CVE-2017-5454

MEDIUM

Description

A mechanism to bypass file system access protections in the sandbox to use the file picker to access different files than those selected in the file picker through the use of relative paths. This allows for read only access to the local file system. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 52.1, and Firefox < 53.

References

http://www.securityfocus.com/bid/97940

http://www.securitytracker.com/id/1038320

https://access.redhat.com/errata/RHSA-2017:1106

https://access.redhat.com/errata/RHSA-2017:1201

https://bugzilla.mozilla.org/show_bug.cgi?id=1349276

https://www.mozilla.org/security/advisories/mfsa2017-10/

https://www.mozilla.org/security/advisories/mfsa2017-12/

https://www.mozilla.org/security/advisories/mfsa2017-13/

Details

Source: MITRE

Published: 2018-06-11

Updated: 2018-08-09

Type: CWE-200

Risk Information

CVSS v2.0

Base Score: 5

Vector: AV:N/AC:L/Au:N/C:P/I:N/A:N

Impact Score: 2.9

Exploitability Score: 10

Severity: MEDIUM

CVSS v3.0

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Impact Score: 3.6

Exploitability Score: 3.9

Severity: HIGH