EulerOS Virtualization 2.10.1 : httpd (EulerOS-SA-2022-1373) - Nessus
Critical Plugin ID: 159879This page contains detailed information about the EulerOS Virtualization 2.10.1 : httpd (EulerOS-SA-2022-1373) Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.
Plugin Overview
ID: 159879
Name: EulerOS Virtualization 2.10.1 : httpd (EulerOS-SA-2022-1373)
Filename: EulerOS_SA-2022-1373.nasl
Vulnerability Published: 2021-09-16
This Plugin Published: 2022-04-18
Last Modification Time: 2022-04-27
Plugin Version: 1.3
Plugin Type: local
Plugin Family: Huawei Local Security Checks
Dependencies:
ssh_get_info.nasl
Required KB Items [?]: Host/cpu, Host/EulerOS/release, Host/EulerOS/rpm-list, Host/EulerOS/uvp_version, Host/local_checks_enabled
Vulnerability Information
Severity: Critical
Vulnerability Published: 2021-09-16
Patch Published: 2022-04-13
CVE [?]: CVE-2021-34798, CVE-2021-36160, CVE-2021-39275, CVE-2021-40438
CPE [?]: cpe:/o:huawei:euleros:uvp:2.10.1, p-cpe:/a:huawei:euleros:httpd, p-cpe:/a:huawei:euleros:httpd-filesystem, p-cpe:/a:huawei:euleros:httpd-tools
Synopsis
The remote EulerOS Virtualization host is missing multiple security updates.
Description
According to the versions of the httpd packages installed, the EulerOS Virtualization installation on the remote host is affected by the following vulnerabilities :
- Malformed requests may cause the server to dereference a NULL pointer. This issue affects Apache HTTP Server 2.4.48 and earlier. (CVE-2021-34798)
- A carefully crafted request uri-path can cause mod_proxy_uwsgi to read above the allocated memory and crash (DoS). This issue affects Apache HTTP Server versions 2.4.30 to 2.4.48 (inclusive). (CVE-2021-36160)
- ap_escape_quotes() may write beyond the end of a buffer when given malicious input. No included modules pass untrusted data to these functions, but third-party / external modules may. This issue affects Apache HTTP Server 2.4.48 and earlier. (CVE-2021-39275)
- A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the remote user. This issue affects Apache HTTP Server 2.4.48 and earlier. (CVE-2021-40438)
Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
Solution
Update the affected httpd packages.
Public Exploits
Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (GitHub)
Exploit Ease: Exploits are available
Here's the list of publicly known exploits and PoCs for verifying the EulerOS Virtualization 2.10.1 : httpd (EulerOS-SA-2022-1373) vulnerability:
- GitHub: https://github.com/0day666/Vulnerability-verification
[CVE-2021-40438] - GitHub: https://github.com/BabyTeam1024/CVE-2021-40438
[CVE-2021-40438] - GitHub: https://github.com/CHYbeta/OddProxyDemo
[CVE-2021-40438] - GitHub: https://github.com/HxDDD/CVE-PoC
[CVE-2021-40438] - GitHub: https://github.com/Kashkovsky/CVE-2021-40438
[CVE-2021-40438: Apache forward request CVE] - GitHub: https://github.com/harsh-bothra/learn365
[CVE-2021-40438] - GitHub: https://github.com/litt1eb0yy/One-Liner-Scripts
[CVE-2021-40438] - GitHub: https://github.com/vsh00t/BB-PoC
[CVE-2021-40438] - GitHub: https://github.com/xiaojiangxl/CVE-2021-40438
[CVE-2021-40438] - GitHub: https://github.com/ericmann/apache-cve-poc
[CVE-2021-40438: Dockerized Proof-of-Concept of CVE-2021-40438 in Apache 2.4.48.] - GitHub: https://github.com/pisut4152/Sigma-Rule-for-CVE-2021-40438-exploitation-attempt
[CVE-2021-40438: Sigma-Rule-for-CVE-2021-40438-Attack-Attemp] - GitHub: https://github.com/sixpacksecurity/CVE-2021-40438
[CVE-2021-40438: CVE-2021-40438 exploit PoC with Docker setup.]
Before running any exploit against any system, make sure you are authorized by the owner of the target system(s) to perform such activity. In any other case, this would be considered as an illegal activity.
WARNING: Beware of using unverified exploits from sources such as GitHub or Exploit-DB. These exploits and PoCs could contain malware. For more information, see how to use exploits safely.
Risk Information
CVSS Score Source [?]: CVE-2021-39275
CVSS V2 Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P/E:H/RL:OF/RC:C
CVSS Base Score: | 7.5 (High) |
Impact Subscore: | 6.4 |
Exploitability Subscore: | 10.0 |
CVSS Temporal Score: | 6.5 (Medium) |
CVSS Environmental Score: | NA (None) |
Modified Impact Subscore: | NA |
Overall CVSS Score: | 6.5 (Medium) |
CVSS Base Score: | 9.8 (Critical) |
Impact Subscore: | 5.9 |
Exploitability Subscore: | 3.9 |
CVSS Temporal Score: | 9.4 (Critical) |
CVSS Environmental Score: | NA (None) |
Modified Impact Subscore: | NA |
Overall CVSS Score: | 9.4 (Critical) |
STIG Risk Rating: High
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Plugin Source
This is the EulerOS_SA-2022-1373.nasl nessus plugin source code. This script is Copyright (C) 2022 and is owned by Tenable, Inc. or an Affiliate thereof.
#%NASL_MIN_LEVEL 70300
##
# (C) Tenable, Inc.
##
include('deprecated_nasl_level.inc');
include('compat.inc');
if (description)
{
script_id(159879);
script_version("1.3");
script_set_attribute(attribute:"plugin_modification_date", value:"2022/04/27");
script_cve_id(
"CVE-2021-34798",
"CVE-2021-36160",
"CVE-2021-39275",
"CVE-2021-40438"
);
script_xref(name:"IAVA", value:"2021-A-0440-S");
script_xref(name:"IAVA", value:"2022-A-0029");
script_xref(name:"CISA-KNOWN-EXPLOITED", value:"2021/12/15");
script_name(english:"EulerOS Virtualization 2.10.1 : httpd (EulerOS-SA-2022-1373)");
script_set_attribute(attribute:"synopsis", value:
"The remote EulerOS Virtualization host is missing multiple security updates.");
script_set_attribute(attribute:"description", value:
"According to the versions of the httpd packages installed, the EulerOS Virtualization installation on the remote host is
affected by the following vulnerabilities :
- Malformed requests may cause the server to dereference a NULL pointer. This issue affects Apache HTTP
Server 2.4.48 and earlier. (CVE-2021-34798)
- A carefully crafted request uri-path can cause mod_proxy_uwsgi to read above the allocated memory and
crash (DoS). This issue affects Apache HTTP Server versions 2.4.30 to 2.4.48 (inclusive). (CVE-2021-36160)
- ap_escape_quotes() may write beyond the end of a buffer when given malicious input. No included modules
pass untrusted data to these functions, but third-party / external modules may. This issue affects Apache
HTTP Server 2.4.48 and earlier. (CVE-2021-39275)
- A crafted request uri-path can cause mod_proxy to forward the request to an origin server choosen by the
remote user. This issue affects Apache HTTP Server 2.4.48 and earlier. (CVE-2021-40438)
Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security
advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional
issues.");
# https://developer.huaweicloud.com/ict/en/site-euleros/euleros/security-advisories/EulerOS-SA-2022-1373
script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?d93b3078");
script_set_attribute(attribute:"solution", value:
"Update the affected httpd packages.");
script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P");
script_set_cvss_temporal_vector("CVSS2#E:H/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:H/RL:O/RC:C");
script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-39275");
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:"2021/09/16");
script_set_attribute(attribute:"patch_publication_date", value:"2022/04/13");
script_set_attribute(attribute:"plugin_publication_date", value:"2022/04/18");
script_set_attribute(attribute:"plugin_type", value:"local");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:httpd");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:httpd-filesystem");
script_set_attribute(attribute:"cpe", value:"p-cpe:/a:huawei:euleros:httpd-tools");
script_set_attribute(attribute:"cpe", value:"cpe:/o:huawei:euleros:uvp:2.10.1");
script_set_attribute(attribute:"stig_severity", value:"I");
script_end_attributes();
script_category(ACT_GATHER_INFO);
script_family(english:"Huawei Local Security Checks");
script_copyright(english:"This script is Copyright (C) 2022 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/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 (uvp != "2.10.1") audit(AUDIT_OS_NOT, "EulerOS Virtualization 2.10.1");
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) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "EulerOS", cpu);
if ("aarch64" >!< cpu) audit(AUDIT_ARCH_NOT, "aarch64", cpu);
var flag = 0;
var pkgs = [
"httpd-2.4.43-4.h11.eulerosv2r10",
"httpd-filesystem-2.4.43-4.h11.eulerosv2r10",
"httpd-tools-2.4.43-4.h11.eulerosv2r10"
];
foreach (var pkg in pkgs)
if (rpm_check(release:"EulerOS-2.0", 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, "httpd");
}
The latest version of this script can be found in these locations depending on your platform:
- Linux / Unix:
/opt/nessus/lib/nessus/plugins/EulerOS_SA-2022-1373.nasl
- Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\EulerOS_SA-2022-1373.nasl
- Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/EulerOS_SA-2022-1373.nasl
Go back to menu.
How to Run
Here is how to run the EulerOS Virtualization 2.10.1 : httpd (EulerOS-SA-2022-1373) as a standalone plugin via the Nessus web user interface (https://localhost:8834/):
- Click to start a New Scan.
- Select Advanced Scan.
- Navigate to the Plugins tab.
- On the top right corner click to Disable All plugins.
- On the left side table select Huawei Local Security Checks plugin family.
- On the right side table select EulerOS Virtualization 2.10.1 : httpd (EulerOS-SA-2022-1373) plugin ID 159879.
- Specify the target on the Settings tab and click to Save the scan.
- Run the scan.
Here are a few examples of how to run the plugin in the command line. Note that the examples below demonstrate the usage on the Linux / Unix platform.
Basic usage:
/opt/nessus/bin/nasl EulerOS_SA-2022-1373.nasl -t <IP/HOST>
Run the plugin with audit trail message on the console:
/opt/nessus/bin/nasl -a EulerOS_SA-2022-1373.nasl -t <IP/HOST>
Run the plugin with trace script execution written to the console (useful for debugging):
/opt/nessus/bin/nasl -T - EulerOS_SA-2022-1373.nasl -t <IP/HOST>
Run the plugin with using a state file for the target and updating it (useful for running multiple plugins on the target):
/opt/nessus/bin/nasl -K /tmp/state EulerOS_SA-2022-1373.nasl -t <IP/HOST>
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References
IAVA | Information Assurance Vulnerability Alert:
- 2021-A-0440-S, 2022-A-0029
- https://www.tenable.com/plugins/nessus/159879
- http://www.nessus.org/u?d93b3078
- https://vulners.com/nessus/EULEROS_SA-2022-1373.NASL
- 155541 - CentOS 7 : httpd (CESA-2021:3856)
- 156311 - EulerOS 2.0 SP8 : httpd (EulerOS-SA-2021-2803)
- 156355 - EulerOS Virtualization 3.0.2.0 : httpd (EulerOS-SA-2021-2832)
- 156400 - EulerOS 2.0 SP9 : httpd (EulerOS-SA-2021-2915)
- 156410 - EulerOS 2.0 SP9 : httpd (EulerOS-SA-2021-2923)
- 156428 - EulerOS 2.0 SP5 : httpd (EulerOS-SA-2021-2931)
- 156774 - RHEL 7 : httpd (RHSA-2022:0143)
- 156797 - Oracle Linux 7 : httpd (ELSA-2022-0143)
- 156803 - Scientific Linux Security Update : httpd on SL7.x x86_64 (2022:0143)
- 156944 - Oracle HTTP Server (Jan 2022 CPU)
- 157118 - CentOS 7 : httpd (CESA-2022:0143)
- 157924 - EulerOS Virtualization 3.0.6.0 : httpd (EulerOS-SA-2022-1044)
- 157994 - EulerOS Virtualization 3.0.6.6 : httpd (EulerOS-SA-2022-1124)
- 158294 - EulerOS 2.0 SP3 : httpd (EulerOS-SA-2022-1167)
- 158371 - EulerOS 2.0 SP10 : httpd (EulerOS-SA-2022-1225)
- 158432 - EulerOS 2.0 SP10 : httpd (EulerOS-SA-2022-1206)
- 158840 - AlmaLinux 8 : httpd:2.4 (ALSA-2021:3816)
- 159881 - EulerOS Virtualization 2.10.0 : httpd (EulerOS-SA-2022-1399)
- 159930 - Oracle Enterprise Manager Ops Center (Apr 2022 CPU)
- 159947 - Oracle HTTP Server (Apr 2022 CPU)
Version
This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file EulerOS_SA-2022-1373.nasl version 1.3. For more plugins, visit the Nessus Plugin Library.
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