CVE Vulnerability

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.

6.8 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 6.4

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact PARTIAL

Integrity Impact PARTIAL

Availability Impact PARTIAL

Scope

9.8 /10

CVSS v3.0 : CRITICAL

V3 Legend

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

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/ Mailing List Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KBOGOQOK3TIWWJV66MW5YWNRJAFFYGR5/ Mailing List Third Party Advisory
Configurations

Configuration 1

cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Information

Published : 2020-04-27 02:15

Updated : 2022-11-16 03:18

NVD link : CVE-2019-20790

Mitre link : CVE-2019-20790

Products Affected

Pypolicyd-spf

Pypolicyd-spf Project

CWE
CWE-290

Authentication Bypass by Spoofing