EulerOS 2.0 SP13 : vim (EulerOS-SA-2026-3055)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(332837);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/08/06");

  script_cve_id(
    "CVE-2026-41411",
    "CVE-2026-42307",
    "CVE-2026-44656",
    "CVE-2026-45130",
    "CVE-2026-46483",
    "CVE-2026-47162"
  );

  script_name(english:"EulerOS 2.0 SP13 : vim (EulerOS-SA-2026-3055)");

  script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS host is missing multiple security updates.");
  script_set_attribute(attribute:"description", value:
"According to the versions of the vim packages installed, the EulerOS installation on the remote host is affected by the
following vulnerabilities :

    Vim is an open source, command line text editor. Prior to version 9.2.0495, a Vimscript code injection
    vulnerability exists in s:NetrwBookHistSave() in the netrw plugin
    (runtime/pack/dist/opt/netrw/autoload/netrw.vim) when serializing browsed directory paths to the history
    file ~/.vim/.netrwhist. A directory name derived from the filesystem is interpolated into a single-quoted
    Vimscript string literal without escaping embedded single quotes, allowing a crafted directory name to
    break out of the string context and execute arbitrary Vimscript, including shell commands via system() and
    :!, the next time the history file is sourced. This issue has been patched in version
    9.2.0495.(CVE-2026-47162)

    Vim is an open source, command line text editor. Prior to 9.2.0479, a command injection vulnerability
    exists in tar#Vimuntar() in
    runtime/autoload/tar.vim when decompressing .tgz archives on Unix-like systems. The function builds
    :!gunzip and :!gzip -d commands using shellescape(tartail) without the {special} flag, allowing a crafted
    archive filename to trigger Vim cmdline-special expansion and execute shell commands in the user's
    context. This vulnerability is fixed in 9.2.0479.(CVE-2026-46483)

    Vim is an open source, command line text editor. Prior to version 9.2.0450, a heap buffer overflow exists
    in read_compound() in src/spellfile.c when loading a crafted spell file (.spl) with UTF-8 encoding active.
    An attacker-controlled length field in the spell file's compound section overflows a 32-bit signed integer
    multiplication, causing a small buffer to be allocated for a write loop that runs many iterations,
    overflowing the heap. Because the 'spelllang' option can be set from a modeline, a text file modeline can
    trigger spell file loading if a malicious .spl file has been planted on the runtimepath. This issue has
    been patched in version 9.2.0450.(CVE-2026-45130)

    Vim is an open source, command line text editor. Prior to version 9.2.0383, an OS command injection
    vulnerability exists in the netrw standard plugin bundled with Vim. By inducing a user to open a crafted
    URL (e.g., using the sftp:// or file:// protocol handlers), an attacker can execute arbitrary shell
    commands with the privileges of the Vim process. This issue has been patched in version
    9.2.0383.(CVE-2026-42307)

    Vim is an open source, command line text editor. Prior to version 9.2.0435, an OS command injection
    vulnerability exists in Vim's :find command-line completion. When the path option contains backtick-
    enclosed shell commands, those commands are executed during file name completion. Because the path option
    lacks the P_SECURE flag, it can be set from a modeline, allowing an attacker who controls the contents of
    a file to execute arbitrary shell commands when the user opens that file in Vim and triggers :find
    completion. This issue has been patched in version 9.2.0435.(CVE-2026-44656)

    Vim is an open source, command line text editor. Prior to 9.2.0357, A command injection vulnerability
    exists in Vim's tag file processing. When resolving a tag, the filename field from the tags file is passed
    through wildcard expansion to resolve environment variables and wildcards. If the filename field contains
    backtick syntax (e.g., `command`), Vim executes the embedded command via the system shell with the full
    privileges of the running user.(CVE-2026-41411)

Tenable has extracted the preceding description block directly from the EulerOS vim security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2026-3055
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?f896e78c");
  script_set_attribute(attribute:"solution", value:
"Update the affected vim 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:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss4_vector", value:"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N");
  script_set_attribute(attribute:"cvss4_threat_vector", value:"CVSS:4.0/E:P");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-47162");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/04/24");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/08/06");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/08/06");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:vim-common");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:vim-enhanced");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:vim-filesystem");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:vim-minimal");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:2.0");
  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) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/cpu", "Host/EulerOS/release", "Host/EulerOS/rpm-list", "Host/EulerOS/sp");
  script_exclude_keys("Host/EulerOS/uvp_version");

  exit(0);
}

include("rpm.inc");

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

var _release = get_kb_item("Host/EulerOS/release");
if (isnull(_release) || _release !~ "^EulerOS") audit(AUDIT_OS_NOT, "EulerOS");
var uvp = get_kb_item("Host/EulerOS/uvp_version");
if (_release !~ "^EulerOS release 2\.0(\D|$)") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP13");

var sp = get_kb_item("Host/EulerOS/sp");
if (isnull(sp) || sp !~ "^(13)$") audit(AUDIT_OS_NOT, "EulerOS 2.0 SP13");

if (!empty_or_null(uvp)) audit(AUDIT_OS_NOT, "EulerOS 2.0 SP13", "EulerOS UVP " + uvp);

if (!get_kb_item("Host/EulerOS/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$" && "aarch64" >!< cpu && "x86" >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);

var flag = 0;

var pkgs = [
  "vim-common-9.0-23.h29.eulerosv2r13",
  "vim-enhanced-9.0-23.h29.eulerosv2r13",
  "vim-filesystem-9.0-23.h29.eulerosv2r13",
  "vim-minimal-9.0-23.h29.eulerosv2r13"
];

foreach (var pkg in pkgs)
  if (rpm_check(release:"EulerOS-2.0", sp:"13", reference:pkg)) 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, "vim");
}