Fedora 29 : php (2018-791c3cfe21) - Nessus

Medium Plugin ID: 120547

This page contains detailed information about the Fedora 29 : php (2018-791c3cfe21) 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: 120547
Name: Fedora 29 : php (2018-791c3cfe21)
Filename: fedora_2018-791c3cfe21.nasl
Vulnerability Published: 2018-09-16
This Plugin Published: 2019-01-03
Last Modification Time: 2021-01-06
Plugin Version: 1.5
Plugin Type: local
Plugin Family: Fedora Local Security Checks
Dependencies: ssh_get_info.nasl
Required KB Items [?]: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list

Vulnerability Information

Severity: Medium
Vulnerability Published: 2018-09-16
Patch Published: 2018-09-21
CVE [?]: CVE-2018-17082
CPE [?]: cpe:/o:fedoraproject:fedora:29, p-cpe:/a:fedoraproject:fedora:php

Synopsis

The remote Fedora host is missing a security update.

Description

**PHP version 7.2.10** (13 Sep 2018)

**Core:**

- Fixed bug php#76754 (parent private constant in extends class memory leak). (Laruence)

- Fixed bug php#72443 (Generate enabled extension). (petk)

- Fixed bug php#75797 (Memory leak when using class_alias() in non-debug mode). (Massimiliano Braglia)

**Apache2:**

- Fixed bug php#76582 (Apache bucket brigade sometimes becomes invalid). (stas)

**Bz2:**

- Fixed arginfo for bzcompress. (Tyson Andre)

**gettext:**

- Fixed bug php#76517 (incorrect restoring of LDFLAGS). (sji)

**iconv:**

- Fixed bug php#68180 (iconv_mime_decode can return extra characters in a header). (cmb)

- Fixed bug php#63839 (iconv_mime_decode_headers function is skipping headers). (cmb)

- Fixed bug php#60494 (iconv_mime_decode does ignore special characters). (cmb)

- Fixed bug php#55146 (iconv_mime_decode_headers() skips some headers). (cmb)

**intl:**

- Fixed bug php#74484 (MessageFormatter::formatMessage memory corruption with 11+ named placeholders). (Anatol)

**libxml:**

- Fixed bug php#76777 ('public id' parameter of libxml_set_external_entity_loader callback undefined). (Ville Hukkamäki)

**mbstring:**

- Fixed bug php#76704 (mb_detect_order return value varies based on argument type). (cmb)

**Opcache:**

- Fixed bug php#76747 (Opcache treats path containing 'test.pharma.tld' as a phar file). (Laruence)

**OpenSSL:**

- Fixed bug php#76705 (unusable ssl => peer_fingerprint in stream_context_create()). (Jakub Zelenka)

**phpdbg:**

- Fixed bug php#76595 (phpdbg man page contains outdated information). (Kevin Abel)

**SPL:**

- Fixed bug php#68825 (Exception in DirectoryIterator::getLinkTarget()). (cmb)

- Fixed bug php#68175 (RegexIterator pregFlags are NULL instead of 0). (Tim Siebels)

**Standard:**

- Fixed bug php#76778 (array_reduce leaks memory if callback throws exception). (cmb)

**zlib:**

- Fixed bug php#65988 (Zlib version check fails when an include/zlib/ style dir is passed to the --with-zlib configure option). (Jay Bonci)

- Fixed bug php#76709 (Minimal required zlib library is 1.2.0.4). (petk)

Note that Tenable Network Security has extracted the preceding description block directly from the Fedora update system website. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

Solution

Update the affected php package.

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 Fedora 29 : php (2018-791c3cfe21) vulnerability:

GitHub: https://bugs.php.net/bug.php?id=76582
[CVE-2018-17082]
GitHub: https://github.com/COVAIL/MITRE_NIST
[CVE-2018-17082]

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:P/A:N/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:L/PR:N/UI:R/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C

CVSS Base Score:	6.1 (Medium)
Impact Subscore:	2.7
Exploitability Subscore:	2.8
CVSS Temporal Score:	5.3 (Medium)
CVSS Environmental Score:	NA (None)
Modified Impact Subscore:	NA
Overall CVSS Score:	5.3 (Medium)

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Plugin Source

#%NASL_MIN_LEVEL 70300
#
# (C) Tenable Network Security, Inc.
#
# The descriptive text and package checks in this plugin were  
# extracted from Fedora Security Advisory FEDORA-2018-791c3cfe21.
#

include('deprecated_nasl_level.inc');
include('compat.inc');

if (description)
{
  script_id(120547);
  script_version("1.5");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/01/06");

  script_cve_id("CVE-2018-17082");
  script_xref(name:"FEDORA", value:"2018-791c3cfe21");

  script_name(english:"Fedora 29 : php (2018-791c3cfe21)");
  script_summary(english:"Checks rpm output for the updated package.");

  script_set_attribute(
    attribute:"synopsis", 
    value:"The remote Fedora host is missing a security update."
  );
  script_set_attribute(
    attribute:"description", 
    value:
"**PHP version 7.2.10** (13 Sep 2018)

**Core:**

  - Fixed bug php#76754 (parent private constant in extends
    class memory leak). (Laruence)

  - Fixed bug php#72443 (Generate enabled extension). (petk)

  - Fixed bug php#75797 (Memory leak when using
    class_alias() in non-debug mode). (Massimiliano Braglia)

**Apache2:**

  - Fixed bug php#76582 (Apache bucket brigade sometimes
    becomes invalid). (stas)

**Bz2:**

  - Fixed arginfo for bzcompress. (Tyson Andre)

**gettext:**

  - Fixed bug php#76517 (incorrect restoring of LDFLAGS).
    (sji)

**iconv:**

  - Fixed bug php#68180 (iconv_mime_decode can return extra
    characters in a header). (cmb)

  - Fixed bug php#63839 (iconv_mime_decode_headers function
    is skipping headers). (cmb)

  - Fixed bug php#60494 (iconv_mime_decode does ignore
    special characters). (cmb)

  - Fixed bug php#55146 (iconv_mime_decode_headers() skips
    some headers). (cmb)

**intl:**

  - Fixed bug php#74484 (MessageFormatter::formatMessage
    memory corruption with 11+ named placeholders). (Anatol)

**libxml:**

  - Fixed bug php#76777 ('public id' parameter of
    libxml_set_external_entity_loader callback undefined).
    (Ville Hukkam&auml;ki)

**mbstring:**

  - Fixed bug php#76704 (mb_detect_order return value varies
    based on argument type). (cmb)

**Opcache:**

  - Fixed bug php#76747 (Opcache treats path containing
    'test.pharma.tld' as a phar file). (Laruence)

**OpenSSL:**

  - Fixed bug php#76705 (unusable ssl => peer_fingerprint in
    stream_context_create()). (Jakub Zelenka)

**phpdbg:**

  - Fixed bug php#76595 (phpdbg man page contains outdated
    information). (Kevin Abel)

**SPL:**

  - Fixed bug php#68825 (Exception in
    DirectoryIterator::getLinkTarget()). (cmb)

  - Fixed bug php#68175 (RegexIterator pregFlags are NULL
    instead of 0). (Tim Siebels)

**Standard:**

  - Fixed bug php#76778 (array_reduce leaks memory if
    callback throws exception). (cmb)

**zlib:**

  - Fixed bug php#65988 (Zlib version check fails when an
    include/zlib/ style dir is passed to the --with-zlib
    configure option). (Jay Bonci)

  - Fixed bug php#76709 (Minimal required zlib library is
    1.2.0.4). (petk)

Note that Tenable Network Security has extracted the preceding
description block directly from the Fedora update system website.
Tenable has attempted to automatically clean and format it as much as
possible without introducing additional issues."
  );
  script_set_attribute(
    attribute:"see_also",
    value:"https://bodhi.fedoraproject.org/updates/FEDORA-2018-791c3cfe21"
  );
  script_set_attribute(attribute:"solution", value:"Update the affected php package.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:N/I:P/A:N");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N");
  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:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:fedoraproject:fedora:php");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:fedoraproject:fedora:29");

  script_set_attribute(attribute:"vuln_publication_date", value:"2018/09/16");
  script_set_attribute(attribute:"patch_publication_date", value:"2018/09/21");
  script_set_attribute(attribute:"plugin_publication_date", value:"2019/01/03");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_copyright(english:"This script is Copyright (C) 2019-2021 and is owned by Tenable, Inc. or an Affiliate thereof.");
  script_family(english:"Fedora Local Security Checks");

  script_dependencies("ssh_get_info.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/RedHat/release", "Host/RedHat/rpm-list");

  exit(0);
}


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


if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
release = get_kb_item("Host/RedHat/release");
if (isnull(release) || "Fedora" >!< release) audit(AUDIT_OS_NOT, "Fedora");
os_ver = pregmatch(pattern: "Fedora.*release ([0-9]+)", string:release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Fedora");
os_ver = os_ver[1];
if (! preg(pattern:"^29([^0-9]|$)", string:os_ver)) audit(AUDIT_OS_NOT, "Fedora 29", "Fedora " + os_ver);

if (!get_kb_item("Host/RedHat/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);


cpu = get_kb_item("Host/cpu");
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ("x86_64" >!< cpu && cpu !~ "^i[3-6]86$") audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, "Fedora", cpu);


flag = 0;
if (rpm_check(release:"FC29", reference:"php-7.2.10-1.fc29")) flag++;


if (flag)
{
  security_report_v4(
    port       : 0,
    severity   : SECURITY_WARNING,
    extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, "php");
}

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

Linux / Unix:
/opt/nessus/lib/nessus/plugins/fedora_2018-791c3cfe21.nasl
Windows:
C:\ProgramData\Tenable\Nessus\nessus\plugins\fedora_2018-791c3cfe21.nasl
Mac OS X:
/Library/Nessus/run/lib/nessus/plugins/fedora_2018-791c3cfe21.nasl

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How to Run

Here is how to run the Fedora 29 : php (2018-791c3cfe21) 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 Fedora Local Security Checks plugin family.
On the right side table select Fedora 29 : php (2018-791c3cfe21) plugin ID 120547.
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 fedora_2018-791c3cfe21.nasl -t <IP/HOST>

Run the plugin with audit trail message on the console:

/opt/nessus/bin/nasl -a fedora_2018-791c3cfe21.nasl -t <IP/HOST>

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

/opt/nessus/bin/nasl -T - fedora_2018-791c3cfe21.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 fedora_2018-791c3cfe21.nasl -t <IP/HOST>

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References

Fedora Security Update:

2018-791c3cfe21

See also:

Similar and related Nessus plugins:

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120107 - SUSE SLES12 Security Update : php7 (SUSE-SU-2018:2887-1)
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Version

This page has been produced using Nessus Professional 10.1.2 (#68) LINUX, Plugin set 202205072148.
Plugin file fedora_2018-791c3cfe21.nasl version 1.5. For more plugins, visit the Nessus Plugin Library.

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Fedora 29 : php (2018-791c3cfe21) - Nessus

Plugin Overview

Vulnerability Information

Synopsis

Description

Solution

Public Exploits

Risk Information

Plugin Source

How to Run

References

Version

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