Vulnerabilities > CVE-2020-10188 - Classic Buffer Overflow vulnerability in multiple products

047910
CVSS 9.8 - CRITICAL
Attack vector
NETWORK
Attack complexity
LOW
Privileges required
NONE
Confidentiality impact
HIGH
Integrity impact
HIGH
Availability impact
HIGH

Summary

utility.c in telnetd in netkit telnet through 0.17 allows remote attackers to execute arbitrary code via short writes or urgent data, because of a buffer overflow involving the netclear and nextitem functions.

Vulnerable Configurations

Part Description Count
Application
Netkit_Telnet_Project
1
Application
Oracle
1
OS
Fedoraproject
3
OS
Debian
2
OS
Arista
72
OS
Juniper
349

Common Attack Pattern Enumeration and Classification (CAPEC)

  • Buffer Overflow via Environment Variables
    This attack pattern involves causing a buffer overflow through manipulation of environment variables. Once the attacker finds that they can modify an environment variable, they may try to overflow associated buffers. This attack leverages implicit trust often placed in environment variables.
  • Overflow Buffers
    Buffer Overflow attacks target improper or missing bounds checking on buffer operations, typically triggered by input injected by an attacker. As a consequence, an attacker is able to write past the boundaries of allocated buffer regions in memory, causing a program crash or potentially redirection of execution as per the attackers' choice.
  • Client-side Injection-induced Buffer Overflow
    This type of attack exploits a buffer overflow vulnerability in targeted client software through injection of malicious content from a custom-built hostile service.
  • Filter Failure through Buffer Overflow
    In this attack, the idea is to cause an active filter to fail by causing an oversized transaction. An attacker may try to feed overly long input strings to the program in an attempt to overwhelm the filter (by causing a buffer overflow) and hoping that the filter does not fail securely (i.e. the user input is let into the system unfiltered).
  • MIME Conversion
    An attacker exploits a weakness in the MIME conversion routine to cause a buffer overflow and gain control over the mail server machine. The MIME system is designed to allow various different information formats to be interpreted and sent via e-mail. Attack points exist when data are converted to MIME compatible format and back.

Nessus

  • NASL familyOracle Linux Local Security Checks
    NASL idORACLELINUX_ELSA-2020-1334.NASL
    descriptionFrom Red Hat Security Advisory 2020:1334 : The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:1334 advisory. - telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code (CVE-2020-10188) Note that Nessus has not tested for this issue but has instead relied only on the application
    last seen2020-06-06
    modified2020-04-14
    plugin id135429
    published2020-04-14
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/135429
    titleOracle Linux 7 : telnet (ELSA-2020-1334)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Red Hat Security Advisory RHSA-2020:1334 and 
    # Oracle Linux Security Advisory ELSA-2020-1334 respectively.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(135429);
      script_version("1.4");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/07/10");
    
      script_cve_id("CVE-2020-10188");
      script_xref(name:"RHSA", value:"2020:1334");
      script_xref(name:"IAVA", value:"2020-A-0293");
    
      script_name(english:"Oracle Linux 7 : telnet (ELSA-2020-1334)");
      script_summary(english:"Checks rpm output for the updated packages");
    
      script_set_attribute(
        attribute:"synopsis",
        value:"The remote Oracle Linux host is missing one or more security updates."
      );
      script_set_attribute(
        attribute:"description",
        value:
    "From Red Hat Security Advisory 2020:1334 :
    
    The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in
    the RHSA-2020:1334 advisory.
    
      - telnet-server: no bounds checks in nextitem() function
        allows to remotely execute arbitrary code
        (CVE-2020-10188)
    
    Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
    number."
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://oss.oracle.com/pipermail/el-errata/2020-April/009802.html"
      );
      script_set_attribute(
        attribute:"solution",
        value:"Update the affected telnet packages."
      );
      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:oracle:linux:telnet");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:telnet-server");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:7");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2020/03/06");
      script_set_attribute(attribute:"patch_publication_date", value:"2020/04/10");
      script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/14");
      script_set_attribute(attribute:"stig_severity", value:"I");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"Oracle Linux Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/OracleLinux", "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);
    if (!get_kb_item("Host/OracleLinux")) audit(AUDIT_OS_NOT, "Oracle Linux");
    release = get_kb_item("Host/RedHat/release");
    if (isnull(release) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:release)) audit(AUDIT_OS_NOT, "Oracle Linux");
    os_ver = pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux) .*release ([0-9]+(\.[0-9]+)?)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Oracle Linux");
    os_ver = os_ver[1];
    if (! preg(pattern:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Oracle Linux 7", "Oracle Linux " + 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, "Oracle Linux", cpu);
    if ("x86_64" >!< cpu) audit(AUDIT_ARCH_NOT, "x86_64", cpu);
    
    flag = 0;
    if (rpm_check(release:"EL7", cpu:"x86_64", reference:"telnet-0.17-65.el7_8")) flag++;
    if (rpm_check(release:"EL7", cpu:"x86_64", reference:"telnet-server-0.17-65.el7_8")) 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, "telnet / telnet-server");
    }
    
  • NASL familyDebian Local Security Checks
    NASL idDEBIAN_DLA-2176.NASL
    descriptionNOTE: This DLA was intially sent on 2020-04-14 but for reasons unknown failed to reach the mailing list. It is being re-sent now to ensure that it appears in the mailing list archive. No new version of inetutils has been published since version 2:1.9.2.39.3a460-3+deb8u1 described in the original advisory. A vulnerability was discovered in the telnetd component of inetutils, a collection of network utilities. Execution of arbitrary remote code was possible through short writes or urgent data. For Debian 8
    last seen2020-05-21
    modified2020-05-15
    plugin id136630
    published2020-05-15
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/136630
    titleDebian DLA-2176-1 : inetutils security update
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Debian Security Advisory DLA-2176-1. The text
    # itself is copyright (C) Software in the Public Interest, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(136630);
      script_version("1.3");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/07/10");
    
      script_cve_id("CVE-2020-10188");
      script_xref(name:"IAVA", value:"2020-A-0293");
    
      script_name(english:"Debian DLA-2176-1 : inetutils security update");
      script_summary(english:"Checks dpkg output for the updated packages.");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Debian host is missing a security update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "NOTE: This DLA was intially sent on 2020-04-14 but for reasons unknown
    failed to reach the mailing list. It is being re-sent now to ensure
    that it appears in the mailing list archive. No new version of
    inetutils has been published since version 2:1.9.2.39.3a460-3+deb8u1
    described in the original advisory.
    
    A vulnerability was discovered in the telnetd component of inetutils,
    a collection of network utilities. Execution of arbitrary remote code
    was possible through short writes or urgent data.
    
    For Debian 8 'Jessie', this problem has been fixed in version
    2:1.9.2.39.3a460-3+deb8u1.
    
    We recommend that you upgrade your inetutils packages.
    
    NOTE: Tenable Network Security has extracted the preceding description
    block directly from the DLA 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://lists.debian.org/debian-lts-announce/2020/05/msg00012.html"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://packages.debian.org/source/jessie/inetutils"
      );
      script_set_attribute(attribute:"solution", value:"Upgrade the affected packages.");
      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:inetutils-ftp");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-ftpd");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-inetd");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-ping");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-syslogd");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-talk");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-talkd");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-telnet");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-telnetd");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-tools");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:debian:debian_linux:inetutils-traceroute");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:debian:debian_linux:8.0");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2020/03/06");
      script_set_attribute(attribute:"patch_publication_date", value:"2020/05/14");
      script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/15");
      script_set_attribute(attribute:"stig_severity", value:"I");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 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:"8.0", prefix:"inetutils-ftp", reference:"2:1.9.2.39.3a460-3+deb8u1")) flag++;
    if (deb_check(release:"8.0", prefix:"inetutils-ftpd", reference:"2:1.9.2.39.3a460-3+deb8u1")) flag++;
    if (deb_check(release:"8.0", prefix:"inetutils-inetd", reference:"2:1.9.2.39.3a460-3+deb8u1")) flag++;
    if (deb_check(release:"8.0", prefix:"inetutils-ping", reference:"2:1.9.2.39.3a460-3+deb8u1")) flag++;
    if (deb_check(release:"8.0", prefix:"inetutils-syslogd", reference:"2:1.9.2.39.3a460-3+deb8u1")) flag++;
    if (deb_check(release:"8.0", prefix:"inetutils-talk", reference:"2:1.9.2.39.3a460-3+deb8u1")) flag++;
    if (deb_check(release:"8.0", prefix:"inetutils-talkd", reference:"2:1.9.2.39.3a460-3+deb8u1")) flag++;
    if (deb_check(release:"8.0", prefix:"inetutils-telnet", reference:"2:1.9.2.39.3a460-3+deb8u1")) flag++;
    if (deb_check(release:"8.0", prefix:"inetutils-telnetd", reference:"2:1.9.2.39.3a460-3+deb8u1")) flag++;
    if (deb_check(release:"8.0", prefix:"inetutils-tools", reference:"2:1.9.2.39.3a460-3+deb8u1")) flag++;
    if (deb_check(release:"8.0", prefix:"inetutils-traceroute", reference:"2:1.9.2.39.3a460-3+deb8u1")) 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 familyAmazon Linux Local Security Checks
    NASL idAL2_ALAS-2020-1422.NASL
    descriptionutility.c in telnetd in netkit telnet through 0.17 allows remote attackers to execute arbitrary code via short writes or urgent data, because of a buffer overflow involving the netclear and nextitem functions. (CVE-2020-10188)
    last seen2020-05-12
    modified2020-05-07
    plugin id136365
    published2020-05-07
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/136365
    titleAmazon Linux 2 : telnet (ALAS-2020-1422)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were
    # extracted from Amazon Linux 2 Security Advisory ALAS-2020-1422.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(136365);
      script_version("1.3");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/07/10");
    
      script_cve_id("CVE-2020-10188");
      script_xref(name:"ALAS", value:"2020-1422");
      script_xref(name:"IAVA", value:"2020-A-0293");
    
      script_name(english:"Amazon Linux 2 : telnet (ALAS-2020-1422)");
      script_summary(english:"Checks rpm output for the updated packages");
    
      script_set_attribute(
        attribute:"synopsis", 
        value:"The remote Amazon Linux 2 host is missing a security update."
      );
      script_set_attribute(
        attribute:"description", 
        value:
    "utility.c in telnetd in netkit telnet through 0.17 allows remote
    attackers to execute arbitrary code via short writes or urgent data,
    because of a buffer overflow involving the netclear and nextitem
    functions. (CVE-2020-10188)"
      );
      script_set_attribute(
        attribute:"see_also",
        value:"https://alas.aws.amazon.com/AL2/ALAS-2020-1422.html"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Run 'yum update telnet' to update your system."
      );
      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:amazon:linux:telnet");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:telnet-debuginfo");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:telnet-server");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2020/03/06");
      script_set_attribute(attribute:"patch_publication_date", value:"2020/05/06");
      script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/07");
      script_set_attribute(attribute:"stig_severity", value:"I");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
      script_family(english:"Amazon Linux Local Security Checks");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/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/AmazonLinux/release");
    if (isnull(release) || !strlen(release)) audit(AUDIT_OS_NOT, "Amazon Linux");
    os_ver = pregmatch(pattern: "^AL(A|\d)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
    os_ver = os_ver[1];
    if (os_ver != "2")
    {
      if (os_ver == 'A') os_ver = 'AMI';
      audit(AUDIT_OS_NOT, "Amazon Linux 2", "Amazon Linux " + os_ver);
    }
    
    if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
    
    
    flag = 0;
    if (rpm_check(release:"AL2", reference:"telnet-0.17-65.amzn2")) flag++;
    if (rpm_check(release:"AL2", reference:"telnet-debuginfo-0.17-65.amzn2")) flag++;
    if (rpm_check(release:"AL2", reference:"telnet-server-0.17-65.amzn2")) 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, "telnet / telnet-debuginfo / telnet-server");
    }
    
  • NASL familyHuawei Local Security Checks
    NASL idEULEROS_SA-2020-1577.NASL
    descriptionAccording to the version of the telnet packages installed, the EulerOS installation on the remote host is affected by the following vulnerability : - The proglottis Go wrapper before 0.1.1 for the GPGME library has a use-after-free, as demonstrated by use for container image pulls by Docker or CRI-O. This leads to a crash or potential code execution during GPG signature verification.(CVE-2020-10188) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-05-31
    modified2020-05-26
    plugin id136855
    published2020-05-26
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/136855
    titleEulerOS 2.0 SP8 : telnet (EulerOS-SA-2020-1577)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(136855);
      script_version("1.3");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/07/10");
    
      script_cve_id(
        "CVE-2020-10188"
      );
      script_xref(name:"IAVA", value:"2020-A-0293");
    
      script_name(english:"EulerOS 2.0 SP8 : telnet (EulerOS-SA-2020-1577)");
      script_summary(english:"Checks the rpm output for the updated package.");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote EulerOS host is missing a security update.");
      script_set_attribute(attribute:"description", value:
    "According to the version of the telnet packages installed, the
    EulerOS installation on the remote host is affected by the following
    vulnerability :
    
      - The proglottis Go wrapper before 0.1.1 for the GPGME
        library has a use-after-free, as demonstrated by use
        for container image pulls by Docker or CRI-O. This
        leads to a crash or potential code execution during GPG
        signature verification.(CVE-2020-10188)
    
    Note that Tenable Network Security has extracted the preceding
    description block directly from the EulerOS security advisory. Tenable
    has attempted to automatically clean and format it as much as possible
    without introducing additional issues.");
      # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2020-1577
      script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?bc1a51d3");
      script_set_attribute(attribute:"solution", value:
    "Update the affected telnet package.");
      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:"patch_publication_date", value:"2020/05/26");
      script_set_attribute(attribute:"plugin_publication_date", value:"2020/05/26");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:telnet");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:telnet-server");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
      script_set_attribute(attribute:"stig_severity", value:"I");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"Huawei Local Security Checks");
    
      script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      script_dependencies("ssh_get_info.nasl");
      script_require_keys("Host/local_checks_enabled", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
      script_exclude_keys("Host/EulerOS/uvp_version");
    
      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/EulerOS/release");
    if (isnull(release) || release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
    if (release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0");
    
    sp = get_kb_item("Host/EulerOS/sp");
    if (isnull(sp) || sp !~ "^(8)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8");
    
    uvp = get_kb_item("Host/EulerOS/uvp_version");
    if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP8", "EulerOS UVP " + uvp);
    
    if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
    if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);
    
    flag = 0;
    
    pkgs = ["telnet-0.17-74.h1.eulerosv2r8",
            "telnet-server-0.17-74.h1.eulerosv2r8"];
    
    foreach (pkg in pkgs)
      if (rpm_check(release:"EulerOS-2.0", sp:"8", reference:pkg)) 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, "telnet");
    }
    
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2020-E7B942A47A.NASL
    descriptionSecurity fix for CVE-2020-10188 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-04-10
    modified2020-04-06
    plugin id135215
    published2020-04-06
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/135215
    titleFedora 31 : 1:telnet (2020-e7b942a47a)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    # The descriptive text and package checks in this plugin were  
    # extracted from Fedora Security Advisory FEDORA-2020-e7b942a47a.
    #
    
    include("compat.inc");
    
    if (description)
    {
      script_id(135215);
      script_version("1.3");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/07/10");
    
      script_cve_id("CVE-2020-10188");
      script_xref(name:"FEDORA", value:"2020-e7b942a47a");
      script_xref(name:"IAVA", value:"2020-A-0293");
    
      script_name(english:"Fedora 31 : 1:telnet (2020-e7b942a47a)");
      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:
    "Security fix for CVE-2020-10188
    
    Note that Tenable Network Security has extracted the preceding
    description block directly from the Fedora update system website.
    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://bodhi.fedoraproject.org/updates/FEDORA-2020-e7b942a47a"
      );
      script_set_attribute(
        attribute:"solution", 
        value:"Update the affected 1:telnet package."
      );
      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:fedoraproject:fedora:1:telnet");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:31");
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2020/03/06");
      script_set_attribute(attribute:"patch_publication_date", value:"2020/04/04");
      script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/06");
      script_set_attribute(attribute:"stig_severity", value:"I");
      script_set_attribute(attribute:"generated_plugin", value:"current");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
      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 = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
    if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
    os_ver = os_ver[1];
    if (! preg(pattern:"^31([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 31", "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:"FC31", reference:"telnet-0.17-78.fc31", epoch:"1")) 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, "1:telnet");
    }
    
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2020-1334.NASL
    descriptionThe remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:1334 advisory. - telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code (CVE-2020-10188) Note that Nessus has not tested for this issue but has instead relied only on the application
    last seen2020-04-23
    modified2020-04-06
    plugin id135233
    published2020-04-06
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/135233
    titleRHEL 7 : telnet (RHSA-2020:1334)
    code
    #
    # (C) Tenable Network Security, Inc.
    #
    
    # The descriptive text and package checks in this plugin were
    # extracted from Red Hat Security Advisory RHSA-2020:1334. The text
    # itself is copyright (C) Red Hat, Inc.
    #
    
    
    include('compat.inc');
    
    if (description)
    {
      script_id(135233);
      script_version("1.4");
      script_set_attribute(attribute:"plugin_modification_date", value:"2020/07/10");
    
      script_cve_id("CVE-2020-10188");
      script_xref(name:"RHSA", value:"2020:1334");
      script_xref(name:"IAVA", value:"2020-A-0293");
    
      script_name(english:"RHEL 7 : telnet (RHSA-2020:1334)");
      script_summary(english:"Checks the rpm output for the updated packages");
    
      script_set_attribute(attribute:"synopsis", value:
    "The remote Red Hat host is missing a security update.");
      script_set_attribute(attribute:"description", value:
    "The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in
    the RHSA-2020:1334 advisory.
    
      - telnet-server: no bounds checks in nextitem() function
        allows to remotely execute arbitrary code
        (CVE-2020-10188)
    
    Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
    number.");
      script_set_attribute(attribute:"see_also", value:"https://cwe.mitre.org/data/definitions/119.html");
      script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/errata/RHSA-2020:1334");
      script_set_attribute(attribute:"see_also", value:"https://access.redhat.com/security/cve/CVE-2020-10188");
      script_set_attribute(attribute:"solution", value:
    "Update the affected telnet-server packages.");
      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:"cvss_score_source", value:"CVE-2020-10188");
    
      script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
      script_cwe_id(119);
    
      script_set_attribute(attribute:"vuln_publication_date", value:"2020/03/06");
      script_set_attribute(attribute:"patch_publication_date", value:"2020/04/06");
      script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/06");
    
      script_set_attribute(attribute:"plugin_type", value:"local");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7::client");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7::computenode");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7::server");
      script_set_attribute(attribute:"cpe", value:"cpe:/o:redhat:enterprise_linux:7::workstation");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:telnet");
      script_set_attribute(attribute:"cpe", value:"p-cpe:/a:redhat:enterprise_linux:telnet-server");
      script_set_attribute(attribute:"stig_severity", value:"I");
      script_end_attributes();
    
      script_category(ACT_GATHER_INFO);
      script_family(english:"Red Hat Local Security Checks");
    
      script_copyright(english:"This script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.");
    
      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:"^7([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, 'Red Hat 7.x', '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 && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Red Hat', cpu);
    
    pkgs = [
        {'reference':'telnet-server-0.17-65.el7_8', 'cpu':'s390x', 'release':'7', 'epoch':'1'},
        {'reference':'telnet-server-0.17-65.el7_8', 'cpu':'x86_64', 'release':'7', 'epoch':'1'}
    ];
    
    flag = 0;
    foreach package_array ( pkgs ) {
      reference = NULL;
      release = NULL;
      sp = NULL;
      cpu = NULL;
      el_string = NULL;
      rpm_spec_vers_cmp = NULL;
      epoch = NULL;
      if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
      if (!empty_or_null(package_array['release'])) release = 'RHEL' + package_array['release'];
      if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
      if (!empty_or_null(package_array['cpu'])) cpu = package_array['cpu'];
      if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
      if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
      if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
      if (reference && release) {
        if (rpm_spec_vers_cmp) {
          if (rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:TRUE)) flag++;
        }
        else
        {
          if (rpm_check(release:release, sp:sp, cpu:cpu, reference:reference, epoch:epoch)) 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, 'telnet-server');
    }
    
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2020-1349.NASL
    descriptionThe remote Redhat Enterprise Linux 6 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:1349 advisory. - telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code (CVE-2020-10188) Note that Nessus has not tested for this issue but has instead relied only on the application
    last seen2020-04-23
    modified2020-04-07
    plugin id135239
    published2020-04-07
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/135239
    titleRHEL 6 : krb5-appl (RHSA-2020:1349)
  • NASL familyHuawei Local Security Checks
    NASL idEULEROS_SA-2020-1617.NASL
    descriptionAccording to the version of the telnet packages installed, the EulerOS installation on the remote host is affected by the following vulnerability : - utility.c in telnetd in netkit telnet through 0.17 allows remote attackers to execute arbitrary code via short writes or urgent data, because of a buffer overflow involving the netclear and nextitem functions.(CVE-2020-10188) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-06-06
    modified2020-06-02
    plugin id137035
    published2020-06-02
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/137035
    titleEulerOS 2.0 SP5 : telnet (EulerOS-SA-2020-1617)
  • NASL familyHuawei Local Security Checks
    NASL idEULEROS_SA-2020-1541.NASL
    descriptionAccording to the version of the telnet package installed, the EulerOS Virtualization for ARM 64 installation on the remote host is affected by the following vulnerability : - The proglottis Go wrapper before 0.1.1 for the GPGME library has a use-after-free, as demonstrated by use for container image pulls by Docker or CRI-O. This leads to a crash or potential code execution during GPG signature verification.(CVE-2020-10188) Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-05-08
    modified2020-05-01
    plugin id136244
    published2020-05-01
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/136244
    titleEulerOS Virtualization for ARM 64 3.0.2.0 : telnet (EulerOS-SA-2020-1541)
  • NASL familyScientific Linux Local Security Checks
    NASL idSL_20200406_TELNET_ON_SL6_X.NASL
    descriptionSecurity Fix(es) : - telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code (CVE-2020-10188)
    last seen2020-04-12
    modified2020-04-07
    plugin id135262
    published2020-04-07
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/135262
    titleScientific Linux Security Update : telnet on SL6.x i386/x86_64 (20200406)
  • NASL familyOracle Linux Local Security Checks
    NASL idORACLELINUX_ELSA-2020-1349.NASL
    descriptionFrom Red Hat Security Advisory 2020:1349 : The remote Redhat Enterprise Linux 6 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:1349 advisory. - telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code (CVE-2020-10188) Note that Nessus has not tested for this issue but has instead relied only on the application
    last seen2020-06-06
    modified2020-04-15
    plugin id135573
    published2020-04-15
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/135573
    titleOracle Linux 6 : krb5-appl (ELSA-2020-1349)
  • NASL familyScientific Linux Local Security Checks
    NASL idSL_20200407_KRB5_APPL_ON_SL6_X.NASL
    descriptionSecurity Fix(es) : - telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code (CVE-2020-10188)
    last seen2020-04-16
    modified2020-04-08
    plugin id135279
    published2020-04-08
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/135279
    titleScientific Linux Security Update : krb5-appl on SL6.x i386/x86_64 (20200407)
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2020-1318.NASL
    descriptionThe remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:1318 advisory. - telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code (CVE-2020-10188) Note that Nessus has not tested for this issue but has instead relied only on the application
    last seen2020-04-23
    modified2020-04-07
    plugin id135257
    published2020-04-07
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/135257
    titleRHEL 8 : telnet (RHSA-2020:1318)
  • NASL familyCentOS Local Security Checks
    NASL idCENTOS_RHSA-2020-1349.NASL
    descriptionThe remote Redhat Enterprise Linux 6 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:1349 advisory. - telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code (CVE-2020-10188) Note that Nessus has not tested for this issue but has instead relied only on the application
    last seen2020-06-06
    modified2020-04-10
    plugin id135362
    published2020-04-10
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/135362
    titleCentOS 6 : krb5-appl (CESA-2020:1349)
  • NASL familyFedora Local Security Checks
    NASL idFEDORA_2020-6B07FF2526.NASL
    descriptionSecurity fix for CVE-2020-10188 Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
    last seen2020-04-09
    modified2020-04-06
    plugin id135210
    published2020-04-06
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/135210
    titleFedora 30 : 1:telnet (2020-6b07ff2526)
  • NASL familyMisc.
    NASL idTELNETD_CVE-2020-10188_DIRECT.NASL
    descriptionA buffer overflow condition exists in telnetd due to incorrect bounds checks in the services handling of short writes and urgent data. An unauthenticated, remote attacker can exploit this, via specially crafted telnet packets, to execute arbitrary code on the remote server.
    last seen2020-06-05
    modified2020-05-26
    plugin id136890
    published2020-05-26
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/136890
    titleTelnetd - Remote Code Execution (CVE-2020-10188)
  • NASL familyOracle Linux Local Security Checks
    NASL idORACLELINUX_ELSA-2020-1318.NASL
    descriptionFrom Red Hat Security Advisory 2020:1318 : The remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:1318 advisory. - telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code (CVE-2020-10188) Note that Nessus has not tested for this issue but has instead relied only on the application
    last seen2020-06-06
    modified2020-04-10
    plugin id135374
    published2020-04-10
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/135374
    titleOracle Linux 8 : telnet (ELSA-2020-1318)
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2020-1335.NASL
    descriptionThe remote Redhat Enterprise Linux 6 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:1335 advisory. - telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code (CVE-2020-10188) Note that Nessus has not tested for this issue but has instead relied only on the application
    last seen2020-04-23
    modified2020-04-06
    plugin id135231
    published2020-04-06
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/135231
    titleRHEL 6 : telnet (RHSA-2020:1335)
  • NASL familyScientific Linux Local Security Checks
    NASL idSL_20200407_TELNET_ON_SL7_X.NASL
    descriptiontelnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code
    last seen2020-04-30
    modified2020-04-21
    plugin id135839
    published2020-04-21
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/135839
    titleScientific Linux Security Update : telnet on SL7.x x86_64 (20200407)
  • NASL familyRed Hat Local Security Checks
    NASL idREDHAT-RHSA-2020-1342.NASL
    descriptionThe remote Redhat Enterprise Linux 8 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:1342 advisory. - telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code (CVE-2020-10188) Note that Nessus has not tested for this issue but has instead relied only on the application
    last seen2020-04-23
    modified2020-04-07
    plugin id135244
    published2020-04-07
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/135244
    titleRHEL 8 : telnet (RHSA-2020:1342)
  • NASL familyOracle Linux Local Security Checks
    NASL idORACLELINUX_ELSA-2020-1335.NASL
    descriptionFrom Red Hat Security Advisory 2020:1335 : The remote Redhat Enterprise Linux 6 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:1335 advisory. - telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code (CVE-2020-10188) Note that Nessus has not tested for this issue but has instead relied only on the application
    last seen2020-06-06
    modified2020-04-10
    plugin id135376
    published2020-04-10
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/135376
    titleOracle Linux 6 : telnet (ELSA-2020-1335)
  • NASL familyCentOS Local Security Checks
    NASL idCENTOS_RHSA-2020-1335.NASL
    descriptionThe remote Redhat Enterprise Linux 6 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2020:1335 advisory. - telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code (CVE-2020-10188) Note that Nessus has not tested for this issue but has instead relied only on the application
    last seen2020-06-06
    modified2020-04-10
    plugin id135360
    published2020-04-10
    reporterThis script is Copyright (C) 2020 and is owned by Tenable, Inc. or an Affiliate thereof.
    sourcehttps://www.tenable.com/plugins/nessus/135360
    titleCentOS 6 : telnet (CESA-2020:1335)

Redhat

advisories
  • bugzilla
    id1811673
    titleCVE-2020-10188 telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code
    oval
    OR
    • commentRed Hat Enterprise Linux must be installed
      ovaloval:com.redhat.rhba:tst:20070304026
    • AND
      • commentRed Hat Enterprise Linux 8 is installed
        ovaloval:com.redhat.rhba:tst:20193384074
      • OR
        • AND
          • commenttelnet-debugsource is earlier than 1:0.17-73.el8_1.1
            ovaloval:com.redhat.rhsa:tst:20201318001
          • commenttelnet-debugsource is signed with Red Hat redhatrelease2 key
            ovaloval:com.redhat.rhsa:tst:20201318002
        • AND
          • commenttelnet-server is earlier than 1:0.17-73.el8_1.1
            ovaloval:com.redhat.rhsa:tst:20201318003
          • commenttelnet-server is signed with Red Hat redhatrelease2 key
            ovaloval:com.redhat.rhsa:tst:20201318004
        • AND
          • commenttelnet is earlier than 1:0.17-73.el8_1.1
            ovaloval:com.redhat.rhsa:tst:20201318005
          • commenttelnet is signed with Red Hat redhatrelease2 key
            ovaloval:com.redhat.rhsa:tst:20201318006
    rhsa
    idRHSA-2020:1318
    released2020-04-06
    severityImportant
    titleRHSA-2020:1318: telnet security update (Important)
  • bugzilla
    id1811673
    titleCVE-2020-10188 telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code
    oval
    OR
    • commentRed Hat Enterprise Linux must be installed
      ovaloval:com.redhat.rhba:tst:20070304026
    • AND
      • commentRed Hat Enterprise Linux 7 is installed
        ovaloval:com.redhat.rhba:tst:20150364027
      • OR
        • AND
          • commenttelnet-server is earlier than 1:0.17-65.el7_8
            ovaloval:com.redhat.rhsa:tst:20201334001
          • commenttelnet-server is signed with Red Hat redhatrelease2 key
            ovaloval:com.redhat.rhsa:tst:20201318004
        • AND
          • commenttelnet is earlier than 1:0.17-65.el7_8
            ovaloval:com.redhat.rhsa:tst:20201334003
          • commenttelnet is signed with Red Hat redhatrelease2 key
            ovaloval:com.redhat.rhsa:tst:20201318006
    rhsa
    idRHSA-2020:1334
    released2020-04-06
    severityImportant
    titleRHSA-2020:1334: telnet security update (Important)
  • bugzilla
    id1811673
    titleCVE-2020-10188 telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code
    oval
    OR
    • commentRed Hat Enterprise Linux must be installed
      ovaloval:com.redhat.rhba:tst:20070304026
    • AND
      • commentRed Hat Enterprise Linux 6 is installed
        ovaloval:com.redhat.rhba:tst:20111656003
      • OR
        • AND
          • commenttelnet-server is earlier than 1:0.17-49.el6_10
            ovaloval:com.redhat.rhsa:tst:20201335001
          • commenttelnet-server is signed with Red Hat redhatrelease2 key
            ovaloval:com.redhat.rhsa:tst:20201318004
        • AND
          • commenttelnet is earlier than 1:0.17-49.el6_10
            ovaloval:com.redhat.rhsa:tst:20201335003
          • commenttelnet is signed with Red Hat redhatrelease2 key
            ovaloval:com.redhat.rhsa:tst:20201318006
    rhsa
    idRHSA-2020:1335
    released2020-04-06
    severityImportant
    titleRHSA-2020:1335: telnet security update (Important)
  • bugzilla
    id1811673
    titleCVE-2020-10188 telnet-server: no bounds checks in nextitem() function allows to remotely execute arbitrary code
    oval
    OR
    • commentRed Hat Enterprise Linux must be installed
      ovaloval:com.redhat.rhba:tst:20070304026
    • AND
      • commentRed Hat Enterprise Linux 6 is installed
        ovaloval:com.redhat.rhba:tst:20111656003
      • OR
        • AND
          • commentkrb5-appl-servers is earlier than 0:1.0.1-10.el6_10
            ovaloval:com.redhat.rhsa:tst:20201349001
          • commentkrb5-appl-servers is signed with Red Hat redhatrelease2 key
            ovaloval:com.redhat.rhsa:tst:20110920004
        • AND
          • commentkrb5-appl-clients is earlier than 0:1.0.1-10.el6_10
            ovaloval:com.redhat.rhsa:tst:20201349003
          • commentkrb5-appl-clients is signed with Red Hat redhatrelease2 key
            ovaloval:com.redhat.rhsa:tst:20110920002
    rhsa
    idRHSA-2020:1349
    released2020-04-07
    severityImportant
    titleRHSA-2020:1349: krb5-appl security update (Important)
rpms
  • telnet-1:0.17-73.el8_1.1
  • telnet-debuginfo-1:0.17-73.el8_1.1
  • telnet-debugsource-1:0.17-73.el8_1.1
  • telnet-server-1:0.17-73.el8_1.1
  • telnet-server-debuginfo-1:0.17-73.el8_1.1
  • telnet-1:0.17-65.el7_8
  • telnet-debuginfo-1:0.17-65.el7_8
  • telnet-server-1:0.17-65.el7_8
  • telnet-1:0.17-49.el6_10
  • telnet-debuginfo-1:0.17-49.el6_10
  • telnet-server-1:0.17-49.el6_10
  • telnet-1:0.17-73.el8_0.1
  • telnet-debuginfo-1:0.17-73.el8_0.1
  • telnet-debugsource-1:0.17-73.el8_0.1
  • telnet-server-1:0.17-73.el8_0.1
  • telnet-server-debuginfo-1:0.17-73.el8_0.1
  • krb5-appl-clients-0:1.0.1-10.el6_10
  • krb5-appl-debuginfo-0:1.0.1-10.el6_10
  • krb5-appl-servers-0:1.0.1-10.el6_10

Saint

descriptionnetkit telnetd nextitem vulnerability
titlenetkit_telnetd_nextitem
typeremote