Vulnerabilities > CVE-2010-0292 - Resource Management Errors vulnerability in Tuxfamily Chrony

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

Summary

The read_from_cmd_socket function in cmdmon.c in chronyd in Chrony before 1.23.1, and 1.24-pre1, allows remote attackers to cause a denial of service (CPU and bandwidth consumption) by sending a spoofed cmdmon packet that triggers a continuous exchange of NOHOSTACCESS messages between two daemons, a related issue to CVE-2009-3563.

Common Weakness Enumeration (CWE)

Nessus

  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2010-1536.NASL
    descriptionThis update fixes several vulnerabilities that can be exploited for a remote denial of service. 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 id47260
    published2010-07-01
    reporterThis script is Copyright (C) 2010-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/47260
    titleFedora 11 : chrony-1.23-6.20081106gitbe42b4.fc11 (2010-1536)
    code
    #%NASL_MIN_LEVEL 80502
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from Fedora Security Advisory 2010-1536.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(47260);
      script_version("1.12");
      script_cvs_date("Date: 2019/08/02 13:32:31");
    
      script_cve_id("CVE-2010-0292", "CVE-2010-0293", "CVE-2010-0294");
      script_xref(name:"FEDORA", value:"2010-1536");
    
      script_name(english:"Fedora 11 : chrony-1.23-6.20081106gitbe42b4.fc11 (2010-1536)");
      script_summary(english:"Checks rpm output for the updated package.");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Fedora host is missing a security update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "This update fixes several vulnerabilities that can be exploited for a
    remote denial of service.
    
    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."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.redhat.com/show_bug.cgi?id=555367"
      );
      # https://lists.fedoraproject.org/pipermail/package-announce/2010-February/034877.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?c0cff2bd"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Update the affected chrony package."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P");
      script_cwe_id(20, 399);
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:chrony");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:11");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2010/02/05");
      script_set_attribute(attribute:"plugin_publication_date", value:"2010/07/01");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2010-2019 Tenable Network Security, Inc.");
      script_family(english:"Fedora Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("rpm.inc");
    
    if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
    release = get_kb_item("Host/RedHat/release");
    if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
    os_ver = eregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
    os_ver = os_ver[1];
    if (! ereg(pattern:"^11([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 11.x", "Fedora " + os_ver);
    
    if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);
    
    flag = 0;
    if (rpm_check(release:"FC11", reference:"chrony-1.23-6.20081106gitbe42b4.fc11")) flag++;
    
    
    if (flag)
    {
      if (report_verbosity > 0) security_warning(port:0, extra:rpm_report_get());
      else security_warning(0);
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "chrony");
    }
    
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DSA-1992.NASL
    descriptionSeveral vulnerabilities have been discovered in chrony, a pair of programs which are used to maintain the accuracy of the system clock on a computer. This issues are similar to the NTP security flaw CVE-2009-3563. The Common Vulnerabilities and Exposures project identifies the following problems : - CVE-2010-0292 chronyd replies to all cmdmon packets with NOHOSTACCESS messages even for unauthorized hosts. An attacker can abuse this behaviour to force two chronyd instances to play packet ping-pong by sending such a packet with spoofed source address and port. This results in high CPU and network usage and thus denial of service conditions. - CVE-2010-0293 The client logging facility of chronyd doesn
    last seen2020-06-01
    modified2020-06-02
    plugin id44856
    published2010-02-24
    reporterThis script is Copyright (C) 2010-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/44856
    titleDebian DSA-1992-1 : chrony - several vulnerabilities
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2010-1539.NASL
    descriptionThis update fixes several vulnerabilities that can be exploited for a remote denial of service. 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 id47261
    published2010-07-01
    reporterThis script is Copyright (C) 2010-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/47261
    titleFedora 12 : chrony-1.23-8.20081106gitbe42b4.fc12 (2010-1539)