Apache James Vulnerable to SMTP Smuggling
CVE-2023-51747

7.1HIGH

Key Information:

Vendor
Apache
Status
Apache James Server
Vendor
CVE Published:
27 February 2024

Summary

A vulnerability in Apache James prior to versions 3.8.1 and 3.7.5 exposes users to SMTP smuggling attacks. This issue arises from lenient line delimiter handling, leading to discrepancies in how messages are interpreted by senders and receivers. Attackers can exploit this flaw to manipulate SMTP envelopes, potentially allowing them to bypass SPF checks and deliver spoofed emails. It is crucial for users to upgrade to the patched versions to ensure protection against these vulnerabilities.

Affected Version(s)

Apache James server 0 <= 3.7.4

Apache James server 3.8 <= 3.8.0

References

https://sec-consult.com/blog/detail/smtp-smuggling-spoofi...
related
https://postfix.org/smtp-smuggling.html
related
https://lists.apache.org/thread/rxkwbkh9vgbl9rzx1fkllyk3k...
vendor-advisory

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
Low
Integrity:
High
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Benoit TELLIER
.