Amazon Linux 2 : rust (ALAS-2026-4072)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2 Security Advisory ALAS-2026-4072.
##

include('compat.inc');

if (description)
{
  script_id(377948);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/11/09");

  script_cve_id("CVE-2026-82247", "CVE-2026-82249");

  script_name(english:"Amazon Linux 2 : rust (ALAS-2026-4072)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux 2 host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of rust installed on the remote host is prior to 1.99.1-1. It is, therefore, affected by multiple
vulnerabilities as referenced in the ALAS2-2026-4072 advisory.

    gitoxide's gix-url crate (<= 0.32.0, fixed in 0.37.1) uses a hand-rolled URL parser that does not treat
    '?' or '#' as terminating the authority component, contrary to RFC 3986. As a consequence, gix-transport's
    HTTP redirect identity guard (can_reuse_identity) compares the wrong host and fails open. An attacker
    controlling a redirect response can craft a Location header of the form <attacker-authority>?@<original-
    authority> so that gitoxide sends the caller's HTTP Basic Authorization credentials to an unintended host.
    gix-transport is affected in versions <= 0.49.0 (fixed in 0.58.1). (CVE-2026-82247)

    gitoxide before 0.38.2 fails to validate carriage return characters in URL values passed to credential
    helpers. Attackers can supply URLs containing bare carriage returns to inject additional helper protocol
    fields and cause credential helpers to return credentials for attacker-specified hosts instead of the
    requested URL. (CVE-2026-82249)

Tenable has extracted the preceding description block directly from the tested product 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://alas.aws.amazon.com//AL2/ALAS2-2026-4072.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/faqs.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-82247.html");
  script_set_attribute(attribute:"see_also", value:"https://explore.alas.aws.amazon.com/CVE-2026-82249.html");
  script_set_attribute(attribute:"solution", value:
"Run 'yum update rust' or
  or 'yum update --advisory ALAS2-2026-4072' to update your system.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N");
  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:N/A:N");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:U");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-82247");

  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:"2026/08/28");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/11/09");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/11/09");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:cargo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:clippy");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:rust");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:rust-analyzer");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:rust-debugger-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:rust-doc");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:rust-gdb");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:rust-src");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:rust-std-static");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:rust-toolset");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:rust-toolset-srpm-macros");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:rustfmt");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

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

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/rpm-list");

  exit(0);
}

include("rpm2.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

var alas_release = get_kb_item("Host/AmazonLinux/release");
if (isnull(alas_release) || !strlen(alas_release)) audit(AUDIT_OS_NOT, "Amazon Linux");
var os_ver = pregmatch(pattern: "^AL(A|\d+|-\d+)", string:alas_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);

var pkgs = [
    {'reference':'cargo-1.99.1-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'cargo-1.99.1-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'clippy-1.99.1-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'clippy-1.99.1-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-1.99.1-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-1.99.1-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-analyzer-1.99.1-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-analyzer-1.99.1-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-debugger-common-1.99.1-1.amzn2', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-doc-1.99.1-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-doc-1.99.1-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-gdb-1.99.1-1.amzn2', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-src-1.99.1-1.amzn2', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-std-static-1.99.1-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-std-static-1.99.1-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-toolset-1.99.1-1.amzn2', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rust-toolset-srpm-macros-1.99.1-1.amzn2', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rustfmt-1.99.1-1.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE},
    {'reference':'rustfmt-1.99.1-1.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var el_string = NULL;
  var rpm_spec_vers_cmp = NULL;
  var epoch = NULL;
  var allowmaj = NULL;
  var exists_check = NULL;
  var cves = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = 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 (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
  if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (!empty_or_null(package_array['cves'])) cves = package_array['cves'];
  if (reference && _release && (!exists_check || rpm_exists(release:_release, rpm:exists_check))) {
    if (rpm_check(release:_release, 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, "cargo / clippy / rust / etc");
}