Vulnerabilities > CVE-2018-4059 - Missing Authorization vulnerability in Coturn Project Coturn

047910
CVSS 9.8 - CRITICAL
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH
network
low complexity
coturn-project
CWE-862
critical
nessus

Summary

An exploitable unsafe default configuration vulnerability exists in the TURN server function of coTURN prior to version 4.5.0.9. By default, the TURN server runs an unauthenticated telnet admin portal on the loopback interface. This can provide administrator access to the TURN server configuration, which can lead to additional attacks. An attacker who can get access to the telnet port can gain administrator access to the TURN server.

Common Weakness Enumeration (CWE)

Nessus

  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-4373.NASL
    descriptionMultiple vulnerabilities were discovered in coTURN, a TURN and STUN server for VoIP. - CVE-2018-4056 A SQL injection vulnerability was discovered in the coTURN administrator web portal. As the administration web interface is shared with the production, it is unfortunately not possible to easily filter outside access and this security update completely disable the web interface. Users should use the local, command line interface instead. - CVE-2018-4058 Default configuration enables unsafe loopback forwarding. A remote attacker with access to the TURN interface can use this vulnerability to gain access to services that should be local only. - CVE-2018-4059 Default configuration uses an empty password for the local command line administration interface. An attacker with access to the local console (either a local attacker or a remote attacker taking advantage of CVE-2018-4058 ) could escalade privileges to administrator of the coTURN server.
    last seen2020-03-17
    modified2019-01-29
    plugin id121425
    published2019-01-29
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/121425
    titleDebian DSA-4373-1 : coturn - security update
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from Debian Security Advisory DSA-4373. The text 
    # itself is copyright (C) Software in the Public Interest, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(121425);
      script_version("1.4");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/02/20");
    
      script_cve_id("CVE-2018-4056", "CVE-2018-4058", "CVE-2018-4059");
      script_xref(name:"DSA", value:"4373");
    
      script_name(english:"Debian DSA-4373-1 : coturn - 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:
    "Multiple vulnerabilities were discovered in coTURN, a TURN and STUN
    server for VoIP.
    
      - CVE-2018-4056
        A SQL injection vulnerability was discovered in the
        coTURN administrator web portal. As the administration
        web interface is shared with the production, it is
        unfortunately not possible to easily filter outside
        access and this security update completely disable the
        web interface. Users should use the local, command line
        interface instead.
    
      - CVE-2018-4058
        Default configuration enables unsafe loopback
        forwarding. A remote attacker with access to the TURN
        interface can use this vulnerability to gain access to
        services that should be local only.
    
      - CVE-2018-4059
        Default configuration uses an empty password for the
        local command line administration interface. An attacker
        with access to the local console (either a local
        attacker or a remote attacker taking advantage of
        CVE-2018-4058 ) could escalade privileges to
        administrator of the coTURN server."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security-tracker.debian.org/tracker/CVE-2018-4056"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security-tracker.debian.org/tracker/CVE-2018-4058"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security-tracker.debian.org/tracker/CVE-2018-4059"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security-tracker.debian.org/tracker/CVE-2018-4058"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://security-tracker.debian.org/tracker/source-package/coturn"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://packages.debian.org/source/stretch/coturn"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://www.debian.org/security/2019/dsa-4373"
      );
      script_set_attribute(
        attribute:"solution", 
        value:
    "Upgrade the coturn packages.
    
    For the stable distribution (stretch), these problems have been fixed
    in version 4.5.0.5-1+deb9u1."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
      script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
      script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H");
      script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:coturn");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:9.0");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2019/02/05");
      script_set_attribute(attribute:"patch_publication_date", value:"2019/01/28");
      script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/29");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2019-2020 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:"9.0", prefix:"coturn", reference:"4.5.0.5-1+deb9u1")) 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 familyFreeBSD Local Security Checks
    NASL idFREEBSD_PKG_181BEEF6248211E9B4A300155D006B02.NASL
    descriptionMihaly Meszaros reports : We made 4.5.1.0 release public today that fixes many vulnerabilities. It fix the following vulnerabilities : - CVE-2018-4056 - CVE-2018-4058 - CVE-2018-4059 They will be exposed very soon..
    last seen2020-03-18
    modified2019-01-31
    plugin id121495
    published2019-01-31
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/121495
    titleFreeBSD : turnserver -- multiple vulnerabilities (181beef6-2482-11e9-b4a3-00155d006b02)
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DLA-1671.NASL
    descriptionMultiple vulnerabilities were discovered in coTURN, a TURN and STUN server for VoIP. CVE-2018-4056 A SQL injection vulnerability was discovered in the coTURN administrator web portal. As the administration web interface is shared with the production, it is unfortunately not possible to easily filter outside access and this security update completely disables the web interface. Users should use the local, command line interface instead. CVE-2018-4058 Default configuration enables unsafe loopback forwarding. A remote attacker with access to the TURN interface can use this vulnerability to gain access to services that should be local only. CVE-2018-4059 Default configuration uses an empty password for the local command line administration interface. An attacker with access to the local console (either a local attacker or a remote attacker taking advantage of CVE-2018-4058) could escalade privileges to administrator of the coTURN server. For Debian 8
    last seen2020-06-01
    modified2020-06-02
    plugin id122098
    published2019-02-12
    reporterThis script is Copyright (C) 2019-2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/122098
    titleDebian DLA-1671-1 : coturn security update

Talos

idTALOS-2018-0733
last seen2019-05-29
published2018-01-29
reporterTalos Intelligence
sourcehttp://www.talosintelligence.com/vulnerability_reports/TALOS-2018-0733
titlecoTURN server unsafe telnet admin portal default configuration vulnerability