute arbitrary code in the context
    of the service daemon, or crash the service daemon, causing a
    denial-of-service."
      );
      # https://vuxml.freebsd.org/freebsd/4c96ecf2-5fd9-11e6-a6c3-14dae9d210b8.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?4359e814"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected packages.");
      script_set_cvss_base_vector("CVSS2#AV:A/AC:L/Au:N/C:P/I:P/A:P");
      script_set_cvss_temporal_vector("CVSS2#E:U/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:freebsd:freebsd:FreeBSD");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:freebsd:freebsd");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2014/01/14");
      script_set_attribute(attribute:"patch_publication_date", value:"2016/08/11");
      script_set_attribute(attribute:"plugin_publication_date", value:"2016/08/12");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2016-2018 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"FreeBSD Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/FreeBSD/release", "Host/FreeBSD/pkg_info", "Settings/ParanoidReport");
    
      exit(0);
    }
    
    
    include("audit.inc");
    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);
    
    
    if (report_paranoia < 2) audit(AUDIT_PARANOID);
    
    flag = 0;
    
    if (pkg_test(save_report:TRUE, pkg:"FreeBSD>=9.2<9.2_3")) flag++;
    if (pkg_test(save_report:TRUE, pkg:"FreeBSD>=9.1<9.1_10")) flag++;
    if (pkg_test(save_report:TRUE, pkg:"FreeBSD>=8.4<8.4_7")) flag++;
    if (pkg_test(save_report:TRUE, pkg:"FreeBSD>=8.3<8.3_14")) flag++;
    
    if (flag)
    {
      if (report_verbosity > 0) security_warning(port:0, extra:pkg_report_get());
      else security_warning(0);
      exit(0);
    }
    else audit(AUDIT_HOST_NOT, "affected");
    
  • NASL familyFirewalls
    NASL idPFSENSE_SA-14_03.NASL
    descriptionAccording to its self-reported version number, the remote pfSense install is prior to 2.1.1. It is, therefore, affected by multiple vulnerabilities as stated in the referenced vendor advisories.
    last seen2020-06-01
    modified2020-06-02
    plugin id106488
    published2018-01-31
    reporterThis script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/106488
    titlepfSense < 2.1.1 Multiple Vulnerabilities (SA-14_02 / SA-14_03)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(106488);
      script_version("1.6");
      script_cvs_date("Date: 2019/11/08");
    
      script_cve_id(
        "CVE-2013-4353",
        "CVE-2013-5211",
        "CVE-2013-6449",
        "CVE-2013-6450",
        "CVE-2014-1452"
      );
      script_bugtraq_id(
        64530,
        64618,
        64691,
        64692,
        64967
      );
      script_xref(name:"FreeBSD", value:"SA-14:01.bsnmpd");
      script_xref(name:"FreeBSD", value:"SA-14:02.ntpd");
      script_xref(name:"FreeBSD", value:"SA-14:03.openssl");
    
      script_name(english:"pfSense < 2.1.1 Multiple Vulnerabilities (SA-14_02 / SA-14_03)");
      script_summary(english:"Checks the version of pfSense.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote firewall host is affected by multiple vulnerabilities.");
      script_set_attribute(attribute:"description", value:
    "According to its self-reported version number, the remote pfSense
    install is prior to 2.1.1. It is, therefore, affected by multiple
    vulnerabilities as stated in the referenced vendor advisories.");
      script_set_attribute(attribute:"see_also", value:"https://doc.pfsense.org/index.php/2.1.1_New_Features_and_Changes");
      # https://www.pfsense.org/security/advisories/pfSense-SA-14_02.webgui.asc
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?df2891d0");
      # https://www.pfsense.org/security/advisories/pfSense-SA-14_03.webgui.asc
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?780104d5");
      script_set_attribute(attribute:"solution", value:
    "Upgrade to pfSense version 2.1.1 or later.");
      script_set_cvss_base_vector("CVSS2#AV:A/AC:L/Au:N/C:P/I:P/A:P");
      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:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
      script_set_attribute(attribute:"cvss_score_source", value:"CVE-2014-1452");
    
      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:"2014/02/04");
      script_set_attribute(attribute:"patch_publication_date", value:"2014/02/04");
      script_set_attribute(attribute:"plugin_publication_date", value:"2018/01/31");
    
      script_set_attribute(attribute:"plugin_type", value:"remote");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:pfsense:pfsense");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:bsdperimeter:pfsense");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"Firewalls");
    
      script_copyright(english:"This script is Copyright (C) 2018-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      script_dependencies("pfsense_detect.nbin");
      script_require_keys("Host/pfSense");
    
      exit(0);
    }
    
    include("vcf.inc");
    include("vcf_extras.inc");
    
    if (!get_kb_item("Host/pfSense")) audit(AUDIT_HOST_NOT, "pfSense");
    
    app_info = vcf::pfsense::get_app_info();
    constraints = [
      { "fixed_version" : "2.1.1" }
    ];
    
    vcf::pfsense::check_version_and_report(
      app_info:app_info,
      constraints:constraints,
      severity:SECURITY_WARNING,
      flags:{xss:TRUE}
    );
    

Seebug

bulletinFamilyexploit
descriptionBUGTRAQ ID: 64967 CVE(CAN) ID: CVE-2014-1452 FreeBSD bsnmpd是简单的可扩展SNMP后台程序。 bsnmpd(8)后台程序在处理特制的GETBULK PDU请求时存在栈缓冲区溢出漏洞,成功利用后可导致在服务程序上下文中执行任意代码,造成拒绝服务。 0 FreeBSD FreeBSD 9.x 临时解决方法: FreeBSD推荐下列三种做法: 1) 升级您现在受影响的系统到漏洞修复日期后的FreeBSD stable或 release / security branch (releng)。 2) 用源代码补丁更新您的受影响系统: 经验证,下列补丁适用于FreeBSD release分支。 a) 从以下位置下载相关补丁,并使用PGP工具验证附带的PGP签名。 # fetch http://security.FreeBSD.org/patches/SA-14:01/bsnmpd.patch # fetch http://security.FreeBSD.org/patches/SA-14:01/bsnmpd.patch.asc # gpg --verify bsnmpd.patch.asc b) 应用补丁。 # cd /usr/src # patch &lt; /path/to/patch c) 按&lt;URL:http://www.FreeBSD.org/handbook/makeworld.html&gt;重新编译kernel并重启系统。 3) 用二进制本地更新您受影响系统: 运行RELEASE版本的系统(i386或amd64平台)可通过freebsd-update(8) utility更新系统: # freebsd-update fetch # freebsd-update install 厂商补丁: FreeBSD ------- FreeBSD已经为此发布了一个安全公告(FreeBSD-SA-14:01.bsnmpd)以及相应补丁: FreeBSD-SA-14:01.bsnmpd:bsnmpd remote denial of service vulnerability 链接:http://security.FreeBSD.org/advisories/FreeBSD-SA-14:01.bsnmpd.asc
idSSV:61338
last seen2017-11-19
modified2014-01-17
published2014-01-17
reporterRoot
titleFreeBSD bsnmpd 'GETBULK PDU'请求远程栈缓冲区溢出漏洞