CVE-2020-28021

Exim 4 before 4.94.2 has Improper Neutralization of Line Delimiters. An authenticated remote SMTP client can insert newline characters into a spool file (which indirectly leads to remote code execution as root) via AUTH= in a MAIL FROM command.

CVSS v3 8.8 HIGH
CVSS v2.0 9.0 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

9.0^/10

CVSS v2.0 : HIGH

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

Exploitability : 8.0 / Impact : 10.0

Access Vector NETWORK

Access Complexity LOW

Authentication SINGLE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28021-MAUTH.txt	Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:exim:exim:*:*:*:*:*:*:*:*

History

10 May 2021, 16:23

Type	Values Removed	Values Added
CPE		cpe:2.3:a:exim:exim::::::::
References	~~(MISC) https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28021-MAUTH.txt -~~	(MISC) https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28021-MAUTH.txt - Vendor Advisory
CWE		NVD-CWE-Other
CVSS	v2 : ~~unknown~~ v3 : ~~unknown~~	v2 : 9.0 v3 : 8.8

06 May 2021, 13:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2021-05-06 13:15

Updated : 2023-12-10 13:55

NVD link : CVE-2020-28021

Mitre link : CVE-2020-28021

CVE.ORG link : CVE-2020-28021

JSON object : View

Products Affected

exim

exim

CWE

NVD-CWE-Other

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