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rubygemsRubySecRUBY:RUBY-2019-16201
HistorySep 30, 2019 - 9:00 p.m.

Regular Expression Denial of Service vulnerability of WEBrick's Digest access authentication

2019-09-3021:00:00
RubySec
www.ruby-lang.org
28

CVSS2

7.8

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Regular expression denial of service vulnerability of WEBrick’s Digest
authentication module was found. An attacker can exploit this vulnerability
to cause an effective denial of service against a WEBrick service.

Affected configurations

Vulners
Node
rubyrubyRange2.4.02.4.8
OR
rubyrubyRange2.5.02.5.7
OR
rubyrubyRange2.6.02.6.5
OR
rubyrubyRange2.7.01
VendorProductVersionCPE
rubyruby*cpe:2.3:a:ruby:ruby:*:*:*:*:*:*:*:*

CVSS2

7.8

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

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

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H