TencentOS Server 3: go-toolset:rhel8 (TSSA-2023:0177)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Tencent Linux Security Advisory TSSA-2023:0177.
##

include('compat.inc');

if (description)
{
  script_id(276422);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/12/05");

  script_cve_id(
    "CVE-2023-29402",
    "CVE-2023-29403",
    "CVE-2023-29404",
    "CVE-2023-29405"
  );
  script_xref(name:"IAVB", value:"2023-B-0040-S");
  script_xref(name:"IAVB", value:"2023-B-0080-S");

  script_name(english:"TencentOS Server 3: go-toolset:rhel8 (TSSA-2023:0177)");

  script_set_attribute(attribute:"synopsis", value:
"The remote TencentOS Server 3 host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The version of Tencent Linux installed on the remote TencentOS Server 3 host is prior to tested version. It is,
therefore, affected by multiple vulnerabilities as referenced in the TSSA-2023:0177 advisory.

    Package updates are available for TencentOS Server 3 that fix the following vulnerabilities:

      CVE-2023-29402:
      The go command may generate unexpected code at build time when using cgo. This may result in unexpected
    behavior when running a go program which uses cgo. This may occur when running an untrusted module which
    contains directories with newline characters in their names. Modules which are retrieved using the go
    command, i.e. via go get, are not affected (modules retrieved using GOPATH-mode, i.e. GO111MODULE=off,
    may be affected).

      CVE-2023-29403:
      On Unix platforms, the Go runtime does not behave differently when a binary is run with the
    setuid/setgid bits. This can be dangerous in certain cases, such as when dumping memory state, or assuming
    the status of standard i/o file descriptors. If a setuid/setgid binary is executed with standard I/O file
    descriptors closed, opening any files can result in unexpected content being read or written with elevated
    privileges. Similarly, if a setuid/setgid program is terminated, either via panic or signal, it may leak
    the contents of its registers.

      CVE-2023-29404:
      The go command may execute arbitrary code at build time when using cgo. This may occur when running go
    get on a malicious module, or when running any other command which builds untrusted code. This is can by
    triggered by linker flags, specified via a #cgo LDFLAGS directive. The arguments for a number of flags
    which are non-optional are incorrectly considered optional, allowing disallowed flags to be smuggled
    through the LDFLAGS sanitization. This affects usage of both the gc and gccgo compilers.

      CVE-2023-29405:
      The go command may execute arbitrary code at build time when using cgo. This may occur when running go
    get on a malicious module, or when running any other command which builds untrusted code. This is can by
    triggered by linker flags, specified via a #cgo LDFLAGS directive. Flags containing embedded spaces are
    mishandled, allowing disallowed flags to be smuggled through the LDFLAGS sanitization by including them in
    the argument of another flag. This only affects usage of the gccgo compiler.

Tenable has extracted the preceding description block directly from the Tencent Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://mirrors.tencent.com/tlinux/errata/tssa-20230177.xml");
  script_set_attribute(attribute:"solution", value:
"Update 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:"cvss_score_source", value:"CVE-2023-29405");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2023/06/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/09/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/11/20");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:tencent:tencentos_server:3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:tencent:tencentos_server:delve");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:tencent:tencentos_server:go-toolset");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:tencent:tencentos_server:golang");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Tencent Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2025 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/etc/os-release", "Host/TencentOS/rpm-list", "Host/cpu");

  exit(0);
}


include('rpm2.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_product = get_kb_item('installed_os/local/SSH/0/product');
if (isnull(os_product) || 'TencentOS' >!< os_product) audit(AUDIT_OS_NOT, 'TencentOS');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'TencentOS');
if (! preg(pattern:"^3([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'TencentOS 3.x', 'TencentOS ' + os_version);

if (!get_kb_item('Host/TencentOS/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var 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, 'TencentOS', cpu);

var constraints = [
  {
    'release': '3',
    'pkgs': [
      {'reference':'delve-1.9.1-1.module+el8.8.0+493+4e428d0d', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'delve-debuginfo-1.9.1-1.module+el8.8.0+493+4e428d0d', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'delve-debugsource-1.9.1-1.module+el8.8.0+493+4e428d0d', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'go-toolset-1.19.10-1.module+el8.8.0+493+4e428d0d', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'go-toolset-1.19.10-1.module+el8.8.0+493+4e428d0d', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'golang-1.19.10-1.module+el8.8.0+493+4e428d0d', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'golang-1.19.10-1.module+el8.8.0+493+4e428d0d', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'golang-bin-1.19.10-1.module+el8.8.0+493+4e428d0d', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'golang-bin-1.19.10-1.module+el8.8.0+493+4e428d0d', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'golang-docs-1.19.10-1.module+el8.8.0+493+4e428d0d', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'golang-misc-1.19.10-1.module+el8.8.0+493+4e428d0d', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'golang-race-1.19.10-1.module+el8.8.0+493+4e428d0d', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'golang-src-1.19.10-1.module+el8.8.0+493+4e428d0d', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'golang-tests-1.19.10-1.module+el8.8.0+493+4e428d0d', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

var os_release = get_one_kb_item('installed_os/local/SSH/0/release');
var os_sp = get_one_kb_item('Host/*/minor_release');

var flag = 0;
var reference;
var sp;
var _cpu;
var el_string;
var rpm_spec_vers_cmp;
var epoch;
var allowmaj;
var exists_check;
var cves;
foreach var constraint ( constraints ) {
  # Check that the target release is equal to the affected release
  if (!empty_or_null(constraint['release'])){
    if (constraint['release'] != os_release) continue;
  }
  if (!empty_or_null(constraint['sp'])){
    if (constraint['sp'] != os_sp) continue;
  }
  foreach var pkg ( constraint['pkgs'] ) {
    reference = NULL;
    sp = NULL;
    _cpu = NULL;
    el_string = NULL;
    rpm_spec_vers_cmp = NULL;
    epoch = NULL;
    allowmaj = NULL;
    exists_check = NULL;
    cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        ## (no known rpm to check OR known rpm_exists)
        (!exists_check || rpm_exists(rpm:exists_check)) &&
        rpm_check(sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) flag++;
  }
}

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'delve / delve-debuginfo / delve-debugsource / etc');
}