CVE-2019-20790

OpenDMARC through 1.3.2 and 1.4.x, when used with pypolicyd-spf 2.0.2, allows attacks that bypass SPF and DMARC authentication in situations where the HELO field is inconsistent with the MAIL FROM field.

CVSS v3.0 9.8 CRITICAL
CVSS v2.0 6.8 MEDIUM

9.8^/10

CVSS v3.0 : CRITICAL

Vector :

Exploitability : 3.9 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

6.8^/10

CVSS v2.0 : MEDIUM

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

Exploitability : 8.6 / Impact : 6.4

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

References

Link	Resource
https://sourceforge.net/p/opendmarc/tickets/235/	Exploit Third Party Advisory
https://bugs.launchpad.net/pypolicyd-spf/+bug/1838816	Exploit Third Party Advisory
https://www.usenix.org/system/files/sec20fall_chen-jianjun_prepub_0.pdf	Technical Description Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2D4JGHMALEJEWWG56DKR5OZB22TK7W5B/
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KBOGOQOK3TIWWJV66MW5YWNRJAFFYGR5/

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Configurations

Configuration 1 (hide)

AND

cpe:2.3:a:trusteddomain:opendmarc:*:*:*:*:*:*:*:*

cpe:2.3:a:trusteddomain:opendmarc:1.4.0:*:*:*:*:*:*:*

cpe:2.3:a:pypolicyd-spf_project:pypolicyd-spf:2.0.2:*:*:*:*:*:*:*

Information

Published : 2020-04-27 07:15

Updated : 2021-05-30 21:15

NVD link : CVE-2019-20790

Mitre link : CVE-2019-20790

JSON object : View

CWE

CWE-290

Authentication Bypass by Spoofing

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Products Affected

pypolicyd-spf_project

pypolicyd-spf

trusteddomain

opendmarc

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