Command Injection in Postfix - CVE-2023-51764
Published: December 24, 2023 / Updated: October 9, 2024
Vulnerability identifier: #VU84727
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:P/U:Green
CVE-ID: CVE-2023-51764
CWE-ID: CWE-77
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: Postfix.org
Affected software:
Postfix
Postfix
Detailed vulnerability description
The vulnerability allows a remote attacker to spoof email messages.
The vulnerability exists due to an error when handling line endings other than <CR><LF>. A remote attacker can spoof contents of email message and bypass SPF protection mechanism.
How to mitigate CVE-2023-51764
Install updates from vendor's website.