PT-2015-2870 · Php+1 · Phpmailer+1

Takeshi Terada · Published 2015-12-13 · Updated 2020-03-05 · CVE-2015-8476

Positive Technologies (AI Summary)

CVSS v2.0

5.0

Medium

Base vector

AV:N/AC:L/Au:N/C:N/I:P/A:N

Name of the Vulnerable Software and Affected Versions PHPMailer versions prior to 5.2.14

Description The issue allows attackers to inject arbitrary SMTP commands via CRLF sequences in an email address to the validateAddress function in class.phpmailer.php or an SMTP command to the sendCommand function in class.smtp.php. This can be exploited by injecting line breaks into valid email addresses, which are not handled correctly in some contexts.

Recommendations For versions prior to 5.2.14, update to version 5.2.14 or later to resolve the issue. As a temporary workaround, consider manually stripping line breaks from email addresses before passing them to PHPMailer.

Exploit

Fix

RCE

Weakness Enumeration

CWE-93

CWE-20

Related Identifiers

ALT-PU-2016-2512

BDU:2015-12236

CVE-2015-8476

DLA-363-1

DSA-3416-1

GHSA-738M-F33V-QC2R

MGASA-2015-0484

Affected Products

Alt Linux

Phpmailer

References · 24

• 🔥 https://github.com/FriendsOfPHP/security-advisories/blob/master/phpmailer/phpmailer/CVE-2015-8476.yaml · Exploit
• https://github.com/PHPMailer/PHPMailer/releases/tag/v5.2.14 · Vendor Advisory
• https://osv.dev/vulnerability/DEBIAN-CVE-2015-8476 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2015-8476 · Security Note
• http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177130.html · Vendor Advisory
• http://debian.org/security/2015/dsa-3416 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2015-8476 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2015-8476 · Vendor Advisory
• http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177139.html · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2015-8476 · Security Note
• https://osv.dev/vulnerability/GHSA-738m-f33v-qc2r · Vendor Advisory
• https://advisories.mageia.org/MGASA-2015-0484.html · Security Note
• https://bdu.fstec.ru/vul/2015-12236 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2015-8476 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-3416-1 · Vendor Advisory