Auth bypass in Mozilla Vpn 2.16.1
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).
Vulnerability class: Broken Access Control
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.
EPSS exploit prediction
EPSS: 0.003 (24.4th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: 0.000
Affected products
- Mozilla Vpn 2.16.1 — versions unspecified
- Mozilla Vpn
Weakness classification (CWE)
Public proof-of-concept exploits
References
- bugzilla.mozilla.org/show_bug.cgi (Exploit, Issue Tracking)
- github.com/mozilla-mobile/mozilla-vpn-client/pull/7055 (Patch, Issue Tracking)
- github.com/mozilla-mobile/mozilla-vpn-client/pull/7110 (Patch, Issue Tracking)
- github.com/mozilla-mobile/mozilla-vpn-client/pull/7151 (Issue Tracking)
- www.mozilla.org/security/advisories/mfsa2023-39/ (Vendor Advisory)
- www.openwall.com/lists/oss-security/2023/08/03/1 (Exploit, Mailing List, Third Party Advisory)
Frequently asked questions
- What is CVE-2023-4104?
- CVE-2023-4104 is a medium-severity vulnerability in Mozilla Vpn 2.16.1, classified under Missing Authorization. CVSS score: 5.5/10. Published 2023-09-11.
- How severe is CVE-2023-4104?
- Medium severity. CVSS v3 base score is 5.5 out of 10.
- Is CVE-2023-4104 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.