Vulnerabilities > CVE-2008-5076 - Information Exposure vulnerability in Htop 0.7

047910
CVSS 4.6 - MEDIUM
Attack vector
LOCAL
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
PARTIAL
Integrity impact
PARTIAL
Availability impact
PARTIAL
local
low complexity
htop
CWE-200
nessus

Summary

htop 0.7 writes process names to a terminal without sanitizing non-printable characters, which might allow local users to hide processes, modify arbitrary files, or have unspecified other impact via a process name with "crazy control strings."

Vulnerable Configurations

Part Description Count
Application
Htop
1

Common Weakness Enumeration (CWE)

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Subverting Environment Variable Values
    The attacker directly or indirectly modifies environment variables used by or controlling the target software. The attacker's goal is to cause the target software to deviate from its expected operation in a manner that benefits the attacker.
  • Footprinting
    An attacker engages in probing and exploration activity to identify constituents and properties of the target. Footprinting is a general term to describe a variety of information gathering techniques, often used by attackers in preparation for some attack. It consists of using tools to learn as much as possible about the composition, configuration, and security mechanisms of the targeted application, system or network. Information that might be collected during a footprinting effort could include open ports, applications and their versions, network topology, and similar information. While footprinting is not intended to be damaging (although certain activities, such as network scans, can sometimes cause disruptions to vulnerable applications inadvertently) it may often pave the way for more damaging attacks.
  • Exploiting Trust in Client (aka Make the Client Invisible)
    An attack of this type exploits a programs' vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by placing themselves in the communication channel between client and server such that communication directly to the server is possible where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
  • Browser Fingerprinting
    An attacker carefully crafts small snippets of Java Script to efficiently detect the type of browser the potential victim is using. Many web-based attacks need prior knowledge of the web browser including the version of browser to ensure successful exploitation of a vulnerability. Having this knowledge allows an attacker to target the victim with attacks that specifically exploit known or zero day weaknesses in the type and version of the browser used by the victim. Automating this process via Java Script as a part of the same delivery system used to exploit the browser is considered more efficient as the attacker can supply a browser fingerprinting method and integrate it with exploit code, all contained in Java Script and in response to the same web page request by the browser.
  • Session Credential Falsification through Prediction
    This attack targets predictable session ID in order to gain privileges. The attacker can predict the session ID used during a transaction to perform spoofing and session hijacking.

Nessus

  • NASL familySuSE Local Security Checks
    NASL idSUSE_11_0_HTOP-081124.NASL
    descriptioninsufficient character filters in htop when displaying commands allowed programs that rewrite their program name to inject escape sequences (CVE-2008-5076).
    last seen2020-06-01
    modified2020-06-02
    plugin id39986
    published2009-07-21
    reporterThis script is Copyright (C) 2009-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/39986
    titleopenSUSE Security Update : htop (htop-332)
    code
    #%NASL_MIN_LEVEL 80502
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from openSUSE Security Update htop-332.
    #
    # The text description of this plugin is (C) SUSE LLC.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(39986);
      script_version("1.10");
      script_cvs_date("Date: 2019/10/25 13:36:31");
    
      script_cve_id("CVE-2008-5076");
    
      script_name(english:"openSUSE Security Update : htop (htop-332)");
      script_summary(english:"Check for the htop-332 patch");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote openSUSE host is missing a security update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "insufficient character filters in htop when displaying commands
    allowed programs that rewrite their program name to inject escape
    sequences (CVE-2008-5076)."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://bugzilla.novell.com/show_bug.cgi?id=440951"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected htop package.");
      script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");
      script_cwe_id(200);
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:novell:opensuse:htop");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:novell:opensuse:11.0");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2008/11/24");
      script_set_attribute(attribute:"plugin_publication_date", value:"2009/07/21");
      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:"SuSE Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/SuSE/release", "Host/SuSE/rpm-list", "Host/cpu");
    
      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/SuSE/release");
    if (isnull(release) || release =~ "^(SLED|SLES)") audit(AUDIT_OS_NOT, "openSUSE");
    if (release !~ "^(SUSE11\.0)$") audit(AUDIT_OS_RELEASE_NOT, "openSUSE", "11.0", release);
    if (!get_kb_item("Host/SuSE/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    ourarch = get_kb_item("Host/cpu");
    if (!ourarch) audit(AUDIT_UNKNOWN_ARCH);
    if (ourarch !~ "^(i586|i686|x86_64)$") audit(AUDIT_ARCH_NOT, "i586 / i686 / x86_64", ourarch);
    
    flag = 0;
    
    if ( rpm_check(release:"SUSE11.0", reference:"htop-0.7-32.2") ) 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, "htop");
    }
    
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2008-9728.NASL
    description - Tue Nov 18 2008 Rafa Psota <rafalzaq at gmail.com> - 0.8.1-2 - non-printable character filter patch (#504144) - Tue Oct 14 2008 Rafa Psota <rafalzaq at gmail.com> - 0.8.1-1 - update to 0.8.1 - Thu Jul 31 2008 Rafa Psota <rafalzaq at gmail.com> - 0.8-1 - udate to 0.8 - Sun Apr 27 2008 Rafa Psota <rafalzaq at gmail.com> - 0.7-2 - desktop file fix 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 id34829
    published2008-11-21
    reporterThis script is Copyright (C) 2008-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/34829
    titleFedora 9 : htop-0.8.1-2.fc9 (2008-9728)
    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 2008-9728.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(34829);
      script_version ("1.15");
      script_cvs_date("Date: 2019/08/02 13:32:28");
    
      script_cve_id("CVE-2008-5076");
      script_xref(name:"FEDORA", value:"2008-9728");
    
      script_name(english:"Fedora 9 : htop-0.8.1-2.fc9 (2008-9728)");
      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:
    "  - Tue Nov 18 2008 Rafa Psota <rafalzaq at gmail.com> -
        0.8.1-2
    
        - non-printable character filter patch (#504144)
    
        - Tue Oct 14 2008 Rafa Psota <rafalzaq at gmail.com> -
          0.8.1-1
    
        - update to 0.8.1
    
        - Thu Jul 31 2008 Rafa Psota <rafalzaq at gmail.com> -
          0.8-1
    
        - udate to 0.8
    
        - Sun Apr 27 2008 Rafa Psota <rafalzaq at gmail.com> -
          0.7-2
    
        - desktop file fix
    
    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=471952"
      );
      # https://lists.fedoraproject.org/pipermail/package-announce/2008-November/016338.html
      script_set_attribute(
        attribute:"see_also",
        value:"http://www.nessus.org/u?478d69db"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected htop package.");
      script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:P/I:P/A:P");
      script_cwe_id(200);
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:htop");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:9");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2008/11/19");
      script_set_attribute(attribute:"plugin_publication_date", value:"2008/11/21");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2008-2019 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:"^9([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 9.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:"FC9", reference:"htop-0.8.1-2.fc9")) 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, "htop");
    }
    
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2008-9791.NASL
    description - Tue Nov 18 2008 Rafa Psota <rafalzaq at gmail.com> - 0.8.1-2 - non-printable character filter patch (#504144) - Tue Oct 14 2008 Rafa Psota <rafalzaq at gmail.com> - 0.8.1-1 - update to 0.8.1 - Thu Jul 31 2008 Rafa Psota <rafalzaq at gmail.com> - 0.8-1 - udate to 0.8 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 id34835
    published2008-11-21
    reporterThis script is Copyright (C) 2008-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/34835
    titleFedora 8 : htop-0.8.1-2.fc8 (2008-9791)
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2008-9944.NASL
    description - Tue Nov 18 2008 Rafa Psota <rafalzaq at gmail.com> - 0.8.1-2 - non-printable character filter patch (#504144) 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 id36933
    published2009-04-23
    reporterThis script is Copyright (C) 2009-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/36933
    titleFedora 10 : htop-0.8.1-2.fc10 (2008-9944)
  • NASL familySuSE Local Security Checks
    NASL idSUSE_HTOP-5824.NASL
    descriptioninsufficient character filters in htop when displaying commands allowed programs that rewrite their program name to inject escape sequences (CVE-2008-5076).
    last seen2020-06-01
    modified2020-06-02
    plugin id34981
    published2008-12-01
    reporterThis script is Copyright (C) 2008-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/34981
    titleopenSUSE 10 Security Update : htop (htop-5824)