Improper Neutralization of Special Elements in Output Used by a Downstream Component in nodemailer - CVE-2020-7769
Published: June 6, 2023
Vulnerability identifier: #VU76973
CSH Severity: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2020-7769
CWE-ID: CWE-74
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerable software:
nodemailer
nodemailer
Software vendor:
nodemailer
nodemailer
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to use of crafted recipient email addresses. A remote unauthenticated attacker can trigger the vulnerability resulting in arbitrary command flag injection in sendmail transport for sending mails.
Remediation
Install updates from vendor's website.
External links
- https://snyk.io/vuln/SNYK-JS-NODEMAILER-1038834
- https://snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-1039742
- https://github.com/nodemailer/nodemailer/blob/33b62e2ea6bc9215c99a9bb4bfba94e2fb27ebd0/lib/sendmail-transport/index.js%23L75
- https://github.com/nodemailer/nodemailer/commit/ba31c64c910d884579875c52d57ac45acc47aa54