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mozillaMozilla FoundationMFSA2013-54
HistoryJun 25, 2013 - 12:00 a.m.

Data in the body of XHR HEAD requests leads to CSRF attacks — Mozilla

2013-06-2500:00:00
Mozilla Foundation
www.mozilla.org
20

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.006 Low

EPSS

Percentile

78.8%

Security researcher Johnathan Kuskos reported that Firefox is sending data in the body of XMLHttpRequest (XHR) HEAD requests, which goes agains the XHR specification. This can potentially be used for Cross-Site Request Forgery (CSRF) attacks against sites which do not distinguish between HEAD and POST requests.

4.3 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

PARTIAL

Availability Impact

NONE

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

0.006 Low

EPSS

Percentile

78.8%