libcurl 7.32.0 < 8.9.1 DoS (CVE-2024-7264)

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

include('compat.inc');

if (description)
{
  script_id(205024);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/10/07");

  script_cve_id("CVE-2024-7264");
  script_xref(name:"IAVA", value:"2024-A-0457-S");

  script_name(english:"libcurl 7.32.0 < 8.9.1 DoS (CVE-2024-7264)");

  script_set_attribute(attribute:"synopsis", value:
"The remote host contains a version of libcurl that is affected by a DoS vulnerability.");
  script_set_attribute(attribute:"description", value:
"The version of libcurl installed on the remote host is between 7.32.0 and prior to 8.9.1. It is, therefore, affected by a
denial of service (DoS) vulnerability. libcurl's ASN1 parser code has the GTime2str() function, used for parsing an 
ASN.1 Generalized Time field. If given an syntactically incorrect field, the parser might end up using -1 for the length
of the time fraction, leading to a strlen() getting performed on a pointer to a heap buffer area that is not (purposely)
null terminated. This flaw most likely leads to a crash, but can also lead to heap contents getting returned to the
application when CURLINFO_CERTINFO is used.

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://curl.se/docs/CVE-2024-7264.html");
  script_set_attribute(attribute:"solution", value:
"Upgrade Curl to version 8.9.1 or later");
  script_set_attribute(attribute:"agent", value:"all");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:N/I:N/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:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-7264");

  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:"2024/07/31");
  script_set_attribute(attribute:"patch_publication_date", value:"2024/07/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/08/06");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:haxx:libcurl");
  script_set_attribute(attribute:"stig_severity", value:"I");
  script_set_attribute(attribute:"thorough_tests", value:"true");
  script_set_attribute(attribute:"asset_categories", value:"component");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("libcurl_win_installed.nbin", "libcurl_nix_installed.nbin");
  script_require_keys("installed_sw/libcurl");

  exit(0);
}

include('vcf.inc');

var app_info = vcf::combined_get_app_info(app:'libcurl');

vcf::check_all_backporting(app_info:app_info);

var constraints = [
  {'min_version': '7.32', 'fixed_version' : '8.9.1'}
];

vcf::check_version_and_report(app_info:app_info, constraints:constraints, severity:SECURITY_HOLE);