CVE-2020-28026

Exim 4 before 4.94.2 has Improper Neutralization of Line Delimiters, relevant in non-default configurations that enable Delivery Status Notification (DSN). Certain uses of ORCPT= can place a newline into a spool header file, and indirectly allow unauthenticated remote attackers to execute arbitrary commands as root.

CVSS v3 9.8 CRITICAL
CVSS v2.0 9.3 HIGH

9.8^/10

CVSS v3 : 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

9.3^/10

CVSS v2.0 : HIGH

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

Exploitability : 8.6 / Impact : 10.0

Access Vector NETWORK

Access Complexity MEDIUM

Authentication NONE

Confidentiality Impact COMPLETE

Integrity Impact COMPLETE

Availability Impact COMPLETE

References

Link	Resource
https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28026-FGETS.txt	Third Party Advisory
https://www.exim.org/static/doc/security/CVE-2020-qualys/CVE-2020-28026-FGETS.txt	Third Party Advisory

Configurations

Configuration 1 (hide)

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

History

No history.

Information

Published : 2021-05-06 13:15

Updated : 2024-11-21 05:22

NVD link : CVE-2020-28026

Mitre link : CVE-2020-28026

CVE.ORG link : CVE-2020-28026

JSON object : View

Products Affected

exim

exim

CWE

NVD-CWE-Other

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