Security feature bypass

2018-06-1121:29:00

PRIOn knowledge base

www.prio-n.com

5.3 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

LOW

Availability Impact

NONE

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

6.2 Medium

AI Score

Confidence

Low

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.002 Low

EPSS

Percentile

51.5%

JSON

Sites can bypass security checks on permissions to install lightweight themes by manipulating the “baseURI” property of the theme element. This could allow a malicious site to install a theme without user interaction which could contain offensive or embarrassing images. This vulnerability affects Thunderbird < 52.8, Thunderbird ESR < 52.8, Firefox < 60, and Firefox ESR < 52.8.

CPENameOperatorVersion
ubuntu_linuxeq16.04
ubuntu_linuxeq14.04
ubuntu_linuxeq17.10
ubuntu_linuxeq18.04
debian_linuxeq8.0
debian_linuxeq7.0
debian_linuxeq9.0
firefoxlt60.0
firefox_esrlt52.8.0
thunderbirdlt52.8.0

Name	Operator	Version
ubuntu_linux	eq	16.04
ubuntu_linux	eq	14.04
ubuntu_linux	eq	17.10
ubuntu_linux	eq	18.04
debian_linux	eq	8.0
debian_linux	eq	7.0
debian_linux	eq	9.0
firefox	lt	60.0
firefox_esr	lt	52.8.0
thunderbird	lt	52.8.0