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osvGoogleOSV:GHSA-J2JP-WVQG-WC2G
HistoryNov 29, 2022 - 11:55 p.m.

crewjam/saml vulnerable to signature bypass via multiple Assertion elements due to improper authentication

2022-11-2923:55:54
Google
osv.dev
9

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.006 Low

EPSS

Percentile

78.0%

Impact

The crewjam/saml go library is vulnerable to an authentication bypass when processing SAML responses containing multiple Assertion elements.

Patches

This issue has been corrected in version 0.4.9.

Credit

This issue was reported by Felix Wilhelm from Google Project Zero.

CPENameOperatorVersion
github.com/crewjam/samllt0.4.9

9.8 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.5 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

PARTIAL

Integrity Impact

PARTIAL

Availability Impact

PARTIAL

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

0.006 Low

EPSS

Percentile

78.0%