CVE-2021-43532

Published: Dic 08, 2021 Last Modified: Nov 21, 2024 EU-VD ID: EUVD-2021-30461 Aliases: GSD-2021-43532
ExploitDB:
Other exploit source:
Google Dorks:
MEDIUM 6,1
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: required
Scope: changed
Confidentiality: low
Integrity: low
Availability: none
MEDIUM 5,8
Source: [email protected]
Access Vector: network
Access Complexity: medium
Authentication: none
Confidentiality: partial
Integrity: partial
Availability: none

Description

AI Translation Available

The 'Copy Image Link' context menu action would copy the final image URL after redirects. By embedding an image that triggered authentication flows - in conjunction with a Content Security Policy that stopped a redirection chain in the middle - the final image URL could be one that contained an authentication token used to takeover a user account. If a website tricked a user into copy and pasting the image link back to the page, the page would be able to steal the authentication tokens. This was fixed by making the action return the original URL, before any redirects. This vulnerability affects Firefox < 94.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0023
Percentile
0,5th
Updated

EPSS Score Trend (Last 90 Days)

601

URL Redirection to Untrusted Site ('Open Redirect')

Draft
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control Confidentiality Other
Potential Impacts:
Bypass Protection Mechanism Gain Privileges Or Assume Identity Other
Applicable Platforms
Technologies: Web Based, Web Server
Likelihood of Exploit: Low
View CWE Details
Application

Firefox by Mozilla

Product Information
Vendor Mozilla
Product Firefox
Version Range Affected
To 94.0 (exclusive)
cpe:2.3:a:mozilla:firefox:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://bugzilla.mozilla.org/show_bug.cgi?id=1719203
Issue Tracking Permissions Required Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1719203
https://www.mozilla.org/security/advisories/mfsa2021-48/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-48/
https://bugzilla.mozilla.org/show_bug.cgi?id=1719203
Issue Tracking Permissions Required Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1719203
https://www.mozilla.org/security/advisories/mfsa2021-48/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2021-48/