Improper input validation in Apache Commons Email

1) Improper input validation

EUVDB-ID: #VU7654

Risk: Low

CVSSv3.1: 6.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-9801

CWE-ID: CWE-20 - Improper input validation

Exploit availability: No

Description

The vulnerability allows a remote attacker to inject arbitrary files.

The weakness exists due to improper input validation flaw in the setSubject() method. A remote attacker can supply a specially crafted value containing line break characters, inject SMTP headers and perform further attack.

Mitigation

Update to version 1.5.

Vulnerable software versions

Commons Email: 1.0 - 1.4

External links

http://commons.apache.org/proper/commons-email/security-reports.html

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.