CVSS3
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
Confidence
High
EPSS
Percentile
91.8%
It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2024-656 advisory.
Encoding problem in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows request URLs with incorrect encoding to be sent to backend services, potentially bypassing authentication via crafted requests.Users are recommended to upgrade to version 2.4.60, which fixes this issue. (CVE-2024-38473)
Substitution encoding issue in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows attacker to execute scripts indirectories permitted by the configuration but not directly reachable by any URL 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-2024-38474)
Improper 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.
(CVE-2024-38475)
Vulnerability in core of Apache HTTP Server 2.4.59 and earlier are vulnerably to information disclosure, SSRF or local script execution via backend applications whose response headers are malicious or exploitable.
Users are recommended to upgrade to version 2.4.60, which fixes this issue. (CVE-2024-38476)
null pointer dereference in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows an attacker to crash the server via a malicious request.Users are recommended to upgrade to version 2.4.60, which fixes this issue. (CVE-2024-38477)
Potential SSRF in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to cause unsafe RewriteRules to unexpectedly setup URL's to be handled by mod_proxy.Users are recommended to upgrade to version 2.4.60, which fixes this issue. (CVE-2024-39573)
A regression in the core of Apache HTTP Server 2.4.60 ignores some use of the legacy content-type based configuration of handlers. AddType and similar configuration, under some circumstances where files are requested indirectly, result in source code disclosure of local content. For example, PHP scripts may be served instead of interpreted.
Users are recommended to upgrade to version 2.4.61, which fixes this issue. (CVE-2024-39884)
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.
#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2023 Security Advisory ALAS2023-2024-656.
##
include('compat.inc');
if (description)
{
script_id(202915);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2024/08/22");
script_cve_id(
"CVE-2024-38473",
"CVE-2024-38474",
"CVE-2024-38475",
"CVE-2024-38476",
"CVE-2024-38477",
"CVE-2024-39573",
"CVE-2024-39884"
);
script_name(english:"Amazon Linux 2023 : httpd, httpd-core, httpd-devel (ALAS2023-2024-656)");
script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux 2023 host is missing a security update.");
script_set_attribute(attribute:"description", value:
"It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2024-656 advisory.
Encoding problem in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows request URLs with incorrect
encoding to be sent to backend services, potentially bypassing authentication via crafted requests.Users
are recommended to upgrade to version 2.4.60, which fixes this issue. (CVE-2024-38473)
Substitution encoding issue in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows attacker to
execute scripts indirectories permitted by the configuration but not directly reachable by any URL 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-2024-38474)
Improper 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.
(CVE-2024-38475)
Vulnerability in core of Apache HTTP Server 2.4.59 and earlier are vulnerably to information disclosure,
SSRF or local script execution via backend applications whose response headers are malicious or
exploitable.
Users are recommended to upgrade to version 2.4.60, which fixes this issue. (CVE-2024-38476)
null pointer dereference in mod_proxy in Apache HTTP Server 2.4.59 and earlier allows an attacker to crash
the server via a malicious request.Users are recommended to upgrade to version 2.4.60, which fixes this
issue. (CVE-2024-38477)
Potential SSRF in mod_rewrite in Apache HTTP Server 2.4.59 and earlier allows an attacker to cause unsafe
RewriteRules to unexpectedly setup URL's to be handled by mod_proxy.Users are recommended to upgrade to
version 2.4.60, which fixes this issue. (CVE-2024-39573)
A regression in the core of Apache HTTP Server 2.4.60 ignores some use of the legacy content-type based
configuration of handlers. AddType and similar configuration, under some circumstances where files are
requested indirectly, result in source code disclosure of local content. For example, PHP scripts may be
served instead of interpreted.
Users are recommended to upgrade to version 2.4.61, which fixes this issue. (CVE-2024-39884)
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/AL2023/ALAS-2024-656.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2024-38473.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2024-38474.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2024-38475.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2024-38476.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2024-38477.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2024-39573.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2024-39884.html");
script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/faqs.html");
script_set_attribute(attribute:"solution", value:
"Run 'dnf update httpd --releasever 2023.5.20240722' to update your system.");
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-2024-38476");
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:"patch_publication_date", value:"2024/07/18");
script_set_attribute(attribute:"plugin_publication_date", value:"2024/07/22");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:httpd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:httpd-core");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:httpd-core-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:httpd-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:httpd-debugsource");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:httpd-devel");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:httpd-filesystem");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:httpd-manual");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:httpd-tools");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:httpd-tools-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mod_ldap");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mod_ldap-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mod_lua");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mod_lua-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mod_proxy_html");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mod_proxy_html-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mod_session");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mod_session-debuginfo");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mod_ssl");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:mod_ssl-debuginfo");
script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2023");
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) 2024 and is owned by Tenable, Inc. or an Affiliate thereof.");
script_dependencies("ssh_get_info.nasl");
script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/rpm-list");
exit(0);
}
include("rpm.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 != "-2023")
{
if (os_ver == 'A') os_ver = 'AMI';
audit(AUDIT_OS_NOT, "Amazon Linux 2023", "Amazon Linux " + os_ver);
}
if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);
var pkgs = [
{'reference':'httpd-2.4.61-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-2.4.61-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-core-2.4.61-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-core-2.4.61-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-core-debuginfo-2.4.61-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-core-debuginfo-2.4.61-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-debuginfo-2.4.61-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-debuginfo-2.4.61-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-debugsource-2.4.61-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-debugsource-2.4.61-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-devel-2.4.61-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-devel-2.4.61-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-filesystem-2.4.61-1.amzn2023', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-manual-2.4.61-1.amzn2023', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-tools-2.4.61-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-tools-2.4.61-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-tools-debuginfo-2.4.61-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'httpd-tools-debuginfo-2.4.61-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_ldap-2.4.61-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_ldap-2.4.61-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_ldap-debuginfo-2.4.61-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_ldap-debuginfo-2.4.61-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_lua-2.4.61-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_lua-2.4.61-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_lua-debuginfo-2.4.61-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_lua-debuginfo-2.4.61-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_proxy_html-2.4.61-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_proxy_html-2.4.61-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_proxy_html-debuginfo-2.4.61-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_proxy_html-debuginfo-2.4.61-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_session-2.4.61-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_session-2.4.61-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_session-debuginfo-2.4.61-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_session-debuginfo-2.4.61-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_ssl-2.4.61-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_ssl-2.4.61-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_ssl-debuginfo-2.4.61-1.amzn2023', 'cpu':'aarch64', 'release':'AL-2023', 'rpm_spec_vers_cmp':TRUE},
{'reference':'mod_ssl-debuginfo-2.4.61-1.amzn2023', 'cpu':'x86_64', 'release':'AL-2023', '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;
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 (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)) 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, "httpd / httpd-core / httpd-core-debuginfo / etc");
}
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38473
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38474
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38475
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38476
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-38477
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-39573
cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2024-39884
alas.aws.amazon.com/AL2023/ALAS-2024-656.html
alas.aws.amazon.com/cve/html/CVE-2024-38473.html
alas.aws.amazon.com/cve/html/CVE-2024-38474.html
alas.aws.amazon.com/cve/html/CVE-2024-38475.html
alas.aws.amazon.com/cve/html/CVE-2024-38476.html
alas.aws.amazon.com/cve/html/CVE-2024-38477.html
alas.aws.amazon.com/cve/html/CVE-2024-39573.html
alas.aws.amazon.com/cve/html/CVE-2024-39884.html
alas.aws.amazon.com/faqs.html
CVSS3
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
Confidence
High
EPSS
Percentile
91.8%