Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2023-51747

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.

Published

2024-02-27T14:15:27.030

Last Modified

2025-05-05T21:02:14.223

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 7.1 (HIGH)

Weaknesses

Type: Secondary
CWE-20
Type: Secondary
CWE-290
CWE-444

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	apache	james	3.7.5	Yes
Application	apache	james	3.8.1	Yes

References

http://www.openwall.com/lists/oss-security/2024/02/27/4 Mailing List, Third Party Advisory ([email protected])
https://lists.apache.org/thread/rxkwbkh9vgbl9rzx1fkllyk3krhgydko Mailing List, Vendor Advisory ([email protected])
https://postfix.org/smtp-smuggling.html Product ([email protected])
https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/ Product ([email protected])
http://www.openwall.com/lists/oss-security/2024/02/27/4 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.apache.org/thread/rxkwbkh9vgbl9rzx1fkllyk3krhgydko Mailing List, Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://postfix.org/smtp-smuggling.html Product (af854a3a-2127-422b-91ae-364da2661108)
https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide/ Product (af854a3a-2127-422b-91ae-364da2661108)