Vulnerability Report

CVE-2023-4104

Title: Invalid Polkit Authentication check in Mozilla VPN on Linux

Privilege Escalation

Proof Of Concept

No public PoC currently indexed for CVE-2023-4104.

CWE Category CWE-862

Published Date Sep 11, 2023

Modified Date Jul 03, 2025

Exploit Status Not Found

Score 5.5 CVSS v3.1

Exploit Probability (EPSS)

0.35%

Vulnerability Summary

CVE-2023-4104: An invalid Polkit Authentication check and missing authentication requirements for D-Bus methods allowed any local user to configure arbitrary VPN setups. *This bug only affects Mozilla VPN on Linux. Other operating systems are unaffected.* This vulnerability affects Mozilla VPN 2.16.1 < (Linux).

Impacted Vendors

hola 1

mozilla 1

Reference Links

https://bugzilla.mozilla.org/show_bug.cgi?id=1831318 https://github.com/mozilla-mobile/mozilla-vpn-client/pull/7055 https://github.com/mozilla-mobile/mozilla-vpn-client/pull/7110 https://github.com/mozilla-mobile/mozilla-vpn-client/pull/7151 https://www.mozilla.org/security/advisories/mfsa2023-39/ https://www.openwall.com/lists/oss-security/2023/08/03/1 https://bugzilla.mozilla.org/show_bug.cgi?id=1831318 https://github.com/mozilla-mobile/mozilla-vpn-client/pull/7055 https://github.com/mozilla-mobile/mozilla-vpn-client/pull/7110 https://github.com/mozilla-mobile/mozilla-vpn-client/pull/7151 https://www.mozilla.org/security/advisories/mfsa2023-39/ https://www.openwall.com/lists/oss-security/2023/08/03/1

CVSS v3.1

Source Entity [email protected]

Severity MEDIUM

5.5

Attack Vector

LOCAL

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

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

CVSS v3.1

Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0

Severity MEDIUM

5.5

Attack Vector

LOCAL

Complexity

LOW

Privileges

N/A

Interaction

NONE

Confidentiality

N/A

Integrity

N/A

Availability

N/A

Scope

UNCHANGED

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

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2023-4104 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

July 03, 2025 MODIFIED

Vulnerability data or affected products updated.

September 11, 2023 PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector LOCAL

Complexity LOW

Privileges N/A

Interaction NONE

CVSS Vector String


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

Affected Stack

No specific products linked.