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nessusThis script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.MOZILLA_THUNDERBIRD_78_9.NASL
HistoryMar 25, 2021 - 12:00 a.m.

Mozilla Thunderbird < 78.9

2021-03-2500:00:00
This script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.
www.tenable.com
14

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.003

Percentile

67.8%

The version of Thunderbird installed on the remote Windows host is prior to 78.9. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2021-12 advisory.

  • A texture upload of a Pixel Buffer Object could have confused the WebGL code to skip binding the buffer used to unpack it, resulting in memory corruption and a potentially exploitable information leak or crash.
    (CVE-2021-23981)

  • Using techniques that built on the slipstream research, a malicious webpage could have scanned both an internal network’s hosts as well as services running on the user’s local machine utilizing WebRTC connections. (CVE-2021-23982)

  • A malicious extension could have opened a popup window lacking an address bar. The title of the popup lacking an address bar should not be fully controllable, but in this situation was. This could have been used to spoof a website and attempt to trick the user into providing credentials. (CVE-2021-23984)

  • Mozilla developers and community members Alexis Beingessner, Tyson Smith, Julien Wajsberg, and Matthew Gregan reported memory safety bugs present in Thunderbird 78.8. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. (CVE-2021-23987)

Note that Nessus has not tested for this issue but has instead relied only on the application’s self-reported version number.

## 
# (C) Tenable Network Security, Inc.
#                                  
# The descriptive text and package checks in this plugin were
# extracted from Mozilla Foundation Security Advisory mfsa2021-12.
# The text itself is copyright (C) Mozilla Foundation.
##

include('compat.inc');

if (description)
{
  script_id(148110);
  script_version("1.3");
  script_set_attribute(attribute:"plugin_modification_date", value:"2021/04/06");

  script_cve_id(
    "CVE-2021-23981",
    "CVE-2021-23982",
    "CVE-2021-23984",
    "CVE-2021-23987"
  );

  script_name(english:"Mozilla Thunderbird < 78.9");

  script_set_attribute(attribute:"synopsis", value:
"A mail client installed on the remote Windows host is affected by multiple vulnerabilities.");
  script_set_attribute(attribute:"description", value:
"The version of Thunderbird installed on the remote Windows host is prior to 78.9. It is, therefore, affected by multiple
vulnerabilities as referenced in the mfsa2021-12 advisory.

  - A texture upload of a Pixel Buffer Object could have confused the WebGL code to skip binding the buffer
    used to unpack it, resulting in memory corruption and a potentially exploitable information leak or crash.
    (CVE-2021-23981)

  - Using techniques that built on the slipstream research, a malicious webpage could have scanned both an
    internal network's hosts as well as services running on the user's local machine utilizing WebRTC
    connections. (CVE-2021-23982)

  - A malicious extension could have opened a popup window lacking an address bar. The title of the popup
    lacking an address bar should not be fully controllable, but in this situation was. This could have been
    used to spoof a website and attempt to trick the user into providing credentials. (CVE-2021-23984)

  - Mozilla developers and community members Alexis Beingessner, Tyson Smith, Julien Wajsberg, and Matthew
    Gregan reported memory safety bugs present in Thunderbird 78.8. Some of these bugs showed evidence of
    memory corruption and we presume that with enough effort some of these could have been exploited to run
    arbitrary code. (CVE-2021-23987)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://www.mozilla.org/en-US/security/advisories/mfsa2021-12/");
  script_set_attribute(attribute:"solution", value:
"Upgrade to Mozilla Thunderbird version 78.9 or later.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:M/Au:N/C:P/I:P/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:L/PR:N/UI:R/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2021-23987");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/03/23");
  script_set_attribute(attribute:"patch_publication_date", value:"2021/03/23");
  script_set_attribute(attribute:"plugin_publication_date", value:"2021/03/25");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/a:mozilla:thunderbird");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Windows");

  script_copyright(english:"This script is Copyright (C) 2021 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("mozilla_org_installed.nasl");
  script_require_keys("Mozilla/Thunderbird/Version");

  exit(0);
}

include('mozilla_version.inc');

port = get_kb_item('SMB/transport');
if (!port) port = 445;

installs = get_kb_list('SMB/Mozilla/Thunderbird/*');
if (isnull(installs)) audit(AUDIT_NOT_INST, 'Thunderbird');

mozilla_check_version(installs:installs, product:'thunderbird', esr:FALSE, fix:'78.9', severity:SECURITY_WARNING);
VendorProductVersionCPE
mozillathunderbirdcpe:/a:mozilla:thunderbird

CVSS2

6.8

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:P/I:P/A:P

CVSS3

8.8

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.003

Percentile

67.8%