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nessusThis script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.F5_BIGIP_SOL000140620.NASL
HistoryAug 15, 2024 - 12:00 a.m.

F5 Networks BIG-IP : Apache HTTPD vulnerabilities (K000140620)

2024-08-1500:00:00
This script is Copyright (C) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
7
f5 networks big-ip
apache httpd
k000140620
cve-2024-38474
mod_rewrite
code execution
source disclosure
tenable
nessus

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

10

Confidence

High

EPSS

0.036

Percentile

91.8%

The version of F5 Networks BIG-IP installed on the remote host is prior to tested version. It is, therefore, affected by multiple vulnerabilities as referenced in the K000140620 advisory.

CVE-2024-38474Substitution encoding issue in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows     attacker to execute scripts in directories permitted by the configuration but not directly reachable by     anyURL or source disclosure of scripts meant to only to be executed as CGI. Users are recommended to     upgrade to version 2.4.60, which fixes this issue. Some RewriteRules that capture and substitute unsafely     will now fail unless rewrite flag UnsafeAllow3F is specified.CVE-2024-38475Improper escaping of output     in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to map URLs to filesystem     locations that are permitted to be served by the server but are not intentionally/directly reachable by     any URL, resulting in code execution or source code disclosure. Substitutions in server context that use a     backreferences or variables as the first segment of the substitution are affected. Some unsafe     RewiteRules will be broken by this change and the rewrite flag UnsafePrefixStat can be used to opt back     in once ensuring the substitution is appropriately constrained.

Tenable has extracted the preceding description block directly from the F5 Networks BIG-IP security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application’s self-reported version number.

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from F5 Networks BIG-IP Solution K000140620.
#
# @NOAGENT@
##

include('compat.inc');

if (description)
{
  script_id(205621);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/23");

  script_cve_id("CVE-2024-38474", "CVE-2024-38475");
  script_xref(name:"IAVA", value:"2024-A-0507");

  script_name(english:"F5 Networks BIG-IP : Apache HTTPD vulnerabilities (K000140620)");

  script_set_attribute(attribute:"synopsis", value:
"The remote device is missing a vendor-supplied security patch.");
  script_set_attribute(attribute:"description", value:
"The version of F5 Networks BIG-IP installed on the remote host is prior to tested version. It is, therefore, affected by
multiple vulnerabilities as referenced in the K000140620 advisory.

    CVE-2024-38474Substitution encoding issue in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows
    attacker to execute scripts in directories permitted by the configuration but not directly reachable by
    anyURL or source disclosure of scripts meant to only to be executed as CGI. Users are recommended to
    upgrade to version 2.4.60, which fixes this issue. Some RewriteRules that capture and substitute unsafely
    will now fail unless rewrite flag UnsafeAllow3F is specified.CVE-2024-38475Improper escaping of output
    in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to map URLs to filesystem
    locations that are permitted to be served by the server but are not intentionally/directly reachable by
    any URL, resulting in code execution or source code disclosure. Substitutions in server context that use a
    backreferences or variables as the first segment of the substitution are affected. Some unsafe
    RewiteRules will be broken by this change and the rewrite flag UnsafePrefixStat can be used to opt back
    in once ensuring the substitution is appropriately constrained.

Tenable has extracted the preceding description block directly from the F5 Networks BIG-IP 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://my.f5.com/manage/s/article/K000140620");
  script_set_attribute(attribute:"solution", value:
"The vendor has acknowledged the vulnerability, but no solution has been provided.
Refer to the vendor for remediation guidance.");
  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-2024-38474");

  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:"2024/07/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2024/08/15");

  script_set_attribute(attribute:"potential_vulnerability", value:"true");
  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_access_policy_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_advanced_firewall_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_application_security_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_domain_name_system");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_global_traffic_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_local_traffic_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_policy_enforcement_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:f5:big-ip_wan_optimization_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:f5:big-ip_protocol_security_manager");
  script_set_attribute(attribute:"cpe", value:"cpe:/h:f5:big-ip");
  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:"F5 Networks Local Security Checks");

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

  script_dependencies("f5_bigip_detect.nbin");
  script_require_keys("Host/local_checks_enabled", "Host/BIG-IP/hotfix", "Host/BIG-IP/modules", "Host/BIG-IP/version", "Settings/ParanoidReport");

  exit(0);
}


include('f5_func.inc');

if ( ! get_kb_item('Host/local_checks_enabled') ) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var version = get_kb_item('Host/BIG-IP/version');
if ( ! version ) audit(AUDIT_OS_NOT, 'F5 Networks BIG-IP');
if ( isnull(get_kb_item('Host/BIG-IP/hotfix')) ) audit(AUDIT_KB_MISSING, 'Host/BIG-IP/hotfix');
if ( ! get_kb_item('Host/BIG-IP/modules') ) audit(AUDIT_KB_MISSING, 'Host/BIG-IP/modules');

if (report_paranoia < 2) audit(AUDIT_PARANOID);

var sol = 'K000140620';
var vmatrix = {
  'AFM': {
    'affected': [
      '17.1.0-17.1.1','16.1.0-16.1.5','15.1.0-15.1.10'
    ],
  },
  'APM': {
    'affected': [
      '17.1.0-17.1.1','16.1.0-16.1.5','15.1.0-15.1.10'
    ],
  },
  'ASM': {
    'affected': [
      '17.1.0-17.1.1','16.1.0-16.1.5','15.1.0-15.1.10'
    ],
  },
  'DNS': {
    'affected': [
      '17.1.0-17.1.1','16.1.0-16.1.5','15.1.0-15.1.10'
    ],
  },
  'GTM': {
    'affected': [
      '17.1.0-17.1.1','16.1.0-16.1.5','15.1.0-15.1.10'
    ],
  },
  'LTM': {
    'affected': [
      '17.1.0-17.1.1','16.1.0-16.1.5','15.1.0-15.1.10'
    ],
  },
  'PEM': {
    'affected': [
      '17.1.0-17.1.1','16.1.0-16.1.5','15.1.0-15.1.10'
    ],
  },
  'PSM': {
    'affected': [
      '17.1.0-17.1.1','16.1.0-16.1.5','15.1.0-15.1.10'
    ],
  },
  'WOM': {
    'affected': [
      '17.1.0-17.1.1','16.1.0-16.1.5','15.1.0-15.1.10'
    ],
  }
};

if (bigip_is_affected(vmatrix:vmatrix, sol:sol))
{
  var extra = NULL;
  if (report_verbosity > 0) extra = bigip_report_get();
  security_report_v4(
      port       : 0,
      severity   : SECURITY_HOLE,
      extra      : extra
  );
}
else
{
  var tested = bigip_get_tested_modules();
  var audit_extra = 'For BIG-IP module(s) ' + tested + ',';
  if (tested) audit(AUDIT_INST_VER_NOT_VULN, audit_extra, version);
  else audit(AUDIT_HOST_NOT, 'running any of the affected modules');
}

CVSS3

9.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

AI Score

10

Confidence

High

EPSS

0.036

Percentile

91.8%