Vulnerabilities > CVE-2002-0382 - Unspecified vulnerability in Xchat

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
xchat
nessus

Summary

XChat IRC client allows remote attackers to execute arbitrary commands via a /dns command on a host whose DNS reverse lookup contains shell metacharacters.

Nessus

  • NASL familyMandriva Local Security Checks
    NASL idMANDRAKE_MDKSA-2002-051.NASL
    descriptionIn versions of the xchat IRC client prior to version 1.8.9, xchat does not filter the response from an IRC server when a /dns query is executed. xchat resolves hostnames by passing the configured resolver and hostname to a shell, so an IRC server may return a malicious response formatted so that arbitrary commands are executed with the privilege of the user running xchat.
    last seen2020-06-01
    modified2020-06-02
    plugin id13954
    published2004-07-31
    reporterThis script is Copyright (C) 2004-2019 Tenable Network Security, Inc.
    sourcehttps://www.tenable.com/plugins/nessus/13954
    titleMandrake Linux Security Advisory : xchat (MDKSA-2002:051)
    code
    #%NASL_MIN_LEVEL 80502
    
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from Mandrake Linux Security Advisory MDKSA-2002:051. 
    # The text itself is copyright (C) Mandriva S.A.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(13954);
      script_version ("1.19");
      script_cvs_date("Date: 2019/08/02 13:32:46");
    
      script_cve_id("CVE-2002-0382");
      script_bugtraq_id(4376);
      script_xref(name:"MDKSA", value:"2002:051");
    
      script_name(english:"Mandrake Linux Security Advisory : xchat (MDKSA-2002:051)");
      script_summary(english:"Checks rpm output for the updated package");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Mandrake Linux host is missing a security update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "In versions of the xchat IRC client prior to version 1.8.9, xchat does
    not filter the response from an IRC server when a /dns query is
    executed. xchat resolves hostnames by passing the configured resolver
    and hostname to a shell, so an IRC server may return a malicious
    response formatted so that arbitrary commands are executed with the
    privilege of the user running xchat."
      );
      script_set_attribute(attribute:"solution", value:"Update the affected xchat package.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
      script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"false");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:mandriva:linux:xchat");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:7.1");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:7.2");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:8.0");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:8.1");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:mandrakesoft:mandrake_linux:8.2");
    
      script_set_attribute(attribute:"patch_publication_date", value:"2002/08/14");
      script_set_attribute(attribute:"plugin_publication_date", value:"2004/07/31");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2004-2019 Tenable Network Security, Inc.");
      script_family(english:"Mandriva Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/Mandrake/release", "Host/Mandrake/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);
    if (!get_kb_item("Host/Mandrake/release")) audit(AUDIT_OS_NOT, "Mandriva / Mandake Linux");
    if (!get_kb_item("Host/Mandrake/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    cpu = get_kb_item("Host/cpu");
    if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
    if (cpu !~ "^(amd64|i[3-6]86|x86_64)$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Mandriva / Mandrake Linux", cpu);
    
    
    flag = 0;
    if (rpm_check(release:"MDK7.1", cpu:"i386", reference:"xchat-1.8.9-1.2mdk", yank:"mdk")) flag++;
    
    if (rpm_check(release:"MDK7.2", cpu:"i386", reference:"xchat-1.8.9-1.2mdk", yank:"mdk")) flag++;
    
    if (rpm_check(release:"MDK8.0", cpu:"i386", reference:"xchat-1.8.9-1.1mdk", yank:"mdk")) flag++;
    
    if (rpm_check(release:"MDK8.1", cpu:"i386", reference:"xchat-1.8.9-1.1mdk", yank:"mdk")) flag++;
    
    if (rpm_check(release:"MDK8.2", cpu:"i386", reference:"xchat-1.8.9-1.1mdk", yank:"mdk")) flag++;
    
    
    if (flag)
    {
      if (report_verbosity > 0) security_hole(port:0, extra:rpm_report_get());
      else security_hole(0);
      exit(0);
    }
    else audit(AUDIT_HOST_NOT, "affected");
    
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2002-124.NASL
    descriptionA security issue in XChat allows a malicious server to execute arbitrary commands. XChat is a popular cross-platform IRC client. Versions of XChat prior to 1.8.9 do not filter the response from an IRC server when a /dns query is executed. Because XChat resolves hostnames by passing the configured resolver and hostname to a shell, an IRC server may return a maliciously formatted response that executes arbitrary commands with the privileges of the user running XChat. All users of XChat are advised to update to these errata packages containing XChat version 1.8.9 which is not vulnerable to this issue. [update 14 Aug 2002] Previous packages pushed were not signed, this update replaces the packages with signed versions
    last seen2020-06-01
    modified2020-06-02
    plugin id12303
    published2004-07-06
    reporterThis script is Copyright (C) 2004-2019 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/12303
    titleRHEL 2.1 : xchat (RHSA-2002:124)
    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-2002:124. The text 
    # itself is copyright (C) Red Hat, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(12303);
      script_version ("1.23");
      script_cvs_date("Date: 2019/10/25 13:36:09");
    
      script_cve_id("CVE-2002-0382");
      script_bugtraq_id(4376);
      script_xref(name:"RHSA", value:"2002:124");
    
      script_name(english:"RHEL 2.1 : xchat (RHSA-2002:124)");
      script_summary(english:"Checks the rpm output for the updated package");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Red Hat host is missing a security update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "A security issue in XChat allows a malicious server to execute
    arbitrary commands.
    
    XChat is a popular cross-platform IRC client.
    
    Versions of XChat prior to 1.8.9 do not filter the response from an
    IRC server when a /dns query is executed. Because XChat resolves
    hostnames by passing the configured resolver and hostname to a shell,
    an IRC server may return a maliciously formatted response that
    executes arbitrary commands with the privileges of the user running
    XChat.
    
    All users of XChat are advised to update to these errata packages
    containing XChat version 1.8.9 which is not vulnerable to this issue.
    
    [update 14 Aug 2002] Previous packages pushed were not signed, this
    update replaces the packages with signed versions"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/security/cve/cve-2002-0382"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://access.redhat.com/errata/RHSA-2002:124"
      );
      script_set_attribute(attribute:"solution", value:"Update the affected xchat package.");
      script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
      script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
      script_set_attribute(attribute:"exploit_available", value:"false");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:xchat");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:2.1");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2002/06/25");
      script_set_attribute(attribute:"patch_publication_date", value:"2002/08/14");
      script_set_attribute(attribute:"plugin_publication_date", value:"2004/07/06");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2004-2019 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"Red Hat Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/cpu");
    
      exit(0);
    }
    
    
    include("audit.inc");
    include("global_settings.inc");
    include("misc_func.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) || "Red Hat" >!< release) audit(AUDIT_OS_NOT, "Red Hat");
    os_ver = pregmatch(pattern: "Red Hat Enterprise Linux.*release ([0-9]+(\.[0-9]+)?)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Red Hat");
    os_ver = os_ver[1];
    if (! preg(pattern:"^2\.1([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Red Hat 2.1", "Red Hat " + 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$" && "s390" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Red Hat", cpu);
    if (cpu !~ "^i[3-6]86$") audit(AUDIT_ARCH_NOT, "i386", cpu);
    
    yum_updateinfo = get_kb_item("Host/RedHat/yum-updateinfo");
    if (!empty_or_null(yum_updateinfo)) 
    {
      rhsa = "RHSA-2002:124";
      yum_report = redhat_generate_yum_updateinfo_report(rhsa:rhsa);
      if (!empty_or_null(yum_report))
      {
        security_report_v4(
          port       : 0,
          severity   : SECURITY_HOLE,
          extra      : yum_report 
        );
        exit(0);
      }
      else
      {
        audit_message = "affected by Red Hat security advisory " + rhsa;
        audit(AUDIT_OS_NOT, audit_message);
      }
    }
    else
    {
      flag = 0;
      if (rpm_check(release:"RHEL2.1", cpu:"i386", reference:"xchat-1.8.9-1.21as.1")) flag++;
    
      if (flag)
      {
        security_report_v4(
          port       : 0,
          severity   : SECURITY_HOLE,
          extra      : rpm_report_get() + redhat_report_package_caveat()
        );
        exit(0);
      }
      else
      {
        tested = pkg_tests_get();
        if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
        else audit(AUDIT_PACKAGE_NOT_INSTALLED, "xchat");
      }
    }
    

Redhat

advisories
  • rhsa
    idRHSA-2002:097
  • rhsa
    idRHSA-2002:124