CVE-2023-29541

Mozilla: Files with malicious extensions could have been downloaded unsafely on Linux

Severity Score

8.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

NVD
RedHat

Firefox did not properly handle downloads of files ending in <code>.desktop</code>, which can be interpreted to run attacker-controlled commands. <br>*This bug only affects Firefox for Linux on certain Distributions. Other operating systems are unaffected, and Mozilla is unable to enumerate all affected Linux Distributions.*. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.

The Mozilla Foundation Security Advisory describes this flaw as:

Firefox did not properly handle downloads of files ending in `.desktop`, which can be interpreted to run attacker-controlled commands.

*This bug only affects Firefox for Linux on certain Distributions. Other operating systems are unaffected, and Mozilla is unable to enumerate all affected Linux Distributions.*

*Credits: N/A

CVSS Scores

NISTv3.1 8.8

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-04-07 CVE Reserved
2023-04-12 CVE Published
2024-07-04 EPSS Updated
2024-08-02 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-116: Improper Encoding or Escaping of Output
CWE-434: Unrestricted Upload of File with Dangerous Type

CAPEC

References (5)

URL	Tag	Source

URL	Date	SRC

URL	Date	SRC

URL	Date	SRC
https://www.mozilla.org/security/advisories/mfsa2023-13	2023-06-09
https://www.mozilla.org/security/advisories/mfsa2023-14	2023-06-09
https://www.mozilla.org/security/advisories/mfsa2023-15	2023-06-09
https://access.redhat.com/security/cve/CVE-2023-29541	2023-04-17
https://bugzilla.redhat.com/show_bug.cgi?id=2186106	2023-04-17

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Mozilla Search vendor "Mozilla"		Firefox Search vendor "Mozilla" for product "Firefox"				< 112.0 Search vendor "Mozilla" for product "Firefox" and version " < 112.0"		-		Affected
Mozilla Search vendor "Mozilla"		Firefox Search vendor "Mozilla" for product "Firefox"				< 112.0 Search vendor "Mozilla" for product "Firefox" and version " < 112.0"		android		Affected
Mozilla Search vendor "Mozilla"		Firefox Esr Search vendor "Mozilla" for product "Firefox Esr"				< 102.10 Search vendor "Mozilla" for product "Firefox Esr" and version " < 102.10"		-		Affected
Mozilla Search vendor "Mozilla"		Focus Search vendor "Mozilla" for product "Focus"				< 112.0 Search vendor "Mozilla" for product "Focus" and version " < 112.0"		android		Affected
Mozilla Search vendor "Mozilla"		Thunderbird Search vendor "Mozilla" for product "Thunderbird"				< 102.10 Search vendor "Mozilla" for product "Thunderbird" and version " < 102.10"		-		Affected