GHSA-p5q9-86w4-2xr5
SMTP smuggling in Apache James
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Maven | org.apache.james:james-server | < 3.7.5 | 3.7.5 |
| Maven | org.apache.james:james-server | >= 3.8.0, < 3.8.1 | 3.8.1 |
Details
As written in the advisory (Markdown source, shown as plain text).
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.
References
External links from the advisory. They lead to third-party sites.
- https://nvd.nist.gov/vuln/detail/CVE-2023-51747
- https://github.com/apache/james-project/commit/d1ef102540e504c067b6c1721a6f1e7eee9c6fc6
- https://github.com/apache/james-project/commit/d5cd8bb098aa78d8d62c9645f3c532689ef1cb03
- https://github.com/apache/james-project
- https://lists.apache.org/thread/rxkwbkh9vgbl9rzx1fkllyk3krhgydko
- https://postfix.org/smtp-smuggling.html
- https://sec-consult.com/blog/detail/smtp-smuggling-spoofing-e-mails-worldwide
- http://www.openwall.com/lists/oss-security/2024/02/27/4