Vulnerabilities > CVE-2011-3263 - Resource Management Errors vulnerability in Zabbix

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
zabbix
CWE-399
nessus

Summary

zabbix_agentd in Zabbix before 1.8.6 and 1.9.x before 1.9.4 allows context-dependent attackers to cause a denial of service (CPU consumption) by executing the vfs.file.cksum command for a special device, as demonstrated by the /dev/urandom device.

Common Weakness Enumeration (CWE)

Nessus

  • NASL familyCGI abuses
    NASL idZABBIX_FRONTEND_1_8_6.NASL
    descriptionAccording to its self-reported version number, the instance of Zabbix listening on the remote host is earlier than 1.8.6. It could, therefore, be affected by multiple vulnerabilities. - An input validation error exists in the script
    last seen2020-06-01
    modified2020-06-02
    plugin id56091
    published2011-09-07
    reporterThis script is Copyright (C) 2011-2018 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/56091
    titleZabbix < 1.8.6 Multiple Vulnerabilities
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    
    include("compat.inc");
    
    
    if (description)
    {
      script_id(56091);
      script_version("1.9");
      script_cvs_date("Date: 2018/11/15 20:50:19");
    
      script_cve_id("CVE-2011-2904", "CVE-2011-3263", "CVE-2011-3264");
      script_bugtraq_id(49016, 49275, 63920);
    
      script_name(english:"Zabbix < 1.8.6 Multiple Vulnerabilities");
      script_summary(english:"Checks Zabbix Version");
    
      script_set_attribute(
        attribute:"synopsis",
        value:
    "The remote web application may be affected by multiple
    vulnerabilities."
      );
      script_set_attribute(
        attribute:"description",
        value:
    "According to its self-reported version number, the instance of Zabbix
    listening on the remote host is earlier than 1.8.6.  It could,
    therefore, be affected by multiple vulnerabilities. 
    
      - An input validation error exists in the script
        'acknow.php' that allows arbitrary script or HTML
        injection via the 'backurl' parameter. (CVE-2011-2904)
    
      - An error exists related to 'zabbix_agentd' and
        'vfs.file.cksum'. An attacker could cause excessive CPU
        usage if the 'vfs.file.cksum' command is pointed at a
        special device such as '/dev/urandom'. (CVE-2011-3263)
    
      - An information disclosure vulnerability exists in the
        script 'popup.php' because the 'srcfld2' parameter is
        not properly checked. This vulnerability can reveal
        sensitive information such as the application's install
        path. (CVE-2011-3264)
    
    Note that Nessus has not tested for these flaws but has instead relied
    on the version in the Zabbix login page."
      );
      # http://web.archive.org/web/20120304113355/http://secnut.blogspot.com/2011/05/zabbix-cross-site-scripting.html
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?ad30fa5c");
      script_set_attribute(attribute:"see_also", value:"https://support.zabbix.com/browse/ZBX-3794");
      script_set_attribute(attribute:"see_also", value:"https://support.zabbix.com/browse/ZBX-3835");
      script_set_attribute(attribute:"see_also", value:"https://support.zabbix.com/browse/ZBX-3840");
      script_set_attribute(attribute:"see_also", value:"https://www.zabbix.com/rn/rn1.9.4");
      script_set_attribute(attribute:"solution", value:"Update Zabbix to version 1.8.6 or later.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N");
      script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"No exploit is required");
      script_set_attribute(attribute:"exploit_available", value:"false");
      script_cwe_id(20, 74, 79, 442, 629, 711, 712, 722, 725, 750, 751, 800, 801, 809, 811, 864, 900, 928, 931, 990);
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2011/05/23");
      script_set_attribute(attribute:"patch_publication_date", value:"2011/08/04");
      script_set_attribute(attribute:"plugin_publication_date", value:"2011/09/07");
    
      script_set_attribute(attribute:"potential_vulnerability", value:"true");
      script_set_attribute(attribute:"plugin_type", value:"remote");
      script_set_attribute(attribute:"cpe", value:"cpe:/a:zabbix:zabbix");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"CGI abuses");
    
      script_copyright(english:"This script is Copyright (C) 2011-2018 Tenable Network Security, Inc.");
    
      script_dependencies("zabbix_frontend_detect.nasl");
      script_require_keys("www/zabbix", "Settings/ParanoidReport");
      script_require_ports("Services/www", 80);
    
      exit(0);
    }
    
    include("audit.inc");
    include("global_settings.inc");
    include("misc_func.inc");
    include("http.inc");
    include("webapp_func.inc");
    
    port = get_http_port(default:80, php:TRUE);
    install = get_install_from_kb(appname:"zabbix", port:port, exit_on_fail:TRUE);
    
    ver = install['ver'];
    dir = install['dir'];
    install_url = build_url(port:port, qs:dir);
    
    if (ver == UNKNOWN_VER) audit(AUDIT_UNKNOWN_WEB_APP_VER, "Zabbix", install_url);
    
    if (report_paranoia < 2) audit(AUDIT_PARANOID);
    
    fix_version = '1.8.6';
    if (ver_compare(ver:ver, fix:fix_version, strict:FALSE) < 0)
    {
      set_kb_item(name:'www/'+port+'/XSS', value:TRUE);
      if (report_verbosity > 0)
      {
        report =
          '\n  URL               : ' + install_url +
          '\n  Installed version : ' + ver+
          '\n  Fixed version     : ' + fix_version + '\n';
        security_warning(port:port, extra:report);
      }
      else security_warning(port);
      exit(0);
    }
    audit(AUDIT_WEB_APP_NOT_AFFECTED, "Zabbix", install_url, ver);
    
  • NASL familyGentoo Local Security Checks
    NASL idGENTOO_GLSA-201311-15.NASL
    descriptionThe remote host is affected by the vulnerability described in GLSA-201311-15 (Zabbix: Multiple vulnerabilities) Multiple vulnerabilities have been discovered in Zabbix. Please review the CVE identifiers referenced below for details. Impact : A remote attacker may be able to execute arbitrary SQL statements, cause a Denial of Service condition, or obtain sensitive information. Workaround : There is no known workaround at this time.
    last seen2020-06-01
    modified2020-06-02
    plugin id71089
    published2013-11-26
    reporterThis script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/71089
    titleGLSA-201311-15 : Zabbix: Multiple vulnerabilities
  • NASL familyCGI abuses
    NASL idZABBIX_FRONTEND_1_9_4.NASL
    descriptionAccording to its self-reported version number, the instance of Zabbix listening on the remote host is 1.9.x prior to 1.9.4. It could, therefore, be affected by a denial of service vulnerability related to
    last seen2020-06-01
    modified2020-06-02
    plugin id71535
    published2013-12-19
    reporterThis script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/71535
    titleZabbix 1.9.x < 1.9.4 zabbix_agentd DoS
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2011-10583.NASL
    description - update to 1.8.6 - upstream changelog at http://www.zabbix.com/rn1.8.6.php Note that Tenable Network Security has extracted the preceding description block directly from the Fedora security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-01
    modified2020-06-02
    plugin id55947
    published2011-08-23
    reporterThis script is Copyright (C) 2011-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/55947
    titleFedora 16 : zabbix-1.8.6-1.fc16 (2011-10583)