Vulnerability-Lookup

VAR-202402-2654

Vulnerability from variot - Updated: 2025-05-09 03:05

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. Apache Software Foundation of Apache James These include vulnerabilities related to input validation, vulnerabilities related to authentication evasion through spoofing, HTTP There is a vulnerability related to request smuggling.Information may be obtained and information may be tampered with

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CVE-2023-51747 (GCVE-0-2023-51747)

Vulnerability from cvelistv5 – Published: 2024-02-27 13:08 – Updated: 2025-02-13 17:19

Title

SMTP smuggling in Apache James

Summary

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.

Severity ?

No CVSS data available.

CWE

CWE-20 - Improper Input Validation

Assigner

apache

References

URL

Tags

	https://sec-consult.com/blog/detail/smtp-smugglin…	related
	https://postfix.org/smtp-smuggling.html	related
	https://lists.apache.org/thread/rxkwbkh9vgbl9rzx1…	vendor-advisory
	http://www.openwall.com/lists/oss-security/2024/02/27/4

Impacted products

	Vendor	Product	Version
	Apache Software Foundation	Apache James server	Affected: 0 , ≤ 3.7.4 (semver) Affected: 3.8 , ≤ 3.8.0 (semver)

Credits

Benoit TELLIER

Show details on NVD website

JSON

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Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

VAR-202402-2654

CVE-2023-51747 (GCVE-0-2023-51747)

Tags

Sightings

Nomenclature