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CVE-2023-51747

HIGH

7.1

Description

Apache James prior to versions 3.8.1 and 3.7.5 is vulnerable to SMTP smuggling. A lenient behaviour in line delimiter handling might create a difference of interpretation between the sender and the receiver which can be exploited by an attacker to forge an SMTP envelop, allowing for instance to bypass SPF checks. The patch implies enforcement of CRLF as a line delimiter as part of the DATA transaction. We recommend James users to upgrade to non vulnerable versions.

CVE Details

CVSS v3.1 Score7.1

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredLOW

User InteractionNONE

Published2/27/2024

Last Modified5/5/2025

Sourcenvd

Honeypot Sightings0

Affected Products

apache:james

Weaknesses (CWE)

CWE-20CWE-290CWE-444

References

http://www.openwall.com/lists/oss-security/2024/02/27/4(security@apache.org)

https://lists.apache.org/thread/rxkwbkh9vgbl9rzx1fkllyk3krhgydko(security@apache.org)

https://postfix.org/smtp-smuggling.html(security@apache.org)

https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/(security@apache.org)

http://www.openwall.com/lists/oss-security/2024/02/27/4(af854a3a-2127-422b-91ae-364da2661108)

https://lists.apache.org/thread/rxkwbkh9vgbl9rzx1fkllyk3krhgydko(af854a3a-2127-422b-91ae-364da2661108)

https://postfix.org/smtp-smuggling.html(af854a3a-2127-422b-91ae-364da2661108)

https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/(af854a3a-2127-422b-91ae-364da2661108)

IOC Correlations

No correlations recorded

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