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[email protected]CVE-2021-27736

HistoryApr 22, 2021 - 2:15 p.m.

CVE-2021-27736

2021-04-2214:15:09

CWE-611

[email protected]

web.nvd.nist.gov

cve-2021-27736

fusionauth

xxe

authnrequest

logoutrequest

nvd

4 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

48.9%

JSON

FusionAuth fusionauth-samlv2 before 0.5.4 allows XXE attacks via a forged AuthnRequest or LogoutRequest because parseFromBytes uses javax.xml.parsers.DocumentBuilderFactory unsafely.

Affected configurations

NVD

Node

fusionauthsaml_v2Range<0.5.4

CPENameOperatorVersion
fusionauth:saml_v2fusionauth saml v2lt0.5.4

CPE	Name	Operator	Version
fusionauth:saml_v2	fusionauth saml v2	lt	0.5.4

References

github.com/FusionAuth/fusionauth-samlv2/commit/c66fb689d50010662f705d5b585c6388ce555dbd

github.com/FusionAuth/fusionauth-samlv2/compare/0.5.3...0.5.4

www.compass-security.com/fileadmin/Research/Advisories/2021-03_CSNC-2021-004_FusionAuth_SAML_Library_XML_External_Entity.txt

4 Medium

CVSS2

Attack Vector

NETWORK

Attack Complexity

LOW

Authentication

SINGLE

Confidentiality Impact

PARTIAL

Integrity Impact

NONE

Availability Impact

NONE

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

6.5 Medium

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

NONE

Availability Impact

NONE

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

0.001 Low

EPSS

Percentile

48.9%

JSON

Related for CVE-2021-27736

prion1 osv1 cvelist1 nvd1