Vulnerability Description
The Mozilla Windows updater modifies some files to be updated by reading the original file and applying changes to it. The location of the original file can be altered by a malicious user by passing a special path to the callback parameter through the Mozilla Maintenance Service, allowing the manipulation of files in the installation directory and privilege escalation by manipulating the Mozilla Maintenance Service, which has privileged access. Note: This attack requires local system access and only affects Windows. Other operating systems are not affected. This vulnerability affects Firefox ESR < 52.2 and Firefox < 54.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mozilla | Firefox | < 52.2.0 |
| Microsoft | Windows | - |
Related Weaknesses (CWE)
References
- http://www.securityfocus.com/bid/99057Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038689Third Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1348645ExploitIssue TrackingPatch
- https://www.mozilla.org/security/advisories/mfsa2017-15/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-16/Vendor Advisory
- http://www.securityfocus.com/bid/99057Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1038689Third Party AdvisoryVDB Entry
- https://bugzilla.mozilla.org/show_bug.cgi?id=1348645ExploitIssue TrackingPatch
- https://www.mozilla.org/security/advisories/mfsa2017-15/Vendor Advisory
- https://www.mozilla.org/security/advisories/mfsa2017-16/Vendor Advisory
FAQ
What is CVE-2017-7760?
CVE-2017-7760 is a vulnerability with a CVSS score of 7.8 (HIGH). The Mozilla Windows updater modifies some files to be updated by reading the original file and applying changes to it. The location of the original file can be altered by a malicious user by passing a...
How severe is CVE-2017-7760?
CVE-2017-7760 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-7760?
Check the references section above for vendor advisories and patch information. Affected products include: Mozilla Firefox, Microsoft Windows.