Oracle Solaris Critical Patch Update : jul2021_SRU11_3_36_26_0 - Nessus

Medium Plugin ID: 151922

This page contains detailed information about the Oracle Solaris Critical Patch Update : jul2021_SRU11_3_36_26_0 Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

hide

Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 151922
Name: Oracle Solaris Critical Patch Update : jul2021_SRU11_3_36_26_0
Filename: solaris_jul2021_SRU11_3_36_26_0.nasl
Vulnerability Published: 2021-02-16
This Plugin Published: 2021-07-21
Last Modification Time: 2021-07-28
Plugin Version: 1.2
Plugin Type: local
Plugin Family: Solaris Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/local_checks_enabled, Host/Solaris11/release

Vulnerability Information

Severity: Medium
Vulnerability Published: 2021-02-16
Patch Published: 2021-07-01
CVE [?]: CVE-2021-23841
CPE [?]: cpe:/o:oracle:solaris:11.3

Synopsis

The remote Solaris system is missing a security patch from CPU jul2021.

Description

This Solaris system is missing necessary patches to address a critical security update :

- Vulnerability in the MySQL Server product of Oracle MySQL (component: Server: Security: Encryption (OpenSSL)). Supported versions that are affected are 5.7.33 and prior and 8.0.23 and prior. Easily exploitable vulnerability allows unauthenticated attacker with network access via multiple protocols to compromise MySQL Server. Successful attacks of this vulnerability can result in unauthorized ability to cause a hang or frequently repeatable crash (complete DOS) of MySQL Server. CVSS 3.1 Base Score 7.5 (Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). (CVE-2021-23841)

Solution

Install the jul2021 CPU from the Oracle support website.

Public Exploits

Target Network Port(s): N/A
Target Asset(s): N/A
Exploit Available: True (GitHub)
Exploit Ease: Exploits (PoCs) are available

Here's the list of publicly known exploits and PoCs for verifying the Oracle Solaris Critical Patch Update : jul2021_SRU11_3_36_26_0 vulnerability:

GitHub: https://github.com/JamesGeee/CVE-2021-23841
[CVE-2021-23841: PoC for exploiting CVE-2021-23841]
GitHub: https://github.com/Trinadh465/external_boringssl_openssl_1.1.0g_CVE-2021-23841
[CVE-2021-23841]
GitHub: https://github.com/falk-werner/cve-check
[CVE-2021-23841]
GitHub: https://github.com/jntass/TASSL-1.1.1k
[CVE-2021-23841]
GitHub: https://github.com/thecyberbaby/Trivy-by-aquaSecurity
[CVE-2021-23841]
GitHub: https://github.com/vinamra28/tekton-image-scan-trivy
[CVE-2021-23841]

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 V2 Vector [?]: AV:N/AC:M/Au:N/C:N/I:N/A:P/E:U/RL:OF/RC:C

CVSS Base Score:	4.3 (Medium)
Impact Subscore:	2.9
Exploitability Subscore:	8.6
CVSS Temporal Score:	3.2 (Low)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	3.2 (Low)

CVSS V3 Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C

CVSS Base Score:	5.9 (Medium)
Impact Subscore:	3.6
Exploitability Subscore:	2.2
CVSS Temporal Score:	5.2 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	5.2 (Medium)

Go back to menu.

Plugin Source

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from the Oracle CPU for jul2021.
#
include('deprecated_nasl_level.inc');
include("compat.inc");

if (description)
{
  script_id(151922);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/07/28");

  script_cve_id("CVE-2021-23841");

  script_name(english:"Oracle Solaris Critical Patch Update : jul2021_SRU11_3_36_26_0");
  script_summary(english:"Check for the jul2021 CPU");

  script_set_attribute(
    attribute:"synopsis",
    value:
"The remote Solaris system is missing a security patch from CPU
jul2021."
  );
  script_set_attribute(
    attribute:"description",
    value:
"This Solaris system is missing necessary patches to address a critical
security update :

  - Vulnerability in the MySQL Server product of Oracle
    MySQL (component: Server: Security: Encryption
    (OpenSSL)). Supported versions that are affected are
    5.7.33 and prior and 8.0.23 and prior. Easily
    exploitable vulnerability allows unauthenticated
    attacker with network access via multiple protocols to
    compromise MySQL Server. Successful attacks of this
    vulnerability can result in unauthorized ability to
    cause a hang or frequently repeatable crash (complete
    DOS) of MySQL Server. CVSS 3.1 Base Score 7.5
    (Availability impacts). CVSS Vector:
    (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H).
    (CVE-2021-23841)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://support.oracle.com/epmos/faces/DocumentDisplay?id=2788472.1"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.oracle.com/a/tech/docs/cpujul2021cvrf.xml"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.oracle.com/security-alerts/cpujul2021.html"
  );
  script_set_attribute(
    attribute:"solution",
    value:"Install the jul2021 CPU from the Oracle support website."
  );
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:solaris:11.3");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/02/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/07/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/07/21");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Solaris Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/Solaris11/release");

  exit(0);
}


include("audit.inc");
include("global_settings.inc");
include("solaris.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/Solaris11/release");
if (isnull(release)) audit(AUDIT_OS_NOT, "Solaris11");


fix_release = "0.5.11-0.175.3.36.0.26.0";

flag = 0;

if (solaris_check_release(release:"0.5.11-0.175.3.36.0.26.0", sru:"11.3.36.26.0") > 0) flag++;

if (flag)
{
  if (report_verbosity > 0) security_warning(port:0, extra:solaris_get_report2());
  else security_warning(0);
  exit(0);
}
audit(AUDIT_OS_RELEASE_NOT, "Solaris", fix_release, release);

The latest version of this script can be found in these locations depending on your platform:

Linux / Unix:
/opt/nessus/lib/nessus/plugins/solaris_jul2021_SRU11_3_36_26_0.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\solaris_jul2021_SRU11_3_36_26_0.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/solaris_jul2021_SRU11_3_36_26_0.nasl

Go back to menu.

How to Run

Here is how to run the Oracle Solaris Critical Patch Update : jul2021_SRU11_3_36_26_0 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 Solaris Local Security Checks plugin family.
On the right side table select Oracle Solaris Critical Patch Update : jul2021_SRU11_3_36_26_0 plugin ID 151922.
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 solaris_jul2021_SRU11_3_36_26_0.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a solaris_jul2021_SRU11_3_36_26_0.nasl -t <IP/HOST>

Run the plugin with trace script execution written to the console (useful for debugging):

/opt/nessus/bin/nasl -T - solaris_jul2021_SRU11_3_36_26_0.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 solaris_jul2021_SRU11_3_36_26_0.nasl -t <IP/HOST>

Go back to menu.

References

See also:

Similar and related Nessus plugins:

109176 - Oracle Solaris Critical Patch Update : apr2018_SRU11_3_31_6_0 (Spectre)
135667 - Oracle Solaris Critical Patch Update : apr2020_SRU11_3_36_20_0
135668 - Oracle Solaris Critical Patch Update : apr2020_SRU11_4_15_5_0
80936 - Oracle Solaris Critical Patch Update : jan2015_SRU11_1_11_4_0
80937 - Oracle Solaris Critical Patch Update : jan2015_SRU11_1_15_4_0
88003 - Oracle Solaris Critical Patch Update : jan2016_SRU11_3_4_5_0
121223 - Oracle Solaris Critical Patch Update : jan2019_SRU11_4_3_5_0 (Foreshadow) (Spectre)
132997 - Oracle Solaris Critical Patch Update : jan2020_SRU11_4_16_4_0
111188 - Oracle Solaris Critical Patch Update : jul2018_SRU11_3_31_6_0
126764 - Oracle Solaris Critical Patch Update : jul2019_SRU11_3_36_13_0
126768 - Oracle Solaris Critical Patch Update : jul2019_SRU11_4_8_5_0
138539 - Oracle Solaris Critical Patch Update : jul2020_SRU11_4_21_69_0
100997 - Solaris 11 : Multiple Kernel Vulnerabilities
76829 - Oracle Solaris Critical Patch Update : oct2012_SRU10_5
130006 - Oracle Solaris Critical Patch Update : oct2019_SRU11_3_36_15_0
130007 - Oracle Solaris Critical Patch Update : oct2019_SRU11_4_12_5_0
141772 - Oracle Solaris Critical Patch Update : oct2020_SRU11_3_36_23_0
141773 - Oracle Solaris Critical Patch Update : oct2020_SRU11_4_24_75_2
11513 - Solaris in.lpd Crafted Job Request Arbitrary Remote Command Execution
142712 - Oracle Solaris PAM parse_user_name() buffer overflow (CVE-2020-14871)

Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file solaris_jul2021_SRU11_3_36_26_0.nasl version 1.2. For more plugins, visit the Nessus Plugin Library.

Go back to menu.

Oracle Solaris Critical Patch Update : jul2021_SRU11_3_36_26_0 - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

Nessus Plugin Library

Solving Problems with Office 365 Email from GoDaddy

Empire Module Library

CrackMapExec Module Library

Metasploit Android Modules

Top 16 Active Directory Vulnerabilities

Top 10 Vulnerabilities: Internal Infrastructure Pentest

Terminal Escape Injection

Cisco Password Cracking and Decrypting Guide

Capture Passwords using Wireshark

SSH Brute Force Attack Tool using PuTTY / Plink (ssh-putty-brute.ps1)

SMB Brute Force Attack Tool in PowerShell (SMBLogin.ps1)

Port Scanner in PowerShell (TCP/UDP)

Nessus CSV Parser and Extractor

Default Password Scanner (default-http-login-hunter.sh)