CVE-2017-16541
MEDIUMCVSS 6.5/10EPSS 3.66%
Last modified
CVE-2017-16541 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. Tor Browser before 7.0.9 on macOS and Linux allows remote attackers to bypass the intended anonymity feature and discover a client IP address via vectors involving a crafted web site that leverages file:// mishandling in Firefox, aka TorMoil. NOTE: Tails is unaffected.. EPSS estimates a 3.66% chance of exploitation in the next 30 days.
Description
Tor Browser before 7.0.9 on macOS and Linux allows remote attackers to bypass the intended anonymity feature and discover a client IP address via vectors involving a crafted web site that leverages file:// mishandling in Firefox, aka TorMoil. NOTE: Tails is unaffected.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Torproject | Tor | < 7.0.9 |
| Redhat | Enterprise Linux Desktop | 6.0 |
| Redhat | Enterprise Linux Desktop | 7.0 |
| Redhat | Enterprise Linux Eus | 7.5 |
| Redhat | Enterprise Linux Eus | 7.6 |
| Redhat | Enterprise Linux Eus | 7.7 |
| Redhat | Enterprise Linux Server | 6.0 |
| Redhat | Enterprise Linux Server | 7.0 |
| Redhat | Enterprise Linux Server Aus | 7.6 |
| Redhat | Enterprise Linux Server Aus | 7.7 |
| Redhat | Enterprise Linux Server Tus | 7.6 |
| Redhat | Enterprise Linux Server Tus | 7.7 |
| Redhat | Enterprise Linux Workstation | 6.0 |
| Redhat | Enterprise Linux Workstation | 7.0 |
| Debian | Debian Linux | 8.0 |
| Debian | Debian Linux | 9.0 |
References
- http://www.securityfocus.com/bid/101665Broken Link
- http://www.securitytracker.com/id/1041610Broken Link
- https://access.redhat.com/errata/RHSA-2018:2692Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2693Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3403Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3458Third Party Advisory
- https://blog.torproject.org/tor-browser-709-releasedIssue Tracking, Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1412081Exploit, Issue Tracking, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/11/msg00011.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201810-01Third Party Advisory
- https://security.gentoo.org/glsa/201811-13Third Party Advisory
- https://trac.torproject.org/projects/tor/ticket/24052Issue Tracking, Vendor Advisory
- https://www.bleepingcomputer.com/news/security/tormoil-vulnerability-leaks-real-ip-address-from-tor-browser-users/Issue Tracking, Third Party Advisory
- https://www.debian.org/security/2018/dsa-4327Third Party Advisory
- https://www.wearesegment.com/research/tormoil-torbrowser-unspecified-critical-security-vulnerability/Issue Tracking, Third Party Advisory
- http://www.securityfocus.com/bid/101665Broken Link
- http://www.securitytracker.com/id/1041610Broken Link
- https://access.redhat.com/errata/RHSA-2018:2692Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:2693Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3403Third Party Advisory
- https://access.redhat.com/errata/RHSA-2018:3458Third Party Advisory
- https://blog.torproject.org/tor-browser-709-releasedIssue Tracking, Vendor Advisory
- https://bugzilla.mozilla.org/show_bug.cgi?id=1412081Exploit, Issue Tracking, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2018/11/msg00011.htmlMailing List, Third Party Advisory
- https://security.gentoo.org/glsa/201810-01Third Party Advisory
- https://security.gentoo.org/glsa/201811-13Third Party Advisory
- https://trac.torproject.org/projects/tor/ticket/24052Issue Tracking, Vendor Advisory
- https://www.bleepingcomputer.com/news/security/tormoil-vulnerability-leaks-real-ip-address-from-tor-browser-users/Issue Tracking, Third Party Advisory
- https://www.debian.org/security/2018/dsa-4327Third Party Advisory
- https://www.wearesegment.com/research/tormoil-torbrowser-unspecified-critical-security-vulnerability/Issue Tracking, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2017-16541?
Tor Browser before 7.0.9 on macOS and Linux allows remote attackers to bypass the intended anonymity feature and discover a client IP address via vectors involving a crafted web site that leverages file:// mishandling in Firefox, aka TorMoil. NOTE: Tails is unaffected.
How severe is CVE-2017-16541?
CVE-2017-16541 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 3.66% probability of exploitation in the next 30 days.
How do I fix CVE-2017-16541?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2017-16541?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST