PT-2020-16763 · Thingsboard · Thingsboard

Vin01 · Published 2020-12-18 · Updated 2021-07-21 · CVE-2020-27687

Positive Technologies (AI Summary)

CVSS v3.1

8.8

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Name of the Vulnerable Software and Affected Versions ThingsBoard versions prior to 3.2

Description The issue allows an attacker to send malicious links in password-reset emails to victims, pointing to an attacker-controlled server due to lack of validation of the Host header. This enables host header injection in password-reset emails.

Recommendations For versions prior to 3.2, update to version 3.2 or later to resolve the issue. As a temporary workaround, consider restricting the use of password-reset emails until a patch is available.

Exploit

Fix

Special Elements Injection

RCE

Weakness Enumeration

CWE-74

CWE-20

Related Identifiers

CVE-2020-27687

Affected Products

Thingsboard

References · 6

• 🔥 https://gist.github.com/vin01/26a8bb13233acd9425e7575a7ad4c936 · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2020-27687 · Security Note
• https://osv.dev/vulnerability/CVE-2020-27687 · Vendor Advisory
• https://github.com/thingsboard/thingsboard/commits/master · Note
• https://t.me/cibsecurity/21090 · Telegram Post
• https://t.me/cvenotify/7561 · Telegram Post