Slackware Linux 14.0 / 14.1 / 14.2 / 15.0 / current httpd Multiple Vulnerabilities (SSA:2023-067-01)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##
#
# The descriptive text and package checks in this plugin were
# extracted from Slackware Security Advisory SSA:2023-067-01. The text
# itself is copyright (C) Slackware Linux, Inc.
##

include('compat.inc');

if (description)
{
  script_id(172358);
  script_version("1.6");
  script_set_attribute(attribute:"plugin_modification_date", value:"2023/10/21");

  script_cve_id("CVE-2023-25690", "CVE-2023-27522");
  script_xref(name:"IAVA", value:"2023-A-0124-S");

  script_name(english:"Slackware Linux 14.0 / 14.1 / 14.2 / 15.0 / current httpd  Multiple Vulnerabilities (SSA:2023-067-01)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Slackware Linux host is missing a security update to httpd.");
  script_set_attribute(attribute:"description", value:
"The version of httpd installed on the remote host is prior to 2.4.56. It is, therefore, affected by multiple
vulnerabilities as referenced in the SSA:2023-067-01 advisory.

  - Some mod_proxy configurations on Apache HTTP Server versions 2.4.0 through 2.4.55 allow a HTTP Request
    Smuggling attack. Configurations are affected when mod_proxy is enabled along with some form of
    RewriteRule or ProxyPassMatch in which a non-specific pattern matches some portion of the user-supplied
    request-target (URL) data and is then re-inserted into the proxied request-target using variable
    substitution. For example, something like: RewriteEngine on RewriteRule ^/here/(.*)
    http://example.com:8080/elsewhere?$1; [P] ProxyPassReverse /here/ http://example.com:8080/ Request
    splitting/smuggling could result in bypass of access controls in the proxy server, proxying unintended
    URLs to existing origin servers, and cache poisoning. Users are recommended to update to at least version
    2.4.56 of Apache HTTP Server. (CVE-2023-25690)

  - HTTP Response Smuggling vulnerability in Apache HTTP Server via mod_proxy_uwsgi. This issue affects Apache
    HTTP Server: from 2.4.30 through 2.4.55. Special characters in the origin response header can
    truncate/split the response forwarded to the client. (CVE-2023-27522)

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:"solution", value:
"Upgrade the affected httpd 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:POC/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:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2023-25690");

  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:"2023/03/07");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/03/09");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:slackware:slackware_linux:httpd");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux:14.0");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux:14.1");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux:14.2");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:slackware:slackware_linux:15.0");
  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:"Slackware Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2023 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Slackware/release", "Host/Slackware/packages");

  exit(0);
}

include("slackware.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (!get_kb_item("Host/Slackware/release")) audit(AUDIT_OS_NOT, "Slackware");
if (!get_kb_item("Host/Slackware/packages")) 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$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Slackware", cpu);

var flag = 0;
var constraints = [
    { 'fixed_version' : '2.4.56', 'product' : 'httpd', 'os_name' : 'Slackware Linux', 'os_version' : '14.0', 'service_pack' : '1_slack14.0', 'arch' : 'i486' },
    { 'fixed_version' : '2.4.56', 'product' : 'httpd', 'os_name' : 'Slackware Linux', 'os_version' : '14.0', 'service_pack' : '1_slack14.0', 'arch' : 'x86_64' },
    { 'fixed_version' : '2.4.56', 'product' : 'httpd', 'os_name' : 'Slackware Linux', 'os_version' : '14.1', 'service_pack' : '1_slack14.1', 'arch' : 'i486' },
    { 'fixed_version' : '2.4.56', 'product' : 'httpd', 'os_name' : 'Slackware Linux', 'os_version' : '14.1', 'service_pack' : '1_slack14.1', 'arch' : 'x86_64' },
    { 'fixed_version' : '2.4.56', 'product' : 'httpd', 'os_name' : 'Slackware Linux', 'os_version' : '14.2', 'service_pack' : '1_slack14.2', 'arch' : 'i586' },
    { 'fixed_version' : '2.4.56', 'product' : 'httpd', 'os_name' : 'Slackware Linux', 'os_version' : '14.2', 'service_pack' : '1_slack14.2', 'arch' : 'x86_64' },
    { 'fixed_version' : '2.4.56', 'product' : 'httpd', 'os_name' : 'Slackware Linux', 'os_version' : '15.0', 'service_pack' : '1_slack15.0', 'arch' : 'i586' },
    { 'fixed_version' : '2.4.56', 'product' : 'httpd', 'os_name' : 'Slackware Linux', 'os_version' : '15.0', 'service_pack' : '1_slack15.0', 'arch' : 'x86_64' },
    { 'fixed_version' : '2.4.56', 'product' : 'httpd', 'os_name' : 'Slackware Linux', 'os_version' : 'current', 'service_pack' : '1', 'arch' : 'i586' },
    { 'fixed_version' : '2.4.56', 'product' : 'httpd', 'os_name' : 'Slackware Linux', 'os_version' : 'current', 'service_pack' : '1', 'arch' : 'x86_64' }
];

foreach constraint (constraints) {
    var pkg_arch = constraint['arch'];
    var arch = NULL;
    if (pkg_arch == "x86_64") {
        arch = pkg_arch;
    }
    if (slackware_check(osver:constraint['os_version'],
                        arch:arch,
                        pkgname:constraint['product'],
                        pkgver:constraint['fixed_version'],
                        pkgarch:pkg_arch,
                        pkgnum:constraint['service_pack'])) flag++;
}

if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : slackware_report_get()
  );
  exit(0);
}
else audit(AUDIT_HOST_NOT, "affected");