Vulnerabilities > CVE-2009-0180 - Permissions, Privileges, and Access Controls vulnerability in NFS Nfs-Utils

047910
CVSS 7.5 - HIGH
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
network
low complexity
nfs
redhat
CWE-264
nessus

Summary

Certain Fedora build scripts for nfs-utils before 1.1.2-9.fc9 on Fedora 9, and before 1.1.4-6.fc10 on Fedora 10, omit TCP Wrapper support, which might allow remote attackers to bypass intended access restrictions, possibly a related issue to CVE-2008-1376.

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Accessing, Modifying or Executing Executable Files
    An attack of this type exploits a system's configuration that allows an attacker to either directly access an executable file, for example through shell access; or in a possible worst case allows an attacker to upload a file and then execute it. Web servers, ftp servers, and message oriented middleware systems which have many integration points are particularly vulnerable, because both the programmers and the administrators must be in synch regarding the interfaces and the correct privileges for each interface.
  • Leverage Executable Code in Non-Executable Files
    An attack of this type exploits a system's trust in configuration and resource files, when the executable loads the resource (such as an image file or configuration file) the attacker has modified the file to either execute malicious code directly or manipulate the target process (e.g. application server) to execute based on the malicious configuration parameters. Since systems are increasingly interrelated mashing up resources from local and remote sources the possibility of this attack occurring is high. The attack can be directed at a client system, such as causing buffer overrun through loading seemingly benign image files, as in Microsoft Security Bulletin MS04-028 where specially crafted JPEG files could cause a buffer overrun once loaded into the browser. Another example targets clients reading pdf files. In this case the attacker simply appends javascript to the end of a legitimate url for a pdf (http://www.gnucitizen.org/blog/danger-danger-danger/) http://path/to/pdf/file.pdf#whatever_name_you_want=javascript:your_code_here The client assumes that they are reading a pdf, but the attacker has modified the resource and loaded executable javascript into the client's browser process. The attack can also target server processes. The attacker edits the resource or configuration file, for example a web.xml file used to configure security permissions for a J2EE app server, adding role name "public" grants all users with the public role the ability to use the administration functionality. The server trusts its configuration file to be correct, but when they are manipulated, the attacker gains full control.
  • Blue Boxing
    This type of attack against older telephone switches and trunks has been around for decades. A tone is sent by an adversary to impersonate a supervisor signal which has the effect of rerouting or usurping command of the line. While the US infrastructure proper may not contain widespread vulnerabilities to this type of attack, many companies are connected globally through call centers and business process outsourcing. These international systems may be operated in countries which have not upgraded Telco infrastructure and so are vulnerable to Blue boxing. Blue boxing is a result of failure on the part of the system to enforce strong authorization for administrative functions. While the infrastructure is different than standard current applications like web applications, there are historical lessons to be learned to upgrade the access control for administrative functions.
  • Restful Privilege Elevation
    Rest uses standard HTTP (Get, Put, Delete) style permissions methods, but these are not necessarily correlated generally with back end programs. Strict interpretation of HTTP get methods means that these HTTP Get services should not be used to delete information on the server, but there is no access control mechanism to back up this logic. This means that unless the services are properly ACL'd and the application's service implementation are following these guidelines then an HTTP request can easily execute a delete or update on the server side. The attacker identifies a HTTP Get URL such as http://victimsite/updateOrder, which calls out to a program to update orders on a database or other resource. The URL is not idempotent so the request can be submitted multiple times by the attacker, additionally, the attacker may be able to exploit the URL published as a Get method that actually performs updates (instead of merely retrieving data). This may result in malicious or inadvertent altering of data on the server.
  • Target Programs with Elevated Privileges
    This attack targets programs running with elevated privileges. The attacker would try to leverage a bug in the running program and get arbitrary code to execute with elevated privileges. For instance an attacker would look for programs that write to the system directories or registry keys (such as HKLM, which stores a number of critical Windows environment variables). These programs are typically running with elevated privileges and have usually not been designed with security in mind. Such programs are excellent exploit targets because they yield lots of power when they break. The malicious user try to execute its code at the same level as a privileged system call.

Nessus

  • NASL familyCentOS Local Security Checks
    NASL idCENTOS_RHSA-2009-0955.NASL
    descriptionAn updated nfs-utils package that fixes a security issue and multiple bugs is now available for Red Hat Enterprise Linux 4. This update has been rated as having moderate security impact by the Red Hat Security Response Team. The nfs-utils package provides a daemon for the kernel NFS server and related tools, which provides a much higher level of performance than the traditional Linux NFS server used by most users. A flaw was found in the nfs-utils package provided by RHBA-2008:0742. The nfs-utils package was missing TCP wrappers support, which could result in an administrator believing they had access restrictions enabled when they did not. (CVE-2008-1376) This update also includes the following bug fixes : * the
    last seen2020-06-01
    modified2020-06-02
    plugin id67064
    published2013-06-29
    reporterThis script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/67064
    titleCentOS 4 : nfs-utils (CESA-2009:0955)
    code
    #%NASL_MIN_LEVEL 80502
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from Red Hat Security Advisory RHSA-2009:0955 and 
    # CentOS Errata and Security Advisory 2009:0955 respectively.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(67064);
      script_version("1.6");
      script_cvs_date("Date: 2019/10/25 13:36:04");
    
      script_cve_id("CVE-2008-1376", "CVE-2009-0180");
      script_xref(name:"RHSA", value:"2009:0955");
    
      script_name(english:"CentOS 4 : nfs-utils (CESA-2009:0955)");
      script_summary(english:"Checks rpm output for the updated package");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote CentOS host is missing a security update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "An updated nfs-utils package that fixes a security issue and multiple
    bugs is now available for Red Hat Enterprise Linux 4.
    
    This update has been rated as having moderate security impact by the
    Red Hat Security Response Team.
    
    The nfs-utils package provides a daemon for the kernel NFS server and
    related tools, which provides a much higher level of performance than
    the traditional Linux NFS server used by most users.
    
    A flaw was found in the nfs-utils package provided by RHBA-2008:0742.
    The nfs-utils package was missing TCP wrappers support, which could
    result in an administrator believing they had access restrictions
    enabled when they did not. (CVE-2008-1376)
    
    This update also includes the following bug fixes :
    
    * the 'nfsstat' command now displays correct statistics. In previous
    versions, performing more than 2^31 RPC calls could cause the
    'nfsstat' command to incorrectly display the number of calls as
    'negative'. This was because 'nfsstat' printed statistics from
    /proc/net/rpc/* files as signed integers; with this version of
    nfs-utils, 'nfsstat' now reads and prints these statistics as unsigned
    integers. (BZ#404831)
    
    * imapd upcalls now support zero-length reads and perform extra bounds
    checking in gssd and svcgssd. This fixes a bug in previous versions
    that could cause the rpc.imapd daemon to hang when communicating with
    the kernel, which would halt any ID translation services. (BZ#448710)
    
    * tcp_wrappers supported in nfs-utils now allows proper application of
    hosts access rules defined in /etc/hosts.allow and /etc/hosts.deny.
    (BZ#494585)
    
    * the nfs init script did not check whether SECURE_NFS was set to
    'yes' before starting, stopping, or querying rpc.svcgssd. On systems
    where SECURE_NFS was not set to 'yes', the nfs init script could not
    start the rpc.svcgssd daemon at the 'service nfs start' command
    because the rpcsvcssd init script would check the status of SECURE_NFS
    before starting the daemon. However, at the 'service nfs stop' or
    'service nfs restart' commands, nfs init script would attempt to stop
    rpc.svcgssd and then report a failure because the daemon was not
    running in the first place. These error messages may have misled
    end-users into believing that there was a genuine problem with their
    NFS configuration. This version of nfs-utils contains a fix backported
    from Red Hat Enterprise Linux 5. nfs-utils now checks the status of
    SECURE_NFS before the nfs init script attempts to start, query or stop
    rpc.svcgssd and therefore, the irrelevant error messages seen
    previously will not appear. (BZ#470423)
    
    * the nfs init script is now fully compliant with Linux Standard Base
    Core specifications. This update fixes a bug that prevented
    '/etc/init.d/nfs start' from exiting properly if NFS was already
    running. (BZ#474570)
    
    * /var/lib/nfs/statd/sm is now created with the proper user and group
    whenever rpc.statd is called. In previous versions, some thread stack
    conditions could incorrectly prevent rpc.statd from creating the
    /var/lib/nfs/statd/sm file, which could cause 'service nfslock start'
    to fail. (BZ#479376)
    
    All users of nfs-utils should upgrade to this updated package, which
    resolves these issues."
      );
      # https://lists.centos.org/pipermail/centos-announce/2009-May/015885.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?63e12255"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Update the affected nfs-utils package."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
      script_cwe_id(264);
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:centos:centos:nfs-utils");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:centos:centos:4");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2008/08/01");
      script_set_attribute(attribute:"patch_publication_date", value:"2009/05/21");
      script_set_attribute(attribute:"plugin_publication_date", value:"2013/06/29");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2013-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"CentOS Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/CentOS/release", "Host/CentOS/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/CentOS/release");
    if (isnull(release) || "CentOS" >!< release) audit(AUDIT_OS_NOT, "CentOS");
    os_ver = pregmatch(pattern: "CentOS(?: Linux)? release ([0-9]+)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "CentOS");
    os_ver = os_ver[1];
    if (! preg(pattern:"^4([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "CentOS 4.x", "CentOS " + os_ver);
    
    if (!get_kb_item("Host/CentOS/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if ("x86_64" >!< cpu && "ia64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "CentOS", cpu);
    
    
    flag = 0;
    if (rpm_check(release:"CentOS-4", cpu:"ia64", reference:"nfs-utils-1.0.6-93.EL4")) flag++;
    
    
    if (flag)
    {
      security_report_v4(
        port       : 0,
        severity   : SECURITY_HOLE,
        extra      : rpm_report_get()
      );
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "nfs-utils");
    }
    
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2009-0266.NASL
    descriptionAdded warnings to tcp wrapper code when mounts are denied due to misconfigured DNS configurations. gssd: By default, don
    last seen2020-06-01
    modified2020-06-02
    plugin id35394
    published2009-01-16
    reporterThis script is Copyright (C) 2009-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/35394
    titleFedora 10 : nfs-utils-1.1.4-6.fc10 (2009-0266)
    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 2009-0266.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(35394);
      script_version ("1.12");
      script_cvs_date("Date: 2019/08/02 13:32:28");
    
      script_cve_id("CVE-2009-0180");
      script_xref(name:"FEDORA", value:"2009-0266");
    
      script_name(english:"Fedora 10 : nfs-utils-1.1.4-6.fc10 (2009-0266)");
      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:
    "Added warnings to tcp wrapper code when mounts are denied due to
    misconfigured DNS configurations. gssd: By default, don't spam syslog
    when users' credentials expire
    
    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=477864"
      );
      # https://lists.fedoraproject.org/pipermail/package-announce/2009-January/018817.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?5d10bd7a"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Update the affected nfs-utils package."
      );
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
      script_cwe_id(264);
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:nfs-utils");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:10");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2009/01/07");
      script_set_attribute(attribute:"plugin_publication_date", value:"2009/01/16");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2009-2019 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:"^10([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 10.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:"FC10", reference:"nfs-utils-1.1.4-6.fc10")) flag++;
    
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
      else security_hole(0);
      exit(0);
    }
    else
    {
      tested = pkg_tests_get();
      if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
      else audit(AUDIT_PACKAGE_NOT_INSTALLED, "nfs-utils");
    }
    
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2009-0955.NASL
    descriptionAn updated nfs-utils package that fixes a security issue and multiple bugs is now available for Red Hat Enterprise Linux 4. This update has been rated as having moderate security impact by the Red Hat Security Response Team. The nfs-utils package provides a daemon for the kernel NFS server and related tools, which provides a much higher level of performance than the traditional Linux NFS server used by most users. A flaw was found in the nfs-utils package provided by RHBA-2008:0742. The nfs-utils package was missing TCP wrappers support, which could result in an administrator believing they had access restrictions enabled when they did not. (CVE-2008-1376) This update also includes the following bug fixes : * the
    last seen2020-06-01
    modified2020-06-02
    plugin id38816
    published2009-05-19
    reporterThis script is Copyright (C) 2009-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/38816
    titleRHEL 4 : nfs-utils (RHSA-2009:0955)
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2009-0297.NASL
    description - Added warnings to tcp wrapper code when mounts are denied due to misconfigured DNS configurations. - gssd: By default, don
    last seen2020-06-01
    modified2020-06-02
    plugin id35396
    published2009-01-16
    reporterThis script is Copyright (C) 2009-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/35396
    titleFedora 9 : nfs-utils-1.1.2-9.fc9 (2009-0297)