Oracle Solaris Critical Patch Update : apr2020_SRU11_3_36_20_0 - Nessus

High Plugin ID: 135667

This page contains detailed information about the Oracle Solaris Critical Patch Update : apr2020_SRU11_3_36_20_0 Nessus plugin including available exploits and PoCs found on GitHub, in Metasploit or Exploit-DB for verifying of this vulnerability.

Table Of Contents

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Plugin Overview
Vulnerability Information

Synopsis
Description
Solution

Public Exploits
Risk Information
Plugin Source
How to Run
References
Version

Plugin Overview

ID: 135667
Name: Oracle Solaris Critical Patch Update : apr2020_SRU11_3_36_20_0
Filename: solaris_apr2020_SRU11_3_36_20_0.nasl
Vulnerability Published: 2020-04-15
This Plugin Published: 2020-04-16
Last Modification Time: 2021-06-03
Plugin Version: 1.4
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: High
Vulnerability Published: 2020-04-15
Patch Published: 2020-04-01
CVE [?]: CVE-2020-2851, CVE-2020-2927, CVE-2020-2944
CPE [?]: cpe:/o:oracle:solaris:11.3

Synopsis

The remote Solaris system is missing a security patch from CPU apr2020.

Description

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

- Vulnerability in the Oracle Solaris product of Oracle Systems (component: Common Desktop Environment). Supported versions that are affected are 10 and 11. Difficult to exploit vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Solaris executes to compromise Oracle Solaris. While the vulnerability is in Oracle Solaris, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Oracle Solaris. (CVE-2020-2851)

- Vulnerability in the Oracle Solaris product of Oracle Systems (component: Common Desktop Environment). Supported versions that are affected are 10 and 11. Easily exploitable vulnerability allows low privileged attacker with logon to the infrastructure where Oracle Solaris executes to compromise Oracle Solaris. While the vulnerability is in Oracle Solaris, attacks may significantly impact additional products. Successful attacks of this vulnerability can result in takeover of Oracle Solaris. (CVE-2020-2944)

Solution

Install the apr2020 CPU from the Oracle support website.

Public Exploits

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

Here's the list of publicly known exploits and PoCs for verifying the Oracle Solaris Critical Patch Update : apr2020_SRU11_3_36_20_0 vulnerability:

Exploit-DB: exploits/solaris/local/48359.c
[EDB-48359: Oracle Solaris Common Desktop Environment 1.6 - Local Privilege Escalation]
GitHub: https://github.com/0xdea/advisories
[CVE-2020-2851]
GitHub: https://github.com/0xdea/raptor_infiltrate20
[CVE-2020-2851]
GitHub: https://github.com/0xdea/advisories
[CVE-2020-2944]
GitHub: https://github.com/0xdea/exploits
[CVE-2020-2944]
GitHub: https://github.com/0xdea/raptor_infiltrate20
[CVE-2020-2944]

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:L/AC:L/Au:N/C:C/I:C/A:C/E:POC/RL:OF/RC:C

CVSS Base Score:	7.2 (High)
Impact Subscore:	10.0
Exploitability Subscore:	3.9
CVSS Temporal Score:	5.6 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	5.6 (Medium)

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

CVSS Base Score:	8.8 (High)
Impact Subscore:	6.0
Exploitability Subscore:	2.0
CVSS Temporal Score:	7.9 (High)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	7.9 (High)

STIG Severity [?]: I
STIG Risk Rating: High

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Plugin Source

#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from the Oracle CPU for apr2020.
#
include("compat.inc");

if (description)
{
  script_id(135667);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/06/03");

  script_cve_id("CVE-2020-2851", "CVE-2020-2927", "CVE-2020-2944");
  script_xref(name:"IAVA", value:"2020-A-0154-S");

  script_name(english:"Oracle Solaris Critical Patch Update : apr2020_SRU11_3_36_20_0");
  script_summary(english:"Check for the apr2020 CPU");

  script_set_attribute(
    attribute:"synopsis", 
    value:
"The remote Solaris system is missing a security patch from CPU
apr2020."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"This Solaris system is missing necessary patches to address critical
security updates :

  - Vulnerability in the Oracle Solaris product of Oracle
    Systems (component: Common Desktop Environment).
    Supported versions that are affected are 10 and 11.
    Difficult to exploit vulnerability allows low privileged
    attacker with logon to the infrastructure where Oracle
    Solaris executes to compromise Oracle Solaris. While the
    vulnerability is in Oracle Solaris, attacks may
    significantly impact additional products. Successful
    attacks of this vulnerability can result in takeover of
    Oracle Solaris. (CVE-2020-2851)

  - Vulnerability in the Oracle Solaris product of Oracle
    Systems (component: Common Desktop Environment).
    Supported versions that are affected are 10 and 11.
    Difficult to exploit vulnerability allows low privileged
    attacker with logon to the infrastructure where Oracle
    Solaris executes to compromise Oracle Solaris. While the
    vulnerability is in Oracle Solaris, attacks may
    significantly impact additional products. Successful
    attacks of this vulnerability can result in takeover of
    Oracle Solaris. (CVE-2020-2927)

  - Vulnerability in the Oracle Solaris product of Oracle
    Systems (component: Common Desktop Environment).
    Supported versions that are affected are 10 and 11.
    Easily exploitable vulnerability allows low privileged
    attacker with logon to the infrastructure where Oracle
    Solaris executes to compromise Oracle Solaris. While the
    vulnerability is in Oracle Solaris, attacks may
    significantly impact additional products. Successful
    attacks of this vulnerability can result in takeover of
    Oracle Solaris. (CVE-2020-2944)"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://support.oracle.com/epmos/faces/DocumentDisplay?id=2650589.1"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.oracle.com/a/tech/docs/cpuapr2020cvrf.xml"
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://www.oracle.com/security-alerts/cpuapr2020.html"
  );
  script_set_attribute(
    attribute:"solution", 
    value:"Install the apr2020 CPU from the Oracle support website."
  );
  script_set_cvss_base_vector("CVSS2#AV:L/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:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");

  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:"2020/04/15");
  script_set_attribute(attribute:"patch_publication_date", value:"2020/04/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2020/04/16");
  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_copyright(english:"This script is Copyright (C) 2020-2021 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 = "0.5.11-0.175.3.36.0.20.0";

flag = 0;

if (solaris_check_release(release:"0.5.11-0.175.3.36.0.20.0", sru:"11.3.36.20.0") > 0) flag++;

if (flag)
{
  if (report_verbosity > 0) security_hole(port:0, extra:solaris_get_report2());
  else security_hole(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_apr2020_SRU11_3_36_20_0.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\solaris_apr2020_SRU11_3_36_20_0.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/solaris_apr2020_SRU11_3_36_20_0.nasl

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How to Run

Here is how to run the Oracle Solaris Critical Patch Update : apr2020_SRU11_3_36_20_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 : apr2020_SRU11_3_36_20_0 plugin ID 135667.
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_apr2020_SRU11_3_36_20_0.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a solaris_apr2020_SRU11_3_36_20_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_apr2020_SRU11_3_36_20_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_apr2020_SRU11_3_36_20_0.nasl -t <IP/HOST>

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References

IAVA | Information Assurance Vulnerability Alert:

2020-A-0154-S

See also:

Similar and related Nessus plugins:

135435 - Solaris 10 (sparc) : 125279-09
135441 - Solaris 10 (x86) : 125280-09
109176 - Oracle Solaris Critical Patch Update : apr2018_SRU11_3_31_6_0 (Spectre)
135668 - Oracle Solaris Critical Patch Update : apr2020_SRU11_4_15_5_0
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130007 - Oracle Solaris Critical Patch Update : oct2019_SRU11_4_12_5_0
141772 - Oracle Solaris Critical Patch Update : oct2020_SRU11_3_36_23_0
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Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file solaris_apr2020_SRU11_3_36_20_0.nasl version 1.4. For more plugins, visit the Nessus Plugin Library.

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Oracle Solaris Critical Patch Update : apr2020_SRU11_3_36_20_0 - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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