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CVE-2017-7761

Published: Jun 11, 2018

Modified: Aug 5, 2024

PUBLISHED

Description

The Mozilla Maintenance Service "helper.exe" application creates a temporary directory writable by non-privileged users. When this is combined with creation of a junction (a form of symbolic link), protected files in the target directory of the junction can be deleted by 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.

Vendor	Product	Versions
Mozilla	Firefox ESR	affected `unspecified - < 52.2`
Mozilla	Firefox	affected `unspecified - < 54`

References

vdb-entry

x_refsource_BID

https://bugzilla.mozilla.org/show_bug.cgi?id=1215648

x_refsource_CONFIRM

https://www.mozilla.org/security/advisories/mfsa2017-15/

x_refsource_CONFIRM

vdb-entry

x_refsource_SECTRACK

https://sourceforge.net/p/nsis/bugs/1125/

x_refsource_MISC

https://www.mozilla.org/security/advisories/mfsa2017-16/

x_refsource_CONFIRM

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