Mozilla Firefox ESR < 91.10

critical Nessus Plugin ID 161712

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Synopsis

A web browser installed on the remote Windows host is affected by multiple vulnerabilities.

Description

The version of Firefox ESR installed on the remote Windows host is prior to 91.10. It is, therefore, affected by multiple vulnerabilities as referenced in the mfsa2022-21 advisory.

- A malicious website could have learned the size of a cross-origin resource that supported Range requests.
(CVE-2022-31736)

- A malicious webpage could have caused an out-of-bounds write in WebGL, leading to memory corruption and a potentially exploitable crash. (CVE-2022-31737)

- When exiting fullscreen mode, an iframe could have confused the browser about the current state of fullscreen, resulting in potential user confusion or spoofing attacks. (CVE-2022-31738)

- When downloading files on Windows, the % character was not escaped, which could have lead to a download incorrectly being saved to attacker-influenced paths that used variables such as %HOMEPATH% or %APPDATA%.
This bug only affects Firefox for Windows. Other operating systems are unaffected. (CVE-2022-31739)

- On arm64, WASM code could have resulted in incorrect assembly generation leading to a register allocation problem, and a potentially exploitable crash. (CVE-2022-31740)

- A crafted CMS message could have been processed incorrectly, leading to an invalid memory read, and potentially further memory corruption. (CVE-2022-31741)

- An attacker could have exploited a timing attack by sending a large number of allowCredential entries and detecting the difference between invalid key handles and cross-origin key handles. This could have led to cross-origin account linking in violation of WebAuthn goals. (CVE-2022-31742)

- Mozilla developers Andrew McCreight, Nicolas B. Pierron, and the Mozilla Fuzzing Team reported memory safety bugs present in Firefox 100 and Firefox ESR 91.9. 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-2022-31747)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade to Mozilla Firefox ESR version 91.10 or later.

Plugin Details

Severity: Critical

ID: 161712

File Name: mozilla_firefox_91_10_esr.nasl

Version: 1.5

Type: local

Agent: windows

Family: Windows

Published: 5/31/2022

Updated: 1/9/2023

Supported Sensors: Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2022-31747

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:mozilla:firefox_esr

Required KB Items: Mozilla/Firefox/Version

Exploit Ease: No known exploits are available

Patch Publication Date: 5/31/2022

Vulnerability Publication Date: 5/31/2022

Reference Information

CVE: CVE-2022-31736, CVE-2022-31737, CVE-2022-31738, CVE-2022-31739, CVE-2022-31740, CVE-2022-31741, CVE-2022-31742, CVE-2022-31747

IAVA: 2022-A-0226-S

Detections

Analytics