CVE-2023-51747 SMTP smuggling in Apache James

2024-02-2713:08:01

CWE-20

apache

www.cve.org

cve-2023-51747

apache james

smtp smuggling

6.6 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

15.5%

JSON

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.

CNA Affected

[
  {
    "defaultStatus": "unaffected",
    "product": "Apache James server",
    "vendor": "Apache Software Foundation",
    "versions": [
      {
        "lessThanOrEqual": "3.7.4",
        "status": "affected",
        "version": "0",
        "versionType": "semver"
      },
      {
        "lessThanOrEqual": "3.8.0",
        "status": "affected",
        "version": "3.8",
        "versionType": "semver"
      }
    ]
  }
]