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mozillaMozilla FoundationMFSA2015-132
HistoryNov 03, 2015 - 12:00 a.m.

Mixed content WebSocket policy bypass through workers — Mozilla

2015-11-0300:00:00
Mozilla Foundation
www.mozilla.org
32

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

0.009 Low

EPSS

Percentile

82.3%

Mozilla developer Ehsan Akhgari reported a mechanism through which a web worker could be used to bypass secure requirements for WebSockets when workers are used to create WebSockets. This allows for the bypassing of mixed content WebSocket policy.

CPENameOperatorVersion
firefoxlt42
firefox esrlt38.4
thunderbirdlt38.4

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

0.009 Low

EPSS

Percentile

82.3%